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Climate Change Blog

 

Bureau of Reclamation Releases New Hydrologic Projections for Contiguous United States

News article Bureau of Reclamation Releases New Hydrologic Projections for Contiguous United States
Related Link: http://gdo-dcp.ucllnl.org/downscaled_cmip_projections/
(Published July 22, 2014)
Source: Association of California Water Agencies
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Temperature / Water supply, changes in supply, snowpack /
(Posted July 23, 2014)

 

Climate Change Research Catalog

Report Climate Change Research Catalog - "The Climate Change Research Catalog contains information about research projects supported by state government, including the project name and year, budget, principal investigators, and a short description. The Catalog is a resource for researchers, the public, and State agency staff, created to disseminate results and identify opportunities for collaboration and further study." (Published )
Source: California.
Climate Change Topics: Agriculture / California: Statewide / Ecosystems, Habitat, Threatened Species / Energy management and conservation / Greenhouse gas (GHG) increases / Greenhouse gas (GHG) reduction, mitigation / Research / Sea level rise / Temperature / Water supply, changes in supply, snowpack /
(Posted July 23, 2014)

 

USGS Coastal Change Hazards Portal

Report USGS Coastal Change Hazards Portal - Shows degress of risk from extreme storms, shoreline change, sea-level rise. (Published July 16, 2014)
Source: United States. Geological Survey
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Sea level rise /
(Posted July 22, 2014)

 

CivicSpark is Now Taking Applications for Local Government Climate Change Response Support

News article CivicSpark is Now Taking Applications for Local Government Climate Change Response Support (Published July 14, 2014)
Source: Association of California Water Agencies
Climate Change Topics: Adaptation / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted July 15, 2014)

 

Governing California Through Climate Change

Report Governing California Through Climate Change - "1. The Governor should direct his administration . . . to establish the best state science on anticipated climate change impacts and help decision-makers accurately assess their climate risks based on that science. 2. State government at all levels should further incorporate climate risk assessment into everyday public planning and governing processes throughout California. 3. The Legislature should expand the primary mission of the Strategic Growth Council beyond mitigation of greenhouse gas emissions through the SB 375 Sustainable Communities Strategy to include an equal focus on climate change adaptation in California. The Council's operating guidelines and charge to support planning and development of 'sustainable communities' should stretch to include the ability to identify and address climate impacts appropriate to the community or region. 4. State government should work with counties, private insurers, wildland stakeholders and the building industry to minimize wildfires and property damage by more aggressively enforcing defensible space requirements existing in state law. The state and stakeholders should promote Ventura County’s success in enforcing compliance and reducing wildfire costs and damage as a climate change model for wildland urban interface areas. 5. The Governor should work with key state agencies . . . to clarify the impact of sea level rise on California's Common Law Public Trust Doctrine. A collective dialogue should seek ways to create a legal framework in advance of crisis and prevent litigation and instability as a rising ocean begins to condemn private property on the Pacific coastline." (Published July 10, 2014)
Source: California. Little Hoover Commission
Climate Change Topics: California: Statewide / Land Use, environmental management systems, and regulation / SB 375 / Sea level rise / Wildfires /
(Posted July 14, 2014)

 

Our Coast, Our Future

Report Our Coast, Our Future - Contains "modeling results for sea level rise and storm surge in the San Francisco Bay area." From a consortium of government agencies and nonprofits. (Published )
Climate Change Topics: California: Bay Area and Delta / Models and Tools / Sea level rise /
(Posted July 14, 2014)

 

Recent Talk on Sea Level Rise Stresses Need for Acceptance and Adaptation

News article Recent Talk on Sea Level Rise Stresses Need for Acceptance and Adaptation (Published July 4, 2014)
Source: KQED Radio
Climate Change Topics: Adaptation / California: Bay Area and Delta / Sea level rise /
(Posted July 7, 2014)

 

Response surfaces of vulnerability to climate change: the Colorado River Basin, the High Plains, and California

Report Response surfaces of vulnerability to climate change: the Colorado River Basin, the High Plains, and California - "We quantify the vulnerability of water supply to shortage for the Colorado River Basin and basins of the High Plains and California and assess the sensitivity of their water supply system to future changes in the statistical variability of supply and demand. We do so for current conditions and future socio-economic scenarios within a probabilistic framework that incorporates the inherent uncertainties in the drivers of vulnerability. Our analysis indicates that the most sensitive basins to both current and future variability of demand and supply are the Central California and the San Joaquin-Tulare basins. Large sensitivity is also found for the Kansas basin of the High Plains. Within the Colorado River Basin, the Lower Colorado and Gila were found to be the most vulnerable and sensitive sub-basins. By accounting for future uncertainty within the above probabilistic framework, this study unveils and isolates the individual responses of a given basin to changes in the statistical properties of demand and supply and offers a valuable tool for the identification of policy strategies and adaptation measures." (Foti, R., et al., 2014, Climatic Change) (Published June 30, 2014)
Climate Change Topics: California: Statewide / Groundwater / Water supply, changes in supply, snowpack /
(Posted July 1, 2014)

 

San Mateo County Planners Grapple With Expected 3-Foot Sea Level Rise

News article San Mateo County Planners Grapple With Expected 3-Foot Sea Level Rise (Published June 27, 2014)
Source: CBS 5 (KPIX)
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 30, 2014)

 

U.S. drought could spark economic water warfare (Column)

News article U.S. drought could spark economic water warfare (Column) (Published June 26, 2014)
Source: Reuters
Climate Change Topics: Drought / Water-Supply Related Risks: Insurance Industry Responses /
(Posted June 30, 2014)

 

'Risky Business' Report Says Two Things about Water -- One Is Obvious, the Other Is Not

News article 'Risky Business' Report Says Two Things about Water -- One Is Obvious, the Other Is Not (Published June 26, 2014)
Source: Circle of Blue
Climate Change Topics: Agriculture / Drought / Energy management and conservation / Global issues, human impacts / Sea level rise / Temperature /
(Posted June 30, 2014)

