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Climate Change Blog

 

Oh great -- scientists just confirmed a key new source of greenhouse gases

News article Oh great -- scientists just confirmed a key new source of greenhouse gases (Published September 29, 2016)
Source: Washington Post
Climate Change Topics: Dams and reservoirs /
(Posted September 29, 2016)

 

The World's Water Reservoirs Produce More Greenhouse Gas Than All Of Canada

News article The World's Water Reservoirs Produce More Greenhouse Gas Than All Of Canada (Published September 28, 2016)
Source: Popular Science
Climate Change Topics: Dams and reservoirs /
(Posted September 28, 2016)

 

Mission Bay may need tidal barriers, huge levees as sea rises

News article Mission Bay may need tidal barriers, huge levees as sea rises (Published September 27, 2016)
Source: San Francisco Chronicle
Climate Change Topics: California: Bay Area and Delta / Flooding / Sea level rise /
(Posted September 27, 2016)

 

Hayward area marshlands endangered by climate change: Permit delays inhibiting key levee fixes, park leaders say

News article Hayward area marshlands endangered by climate change: Permit delays inhibiting key levee fixes, park leaders say (Published September 23, 2016)
Source: East Bay Times
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted September 23, 2016)

 

Atmospheric rivers come into focus with high-res climate model

News article Atmospheric rivers come into focus with high-res climate model (Published September 19, 2016)
Source: Science Daily
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather /
(Posted September 21, 2016)

 

Extreme hydrological changes in the southwestern US drive reductions in water supply to Southern California by mid century

Report Extreme hydrological changes in the southwestern US drive reductions in water supply to Southern California by mid century - "The Southwestern United States has a greater vulnerability to climate change impacts on water security due to a reliance on snowmelt driven imported water. The State of California, which is the most populous and agriculturally productive in the United States, depends on an extensive artificial water storage and conveyance system primarily for irrigated agriculture, municipal and industrial supply and hydropower generation. Here we take an integrative high-resolution ensemble modeling approach to examine near term climate change impacts on all imported and local sources of water supply to Southern California. While annual precipitation is projected to remain the same or slightly increase, rising temperatures result in a shift towards more rainfall, reduced cold season snowpack and earlier snowmelt. Associated with these hydrological changes are substantial increases in the frequency and the intensity of both drier conditions and flooding events. The 50 year extreme daily maximum precipitation and runoff events are 1.5–6 times more likely to occur depending on the water supply basin. Simultaneously, a clear deficit in total annual runoff over mountainous snow generating regions like the Sierra Nevada is projected. On one hand, the greater probability of drought decreases imported water supply availability. On the other hand, earlier snowmelt and significantly stronger winter precipitation events pose increased flood risk requiring water releases from control reservoirs, which may potentially decrease water availability outside of the wet season. Lack of timely local water resource expansion coupled with projected climate changes and population increases may leave the area in extended periods of shortages." (Pagan, B., et al., 2016, Environmental Research Letters) (Published September 21, 2016)
Climate Change Topics: California: Statewide / Flooding / Precipitation, Extreme Weather / Water supply, changes in supply, snowpack /
(Posted September 21, 2016)

 

Think California's current drought is bad? Past incarnations have lasted hundreds of years

News article Think California's current drought is bad? Past incarnations have lasted hundreds of years (Published September 20, 2016)
Source: Washington Post
Climate Change Topics: California: Statewide / Drought /
(Posted September 20, 2016)

 

Climate Change Analysis on Extreme Precipitation over Three Watersheds in Northern California Based on 137-Year Long-Term Dynamical Downscaling

Report Climate Change Analysis on Extreme Precipitation over Three Watersheds in Northern California Based on 137-Year Long-Term Dynamical Downscaling - "Long-term historical precipitation over Northern California was reconstructed for 137 water years from October, 1871 through September, 2008 by dynamical downscaling based on NOAA Twentieth Century Reanalysis version 2 (20CRv2). The annual maximum values of 6-, 12-, 24-, 48-, 72-, and 96-hour basin-average precipitation were obtained from the reconstructed results for three watersheds in Northern California; American River watershed, Yuba River watershed, and Upper Feather River watershed. The reconstructed results for 137 water years are long enough to conduct a moving window analysis. Then, the moving average of annual maximum basin-average precipitation for each duration is calculated based on a 50-year moving window to analyze the trend of annual maximum values of basin-average precipitation. The analysis shows a clear upward trend for the 50-year moving average over all the three watersheds." (Ishida, K., et al., 2015, World Environmental and Water Resources Congress) (Published May 21, 2015)
Source: University of California, Davis
Climate Change Topics: California: Statewide / Precipitation, Extreme Weather /
(Posted September 20, 2016)

 

Will climate change make California's droughts worse? A mountain lake offers clues

News article Will climate change make California's droughts worse? A mountain lake offers clues (Published September 16, 2016)
Source: Los Angeles Times
Climate Change Topics: California: Statewide / Drought /