 

Climate change: The peril is in all the things we don't know (Opinion)

News article Climate change: The peril is in all the things we don't know (Opinion) (Published June 25, 2014)
Source: Los Angeles Times
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted June 25, 2014)

 

Money men tally cost of climate change

News article Money men tally cost of climate change
Related Link: http://riskybusiness.org/
(Published June 24, 2014)
Source: Associated Press
Climate Change Topics: Agriculture / Drought / Flooding / Sea level rise / Temperature /
(Posted June 24, 2014)

 

Risky Business: The Economic Risks of Climate Change in the United States

Report Risky Business: The Economic Risks of Climate Change in the United States - "The American economy could face significant and widespread disruptions from climate change unless U.S. businesses and policymakers take immediate action to reduce climate risk. … The report … summarizes findings of an independent assessment of the impact of climate change at the county, state, and regional level, and shows that communities, industries, and properties across the U.S. face profound risks from climate change. The findings also show that the most severe risks can still be avoided through early investments in resilience, and through immediate action to reduce the pollution that causes global warming. The Risky Business report shows that two of the primary impacts of climate change -- extreme heat and sea level rise -- will disproportionately affect certain regions of the U.S., and pose highly variable risks across the nation. In the U.S. Gulf Coast, Northeast, and Southeast, for example, sea level rise and increased damage from storm surge are likely to lead to an additional $2 to $3.5 billion in property losses each year by 2030, with escalating costs in future decades. In interior states in the Midwest and Southwest, extreme heat will threaten human health, reduce labor productivity and strain electricity grids." (Published June 24, 2014)
Climate Change Topics: Agriculture / Flooding / Global issues, human impacts / Sea level rise / Temperature /
(Posted June 24, 2014)

 

Extreme Weather in the United States Linked to Wave-Like Wind Pattern Variations

News article Extreme Weather in the United States Linked to Wave-Like Wind Pattern Variations (Published June 23, 2014)
Source: Science World Report
Climate Change Topics: Precipitation, Extreme Weather /
(Posted June 23, 2014)

 

Extent of the rain-snow transition zone in the western U.S. under historic and projected climate

Report Extent of the rain-snow transition zone in the western U.S. under historic and projected climate - "This study investigates the extent of the rain-snow transition zone across the complex terrain of the western United States for both late 20th century climate and projected changes in climate by the mid-21st century. Observed and projected temperature and precipitation data at 4?km-resolution were used with an empirical probabilistic precipitation phase model to estimate and map the likelihood of snow versus rain occurrence. This approach identifies areas most likely to undergo precipitation phase change over the next half century. At broad scales, these projections indicate an average 30 percent decrease in areal extent of winter wet-day temperatures conducive to snowfall over the western United States. At higher resolution scales, this approach identifies existing and potential experimental sites best suited for research investigating the mechanisms linking precipitation phase change to a broad array of processes, such as shifts in rain-on-snow flood risk, timing of water resource availability, and ecosystem dynamics." (Klos, P. Z., et al., 2014, Geophysical Research Letters) (Published June 11, 2014)
Climate Change Topics: California: Statewide / Water supply, changes in supply, snowpack /
(Posted June 23, 2014)

 

How the insurance industry sees climate change (Opinion)

News article How the insurance industry sees climate change (Opinion) (Published June 17, 2014)
Source: Los Angeles Times
Climate Change Topics: Sea-Level and Flood Risks: FEMA or Insurance Industry Responses /
(Posted June 18, 2014)

 

California, Oregon, Washington and the Surging Sea: A Vulnerability Assessment with Projections for Sea Level Rise and Coastal Flood Risk

Report California, Oregon, Washington and the Surging Sea: A Vulnerability Assessment with Projections for Sea Level Rise and Coastal Flood Risk - Makes projections of future sea level rise which leads to an analysis of coastal flooding and the risk to people, property, and infrastructure on the West Coast. To be used with the online application Surging Seas (Climate Central) (Published June 10, 2014)
Climate Change Topics: California: Statewide / Flooding / Sea level rise /
(Posted June 17, 2014)

 

Vanishing water: an already strained water supply, threatened by climate change (Colorado River)

News article Vanishing water: an already strained water supply, threatened by climate change (Colorado River) (Published June 14, 2014)
Source: Desert Sun (MyDesert.com)
Climate Change Topics: Streamflow / Water supply, changes in supply, snowpack /
(Posted June 16, 2014)

 

Cities must prepare for climate change or get sued (Editorial)

News article Cities must prepare for climate change or get sued (Editorial) (Published June 14, 2014)
Source: San Francisco Chronicle
Climate Change Topics: Sea-Level and Flood Risks: FEMA or Insurance Industry Responses /
(Posted June 16, 2014)

 

Climate change would drown parts of San Mateo County (Opinion)

News article Climate change would drown parts of San Mateo County (Opinion) (Published June 14, 2014)
Source: San Francisco Chronicle
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 16, 2014)

 

Interactive Map: How Sea Level Rise Could Swamp Coastal Communities

News article Interactive Map: How Sea Level Rise Could Swamp Coastal Communities (Published June 13, 2014)
Source: KQED Radio
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 16, 2014)

 

California seeing hottest year on record thus far

News article California seeing hottest year on record thus far (Published June 13, 2014)
Source: San Francisco Chronicle
Climate Change Topics: California: Statewide / Temperature /
(Posted June 13, 2014)

 

When the sea levels rise in the Bay, where will it hurt in Oakland?

News article When the sea levels rise in the Bay, where will it hurt in Oakland? (Published June 13, 2014)
Source: Oakland Local
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 13, 2014)

 

How Earth avoided global warming, last time around

News article How Earth avoided global warming, last time around (Published June 11, 2014)
Source: Science Daily
Climate Change Topics: Greenhouse gas (GHG) increases / Greenhouse gas (GHG) reduction, mitigation /
(Posted June 13, 2014)

 

This Silicon Valley City Will Be Flooded Every Year as Sea Levels Rise (Foster City)

News article This Silicon Valley City Will Be Flooded Every Year as Sea Levels Rise (Foster City) (Published June 11, 2014)
Source: Yahoo News
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 11, 2014)

 

S.F. waterfront development must prepare for rising seas (Column)

News article S.F. waterfront development must prepare for rising seas (Column) (Published June 8, 2014)
Source: San Francisco Chronicle
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted June 9, 2014)

 

Climate Change Indicators in the United States, 2014

Report Climate Change Indicators in the United States, 2014 - "EPA's Climate Change Indicators in the United States, 2014, presents compelling evidence that the impacts of climate change are already occurring across the United States." The report uses 30 key indicators of climate change. (Published May 28, 2014)
Source: United States. Environmental Protection Agency
Climate Change Topics: Drought / Ecosystems, Habitat, Threatened Species / Global issues, human impacts / Greenhouse gas (GHG) increases / Precipitation, Extreme Weather / Sea and Polar ice / Sea level rise / Streamflow / Temperature / Water supply, changes in supply, snowpack /
(Posted June 6, 2014)

 

A precipitation shift from snow towards rain leads to a decrease in streamflow

Report A precipitation shift from snow towards rain leads to a decrease in streamflow - "In a warming climate, precipitation is less likely to occur as snowfall. A shift from a snow- towards a rain-dominated regime is currently assumed not to influence the mean streamflow significantly. Contradicting the current paradigm, we argue that mean streamflow is likely to reduce for catchments that experience significant reductions in the fraction of precipitation falling as snow. With more than one-sixth of the Earth’s population depending on meltwater for their water supply and ecosystems that can be sensitive to streamflow alterations, the socio-economic consequences of a reduction in streamflow can be substantial. By applying the Budyko water balance framework to catchments located throughout the contiguous United States we demonstrate that a higher fraction of precipitation falling as snow is associated with higher mean streamflow, compared to catchments with marginal or no snowfall. Furthermore, we show that the fraction of each year’s precipitation falling as snowfall has a significant influence on the annual streamflow within individual catchments. This study is limited to introducing these observations; process-based understanding at the catchment scale is not yet provided. Given the importance of streamflow for society, further studies are required to respond to the consequences of a temperature-induced precipitation shift from snow to rain." (Berghuijs, W. R., et al., 2014, Nature) (Published May 18, 2014)
Climate Change Topics: Streamflow / Water supply, changes in supply, snowpack /
(Posted June 6, 2014)

 

Southwest Climate and Environmental Information Collaborative (SCENIC)

Report Southwest Climate and Environmental Information Collaborative (SCENIC) - Look up current and historic climate data, such as temperature, precipitation, snowfall, pan evaporation. Use tools to display your data. Check the climate dashboard for current conditions regionally and nationally. (Southwest Climate Science Center) (Published )
Climate Change Topics: Drought / Models and Tools / Precipitation, Extreme Weather / Temperature /
(Posted June 6, 2014)

 

Next Steps for Managing Freshwater Resources in a Changing Climate

Report Next Steps for Managing Freshwater Resources in a Changing Climate - Follow-up to 2011 report advising the federal government on water data, vulnerability assessment, water use efficiency, integrated water resources management, and training and capacity building. (Published April 10, 2014)
Source: United States.
Climate Change Topics: Water utilities guidance /
(Posted June 6, 2014)

 

US Hottest Spots of Warming: Northeast, Southwest

News article US Hottest Spots of Warming: Northeast, Southwest (Published June 5, 2014)
Source: Associated Press
Climate Change Topics: Temperature /
(Posted June 5, 2014)

 

Linkages Between Arctic Warming and Mid-Latitude Weather Patterns: Summary of a Workshop

Report Linkages Between Arctic Warming and Mid-Latitude Weather Patterns: Summary of a Workshop - "A diverse array of experts examined linkages between a warming Arctic and mid-latitude weather patterns. The workshop included presentations from leading researchers representing a range of views on this topic. The workshop was organized to allow participants to take a global perspective and consider the influence of the Arctic in the context of forcing from other components of the climate system, such as changes in the tropics, ocean circulation, and mid-latitude sea surface temperature. This report discusses our current understanding of the mechanisms that link declines in Arctic sea ice cover, loss of high-latitude snow cover, changes in Arctic-region energy fluxes, atmospheric circulation patterns, and the occurrence of extreme weather events; possible implications of more severe loss of summer Arctic sea ice upon weather patterns at lower latitudes; major gaps in our understanding, and observational and/or modeling efforts that are needed to fill those gaps; and current opportunities and limitations for using Arctic sea ice predictions to assess the risk of temperature/precipitation anomalies and extreme weather events over northern continents." (Published June 2, 2014)
Source: National Academies
Climate Change Topics: Precipitation, Extreme Weather / Sea and Polar ice / Temperature / Water supply, changes in supply, snowpack /
(Posted June 4, 2014)

 

Combined Effects of Reservoir Operations and Climate Warming on the Flow Regime of Hydropower Bypass Reaches of California's Sierra Nevada

Report Combined Effects of Reservoir Operations and Climate Warming on the Flow Regime of Hydropower Bypass Reaches of California's Sierra Nevada - "Alterations to flow regimes from regulation and climatic change both affect the biophysical functioning of rivers over long time periods and large spatial areas. Historically, however, the effects of these flow alteration drivers have been studied separately. In this study, results from unregulated and regulated river management models were assessed to understand how flow regime alterations from river regulation differ under future climate conditions in the Sierra Nevada of California, USA. Four representative flow alteration metrics -- mean annual flow, low flow duration, centroid timing and mean weekly rate of decrease -- were calculated and statistically characterized under historical and future unregulated and regulated conditions over a 20-year period at each of the eight regulated river locations below dams across the Sierra Nevada. Future climatic conditions were represented by assuming an increase in air temperature of 6 degrees C above historical (1981-2000) air temperatures, with no change in other meteorological conditions. Results indicate that climate warming will measurably alter some aspects of the flow regime. By comparison, however, river regulation with business-as-usual operations will alter flow regimes much more than climate warming. Existing reservoirs can possibly be used to dampen the anticipated effects of climate warming through improved operations, though additional research is needed to identify the full suite of such possibilities." (Rheinheimer, D. E. and J. H. Viers, 2014, River Research and Applications) (Published March 24, 2014)
Source: University of California, Davis
Climate Change Topics: California: Statewide / Streamflow /
(Posted June 4, 2014)

 

Good possibility of El Niño, but no guarantees for rain

News article Good possibility of El Niño, but no guarantees for rain (Published June 3, 2014)
Source: KCBX radio
Climate Change Topics: California: Statewide / Water supply, changes in supply, snowpack /
(Posted June 3, 2014)

 

Historic EPA global warming rules: How will they affect California?

News article Historic EPA global warming rules: How will they affect California? (Published June 3, 2014)
Source: San Jose Mercury News
Climate Change Topics: California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted June 3, 2014)

 

Disappearing Arctic sea ice reduces available water in the American west

Report Disappearing Arctic sea ice reduces available water in the American west - "Recent decreases in Arctic sea ice cover and the probability of continued decreases have raised the question of how reduced Arctic sea ice cover will influence extrapolar climate. Using a fully coupled earth system model, we generate one possible future Arctic sea ice distribution. We use this “future” sea ice distribution and the corresponding sea surface temperatures (SSTs) to run a fixed SST and ice concentration experiment with the goal of determining direct climate responses to the reduction in Arctic sea ice that is projected to occur in the next 50 years. Our results indicate that future reductions in Arctic sea ice cover could significantly reduce available water in the American west and highlight the fact that the most severe impacts of future climate change will likely be at a regional scale." (Sewall, J. O. and L. C. Sloan, 2004, Geophysical Research Letters) (Published March 24, 2004)
Source: University of California, Santa Cruz
Climate Change Topics: Sea and Polar ice / Water supply, changes in supply, snowpack /
(Posted June 3, 2014)

 

Counting Each Drop: Corporate Concern Mounts About Water Supplies

News article Counting Each Drop: Corporate Concern Mounts About Water Supplies (Published June 2, 2014)
Source: New York Times
Climate Change Topics: Water-Supply Related Risks: Insurance Industry Responses /
(Posted June 2, 2014)

 

EPA proposes rule to cut carbon emissions

News article EPA proposes rule to cut carbon emissions (Published June 2, 2014)
Source: American Water Works Association
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted June 2, 2014)

 

EPA unveils far-reaching climate plan targeting power plants

News article EPA unveils far-reaching climate plan targeting power plants (Published June 2, 2014)
Source: Los Angeles Times
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted June 2, 2014)

 

EPA Proposes First Guidelines to Cut Carbon Pollution from Existing Power Plants; Clean Power Plan is flexible proposal to ensure a healthier environment, spur innovation and strengthen the economy

News article EPA Proposes First Guidelines to Cut Carbon Pollution from Existing Power Plants; Clean Power Plan is flexible proposal to ensure a healthier environment, spur innovation and strengthen the economy (Published June 2, 2014)
Source: U.S. Environmental Protection Agency
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted June 2, 2014)

 

How did Australian drylands cause record land carbon sink in 2011?

News article How did Australian drylands cause record land carbon sink in 2011? (Published May 27, 2014)
Source: Environmental Research Web
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted May 30, 2014)

 

Sunnyvale City Council adopts 222-page Climate Action Plan

News article Sunnyvale City Council adopts 222-page Climate Action Plan
Related Link: http://horizon2035.insunnyvale.com/
(Published May 29, 2014)
Source: Sunnyvale Sun
Climate Change Topics: California: Bay Area and Delta / Sample Climate Action Plans /
(Posted May 29, 2014)

 

MWD's Response to State's Drought and Challenges of Climate Change Adaptation

News article MWD's Response to State's Drought and Challenges of Climate Change Adaptation (Published May 28, 2014)
Source: Planning Report
Climate Change Topics: AB 32 / California: Statewide / Water supply, changes in supply, snowpack /
(Posted May 29, 2014)

 

Buying Insurance Against Climate Change (Opinion)

News article Buying Insurance Against Climate Change (Opinion) (Published May 25, 2014)
Source: New York Times
Climate Change Topics: Sea-Level and Flood Risks: FEMA or Insurance Industry Responses /
(Posted May 27, 2014)

 

Climate Change Accelerates Hybridization between Native and Invasive Species of Trout

News article Climate Change Accelerates Hybridization between Native and Invasive Species of Trout (Published May 25, 2014)
Source: U.S. Geological Survey
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted May 27, 2014)

 

Green Works for Climate Resilience: A Community Guide to Climate Planning

Report Green Works for Climate Resilience: A Community Guide to Climate Planning - "Green Works for Climate Resilience outlines the nature-based approaches that communities can use to prepare for and respond to the following climate impacts: Coastal Impacts: Sea Level Rise, Coastal Flooding, and Erosion; Drought and Increasing Aridity; Extreme Heat/Urban Heat Island Effect; Inland Urban Flooding and Stormwater Management; Inland Wetland and Waterway Management; Landscape and Habitat Change." "Nature-based approaches rely on enhancing, protecting, and restoring natural infrastructure, such as coastal wetlands, parks, and tree canopies, as well as features that mimic natural processes, such as rain gardens or green roofs that are used in low-impact development (LID)." (National Wildlife Federation) (Published April 17, 2014)
Climate Change Topics: Adaptation / Drought / Ecosystem Services and Climate Change / Flooding / Sea level rise / Temperature /
(Posted May 27, 2014)

 

Different types of El Nino have different effects on global temperature: May explain slowdowns in global warming

News article Different types of El Nino have different effects on global temperature: May explain slowdowns in global warming (Published May 19, 2014)
Source: Science Daily
Climate Change Topics: Precipitation, Extreme Weather / Temperature /
(Posted May 22, 2014)

 

Rising sea levels demand Bay Area balance profit and the future of the waterfront

News article Rising sea levels demand Bay Area balance profit and the future of the waterfront (Published May 21, 2014)
Source: Oakland Tribune
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted May 21, 2014)

 

Climate warming mediates negative impacts of rapid pond drying for three amphibian species

Report Climate warming mediates negative impacts of rapid pond drying for three amphibian species - "Anthropogenic climate change will present both opportunities and challenges for pool-breeding amphibians. Increased water temperature and accelerated drying may directly affect larval growth, development, and survival, yet the combined effects of these processes on larvae with future climate change remain poorly understood. Increased surface temperatures are projected to warm water and decrease water inputs, leading to earlier and faster wetland drying. So it is often assumed that larvae will experience negative synergistic impacts with combined warming and drying. However, an alternative hypothesis is that warming-induced increases in metabolic rate and aquatic resource availability might compensate for faster drying rates, generating antagonistic larval responses. … Warming and drying acted additively on time to and size at metamorphosis. These nonsynergistic impacts may result from cotolerance of larvae to warming and drying, as well as warming helping to offset negative impacts of drying. Our results indicate that combined pool warming and drying may not always be harmful for larval amphibians. However, they also demonstrate that antagonistic responses are difficult to predict, which poses a challenge to proactive conservation and management. Our study highlights the importance of considering the nature of multiple stressor interactions as amphibians are exposed to an increasing number of anthropogenic threats." (O'Regan, S. M., et al., 2014, Ecology) (Published April 10, 2014)
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted May 21, 2014)

 

Climate-Smart Conservation: Putting Adaptation Principles into Practice

Report Climate-Smart Conservation: Putting Adaptation Principles into Practice - "Offers guidance for designing and carrying out conservation in the face of a rapidly changing climate. Addressing the growing threats brought about or accentuated by rapid climate change requires a fundamental shift in the practice of natural resource management and conservation. Traditionally, conservationists have focused their efforts on protecting and managing systems to maintain their current state, or to restore degraded systems back to a historical state regarded as more desirable. Conservation planners and practitioners will need to adopt forward-looking goals and implement strategies specifically designed to prepare for and adjust to current and future climatic changes, and the associated impacts on natural systems and human communities -- an emerging discipline known as climate change adaptation." (National Wildlife Federation and other nonprofit and government agencies) (Published April 25, 2014)
Climate Change Topics: Adaptation / Ecosystems, Habitat, Threatened Species /
(Posted May 21, 2014)

 

What Climate Change Will Do to Your City

News article What Climate Change Will Do to Your City (Published May 20, 2014)
Source: Slate.com
Climate Change Topics: Sea level rise /
(Posted May 20, 2014)

 

Cities that depend on snowmelt for water could face problems, study suggests

News article Cities that depend on snowmelt for water could face problems, study suggests (Published May 19, 2014)
Source: Christian Science Monitor
Climate Change Topics: Streamflow / Water supply, changes in supply, snowpack /
(Posted May 20, 2014)

 

Governor Jerry Brown calls for action on climate change, irks protesters over fracking

News article Governor Jerry Brown calls for action on climate change, irks protesters over fracking (Published May 20, 2014)
Source: San Jose Mercury News
Climate Change Topics: Politics, laws, United Nations, etc. /
(Posted May 20, 2014)

 

Climate change: California cities could be barred from renewable power deals (Opinion)

News article Climate change: California cities could be barred from renewable power deals (Opinion) (Published May 20, 2014)
Source: San Jose Mercury News
Climate Change Topics: California: Statewide / Energy management and conservation /
(Posted May 20, 2014)

 

The State of Rain

News article The State of Rain (Published May 14, 2014)
Source: U.S. Geological Survey
Climate Change Topics: Drought / Precipitation, Extreme Weather / Water supply, changes in supply, snowpack /
(Posted May 20, 2014)

 

Studies: Wildfires worse due to global warming

News article Studies: Wildfires worse due to global warming (Published May 19, 2014)
Source: Associated Press
Climate Change Topics: Wildfires /
(Posted May 19, 2014)

 

NASA spots worrisome Antarctic ice sheet melt

News article NASA spots worrisome Antarctic ice sheet melt (Published May 12, 2014)
Source: Sacramento Bee
Climate Change Topics: Sea and Polar ice / Sea level rise /
(Posted May 16, 2014)

 

Irreversible collapse of Antarctic glaciers has begun, studies say

News article Irreversible collapse of Antarctic glaciers has begun, studies say (Published May 13, 2014)
Source: Los Angeles Times
Climate Change Topics: Sea and Polar ice /
(Posted May 13, 2014)

 

What Does Climate Change in California Look Like?

News article What Does Climate Change in California Look Like? (Published May 12, 2014)
Source: KQED Radio
Climate Change Topics: Agriculture / California: Statewide / Sea level rise / Temperature / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 13, 2014)

 

Scientists Warn of Rising Oceans From Polar Melt

News article Scientists Warn of Rising Oceans From Polar Melt (Published May 13, 2014)
Source: New York Times
Climate Change Topics: Sea and Polar ice / Sea level rise /
(Posted May 13, 2014)

 

Q&A: Bay Area Needs to Organize to Fight Sea-Level Rise, SPUR Researcher Says

News article Q&A: Bay Area Needs to Organize to Fight Sea-Level Rise, SPUR Researcher Says (Published March 24, 2014)
Source: San Francisco Public Press
Climate Change Topics: California: Bay Area and Delta / Sea level rise /
(Posted May 9, 2014)

 

Cupertino talks on climate change heat up

News article Cupertino talks on climate change heat up (Published May 9, 2014)
Source: Cupertino Courier
Climate Change Topics: California: Bay Area and Delta / Sample Climate Action Plans /
(Posted May 9, 2014)

 

No denying it: Climate change is here -- and now (Editorial)

News article No denying it: Climate change is here -- and now (Editorial) (Published May 9, 2014)
Source: Sacramento Bee
Climate Change Topics: AB 32 / Agriculture / California: Statewide / Drought / Greenhouse gas (GHG) reduction, mitigation / Water quality / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 9, 2014)

 

2013 Highlights of Progress: Responses to Climate Change by the National Water Program

Report 2013 Highlights of Progress: Responses to Climate Change by the National Water Program - EPA's work in water infrastructure, watersheds and wetlands, coastal waters, and water quality. (Published April 24, 2014)
Source: United States. Environmental Protection Agency
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Water quality / Water supply, changes in supply, snowpack /
(Posted May 9, 2014)

 

"National Climate Change Viewer" Enables Focus on Future Climate-Driven Changes for U.S. Watersheds at Local Levels

News article "National Climate Change Viewer" Enables Focus on Future Climate-Driven Changes for U.S. Watersheds at Local Levels
Related Link: http://www.usgs.gov/climate_landuse/clu_rd/nccv.asp
(Published May 8, 2014)
Source: U.S. Dept. of the Interior
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Temperature / Water supply, changes in supply, snowpack /
(Posted May 8, 2014)

 

Sea level rise adaptation: Emerging lessons for local policy development

Report Sea level rise adaptation: Emerging lessons for local policy development - "Many coastal communities across the United States are beginning to plan for climate-related sea level rise. While impacts and solutions will vary with local conditions, jurisdictions which have begun this process seem to pass through three common stages when developing policy for local sea level rise adaptation: l) building awareness about local sea level rise threats, 2) undertaking analyses of local vulnerabilities, and 3) developing plans and policies to deal with these vulnerabilities. The purpose of this paper is to help advance community dialogue and further inform local decision-makers about key elements and steps for addressing climate-related sea level rise. It summarizes the results of a project the Marine Policy Institute (MPI) undertook during 2011-12 to review experiences from fourteen U.S. coastal jurisdictions representing a variety of city, county, and state efforts with sea level adaptation. There are many more initiatives underway than those reflected in this sample, but the 'focus jurisdictions' [including San Francisco Bay Area] were selected because of the extensive information publicly available on their experiences and lessons being learned that could provide insights for coastal communities, especially in Southwest Florida." (Mote Marine Laboratory) (Published December 19, 2013)
Climate Change Topics: Adaptation / Sea level rise /
(Posted May 8, 2014)

 

National Climate Change Viewer

Report National Climate Change Viewer - "The NCCV allows users to visualize projected changes in climate (maximum and minimum air temperature and precipitation) and the water balance (snow water equivalent, runoff, soil water storage and evaporative deficit) for any state, county and USGS Hydrologic Units (HUC)." Different climate models can be specified as well. (Published May 8, 2014)
Source: United States. Geological Survey
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Temperature / Water supply, changes in supply, snowpack /
(Posted May 8, 2014)

 

Global-warming threat to West spelled out in report

News article Global-warming threat to West spelled out in report (Published May 7, 2014)
Source: San Francisco Chronicle
Climate Change Topics: Agriculture / California: Statewide / Flooding / Sea level rise / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 7, 2014)

 

Southwest faces even hotter, drier conditions

News article Southwest faces even hotter, drier conditions (Published May 6, 2014)
Source: Associated Press
Climate Change Topics: Agriculture / Temperature / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 7, 2014)

 

Climate change is already affecting all of U.S., report says

News article Climate change is already affecting all of U.S., report says
Related Link: http://nca2014.globalchange.gov/
(Published May 7, 2014)
Source: Los Angeles Times
Climate Change Topics: Drought / Flooding / Greenhouse gas (GHG) reduction, mitigation / Precipitation, Extreme Weather / Temperature / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 7, 2014)

 

U.S. Climate Has Already Changed, Study Finds, Citing Heat and Floods

News article U.S. Climate Has Already Changed, Study Finds, Citing Heat and Floods (Published May 7, 2014)
Source: New York Times
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Flooding / Precipitation, Extreme Weather / Sea level rise / Temperature / Water supply, changes in supply, snowpack / Wildfires /
(Posted May 7, 2014)

 

National Climate Assessment: Who conducted the study, and how

News article National Climate Assessment: Who conducted the study, and how (Published May 7, 2014)
Source: Associated Press
Climate Change Topics: Politics, laws, United Nations, etc. / Research /
(Posted May 7, 2014)

 

National Climate Assessment: Climate Change Pushing U.S. Toward Water Extremes

News article National Climate Assessment: Climate Change Pushing U.S. Toward Water Extremes (Published May 7, 2014)
Source: Circle of Blue
Climate Change Topics: Drought / Precipitation, Extreme Weather / Sea level rise / Water supply, changes in supply, snowpack /
(Posted May 7, 2014)

 

For Obama, a renewed focus on climate

News article For Obama, a renewed focus on climate (Published May 6, 2014)
Source: Washington Post
Climate Change Topics: Politics, laws, United Nations, etc. /
(Posted May 6, 2014)

 

Federal report: Warming disrupts Americans' lives

News article Federal report: Warming disrupts Americans' lives (Published May 6, 2014)
Source: KTVU
Climate Change Topics: Drought / Flooding / Global issues, human impacts / Greenhouse gas (GHG) reduction, mitigation / Precipitation, Extreme Weather / Temperature /
(Posted May 6, 2014)

 

Climate change assessment paints stark picture of potential damage

News article Climate change assessment paints stark picture of potential damage
Related Link: http://nca2014.globalchange.gov/
(Published May 6, 2014)
Source: Los Angeles Times
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation / Precipitation, Extreme Weather / Temperature /
(Posted May 6, 2014)

 

White House Releases National Climate Assessment

News article White House Releases National Climate Assessment (Published May 6, 2014)
Source: U.S. National Oceanic and Atmospheric Administration
Climate Change Topics: Global issues, human impacts /
(Posted May 6, 2014)

 

Final fed climate report will present dire picture

News article Final fed climate report will present dire picture (Published May 6, 2014)
Source: Associated Press
Climate Change Topics: Drought / Precipitation, Extreme Weather / Temperature /
(Posted May 6, 2014)

 

Climate Change Impacts in the United States: The Third National Climate Assessment

Report Climate Change Impacts in the United States: The Third National Climate Assessment - Comprehensive report on projected effects of climate change by sectors (such as water) and regions. Produced by a team of 300 experts with a 60-member advisory committee. (Published May 6, 2014)
Source: United States. Global Change Research Program
Climate Change Topics: Agriculture / Ecosystems, Habitat, Threatened Species / Energy management and conservation / Global issues, human impacts / Greenhouse gas (GHG) increases / Precipitation, Extreme Weather / Sea level rise / Temperature / Water supply, changes in supply, snowpack /
(Posted May 6, 2014)

 

Climate change is clear and present danger, says landmark US report

News article Climate change is clear and present danger, says landmark US report (Published May 5, 2014)
Source: Guardian (U.K.)
Climate Change Topics: Agriculture / Precipitation, Extreme Weather / Temperature /
(Posted May 5, 2014)

 

Amphibians in a vice: Climate change robs frogs, salamanders of refuge

News article Amphibians in a vice: Climate change robs frogs, salamanders of refuge (Published May 1, 2014)
Source: Science Daily
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted May 2, 2014)

 

Climate change, El Niño, cold winters, and California's drought

News article Climate change, El Niño, cold winters, and California's drought (Published April 27, 2014)
Source: Ars Technica
Climate Change Topics: California: Statewide / Drought / Precipitation, Extreme Weather /
(Posted May 1, 2014)

 

Wetlands likely to blame for greenhouse gas increases (methane)

News article Wetlands likely to blame for greenhouse gas increases (methane) (Published April 28, 2014)
Source: Phys.Org
Climate Change Topics: Greenhouse gas (GHG) increases /
(Posted April 28, 2014)

 

A Vision for Future Observations for Western U.S. Extreme Precipitation and Flooding

Report A Vision for Future Observations for Western U.S. Extreme Precipitation and Flooding - "Recent and historical events illustrate the vulnerabilities of the U.S. west to extremes in precipitation that result from a range of meteorological phenomena. This vision provides an approach to mitigating impacts of such weather and water extremes that is tailored to the unique meteorological conditions and user needs of the Western U.S. in the 21st Century. It includes observations for tracking, predicting, and managing the occurrence and impacts of major storms and is informed by a range of user-requirements, workshops, scientific advances, and technological demonstrations. The vision recommends innovations and enhancements to existing monitoring networks for rain, snow, snowmelt, flood, and their hydrometeorological precursor conditions, including radars to monitor winds aloft and precipitation, soil moisture sensors, stream gages, and SNOTEL enhancements, as well as entirely new observational tools. Key limitations include monitoring the fuel for heavy precipitation, storms over the eastern Pacific, precipitation distributions, and snow and soil moisture conditions. This article presents motivation and context, and describes key components, an implementation strategy, and expected benefits. This document supports a Resolution of the Western States Water Council for addressing extreme events." (Ralph, F. M., 2014, Journal of Contemporary Water Research and Education) (Published April 25, 2014)
Climate Change Topics: Flooding / Precipitation, Extreme Weather /
(Posted April 28, 2014)

 

Snowmelt timing alters shallow but not deep soil moisture in the Sierra Nevada

Report Snowmelt timing alters shallow but not deep soil moisture in the Sierra Nevada - "Roughly one-third of the Earth's land surface is seasonally covered by snow. In many of these ecosystems, the spring snowpack is melting earlier due to climatic warming and atmospheric dust deposition, which could greatly modify soil water resources during the growing season. Though snowmelt timing is known to influence soil water availability during summer, there is little known about the depth of the effects and how long the effects persist. We therefore manipulated the timing of seasonal snowmelt in a high-elevation mixed-conifer forest in a Mediterranean climate during consecutive wet and dry years. The snow-all-gone (SAG) date was advanced by 6 days in the wet year and 3 days in the dry year using black sand to reduce the snow surface albedo. To maximize variation in snowmelt timing, we also postponed the SAG date by 8 days in the wet year and 16 days in the dry year using white fabric to shade the snowpack from solar radiation. We found that deeper soil water (30–60 cm) did not show a statistically significant response to snowmelt timing. Shallow soil water (0–30 cm), however, responded strongly to snowmelt timing. The drying effect of accelerated snowmelt lasted 2 months in the 0–15 cm depth and at least 4 months in the 15–30 cm depth. Therefore, the legacy of snowmelt timing on soil moisture can persist through dry periods, and continued earlier snowmelt due to climatic warming and windblown dust could reduce near-surface water storage and availability to plants and soil biota." (Blankinship, J. C., et al., 2014, Water Resources Research) (Published February 20, 2014)
Climate Change Topics: California: Statewide / Water supply, changes in supply, snowpack /
(Posted April 25, 2014)

 

Study links California drought to global warming

News article Study links California drought to global warming (Published April 24, 2014)
Source: Associated Press
Climate Change Topics: California: Statewide / Drought /
(Posted April 24, 2014)

 

Climate changes visible by ZIP code with new online tools

News article Climate changes visible by ZIP code with new online tools (Published April 21, 2014)
Source: USA Today
Climate Change Topics: Drought / Ecosystems, Habitat, Threatened Species / Models and Tools / Sea level rise / Water supply, changes in supply, snowpack /
(Posted April 24, 2014)

 

Warm U.S. west, cold east: a 4,000-year pattern

News article Warm U.S. west, cold east: a 4,000-year pattern (Published April 22, 2014)
Source: Environmental Research Web
Climate Change Topics: Drought / Temperature /
(Posted April 23, 2014)

 

A probabilistic framework for assessing vulnerability to climate variability and change: the case of the US water supply system

Report A probabilistic framework for assessing vulnerability to climate variability and change: the case of the US water supply system - "We introduce a probabilistic framework for vulnerability analysis and use it to quantify current and future vulnerability of the US water supply system. We also determine the contributions of hydro-climatic and socio-economic drivers to the changes in projected vulnerability. For all scenarios and global climate models examined, the US Southwest including California and the southern Great Plains was consistently found to be the most vulnerable. For most of the US, the largest contributions to changes in vulnerability come from changes in supply. However, for some areas of the West changes in vulnerability are caused mainly by changes in demand. These changes in supply and demand result mainly from changes in evapotranspiration rather than from changes in precipitation. Importantly, changes in vulnerability from projected changes in the standard deviations of precipitation and evapotranspiration are of about the same magnitude or larger than those from changes in the corresponding means over most of the US, except in large areas of the Great Plains, in central California and southern and central Texas." (Foti, R., et al., 2014, Climatic Change) (Published April 17, 2014)
Climate Change Topics: Water supply, changes in supply, snowpack / Water utilities guidance /
(Posted April 22, 2014)

 

Bombshell: Study Ties Epic California Drought, 'Frigid East' To Manmade Climate Change

News article Bombshell: Study Ties Epic California Drought, 'Frigid East' To Manmade Climate Change (Published April 15, 2014)
Source: Think Progress
Climate Change Topics: California: Statewide / Drought /
(Posted April 17, 2014)

 

Probable causes of the abnormal ridge accompanying the 2013-14 California drought: ENSO precursor and anthropogenic warming footprint

Report Probable causes of the abnormal ridge accompanying the 2013-14 California drought: ENSO precursor and anthropogenic warming footprint - "The 2013-14 California drought was accompanied by an anomalous high-amplitude ridge system. The anomalous ridge was investigated using reanalysis data and the Community Earth System Model (CESM). It was found that the ridge emerged from continual sources of Rossby wave energy in the western North Pacific starting in late summer, and subsequently intensified into winter. The ridge generated a surge of wave energy downwind and deepened further the trough over the northeast U.S., forming a dipole. The dipole and associated circulation pattern is not linked directly with either ENSO or Pacific Decadal Oscillation; instead it is correlated with a type of ENSO precursor. The connection between the dipole and ENSO precursor has become stronger since the 1970s, and this is attributed to increased GHG loading as simulated by the CESM. Therefore, there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013-14, the associated drought and its intensity." (Wang, S.-Y. Simon, et al. 2014, Geophysical Research Letters) (Published April 14, 2014)
Climate Change Topics: California: Statewide / Drought /
(Posted April 16, 2014)

 

Could Geo-Engineering Cool Our Warming Planet?

News article Could Geo-Engineering Cool Our Warming Planet? (Published April 15, 2014)
Source: KQED Radio
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted April 15, 2014)

 

NOAA's Weather and Climate Toolkit

Report NOAA's Weather and Climate Toolkit - "The WCT allows the visualization and data export of weather and climate data, including Radar, Satellite and Model data. The WCT also provides access to weather/climate web services provided from NCDC and other organizations. The WCT provides tools for background maps, animations and basic filtering. The export of images and movies is provided in multiple formats" (Published )
Source: United States. National Oceanic and Atmospheric Administration
Climate Change Topics: Models and Tools /
(Posted April 15, 2014)

 

Cost of fighting warming 'modest' (IPCC)

News article Cost of fighting warming 'modest' (IPCC)
Related Link: http://mitigation2014.org/report
(Published April 14, 2014)
Source: San Jose Mercury News
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted April 14, 2014)

 

IPCC: greenhouse gas emissions have risen to 'unprecedented levels'

News article IPCC: greenhouse gas emissions have risen to 'unprecedented levels' (Published April 13, 2014)
Source: Environmental Research Web
Climate Change Topics: Greenhouse gas (GHG) increases /
(Posted April 14, 2014)

 

Climate Change 2014: Mitigation of Climate Change

Report Climate Change 2014: Mitigation of Climate Change - "Provides a comprehensive assessment of all relevant options for mitigating climate change through limiting or preventing greenhouse gas emissions, as well as activities that remove them from the atmosphere." (Published April 13, 2014)
Source: Intergovernmental Panel on Climate Change (IPCC)
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted April 14, 2014)

 

Soil Science May Be Important Key to Tackling Climate Change

News article Soil Science May Be Important Key to Tackling Climate Change (Published April 11, 2014)
Source: KQED Radio
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted April 11, 2014)

 

Why California's Drought Isn't Going Anywhere

News article Why California's Drought Isn't Going Anywhere (Published April 9, 2014)
Source: Climate Central
Climate Change Topics: California: Statewide / Drought /
(Posted April 9, 2014)

 

Population Growth and Climate Change Will Radically Alter California's Largest Watershed (Central Valley)

News article Population Growth and Climate Change Will Radically Alter California's Largest Watershed (Central Valley) (Published April 7, 2014)
Source: Circle of Blue
Climate Change Topics: California: Statewide / Drought / Water supply, changes in supply, snowpack /
(Posted April 8, 2014)

 

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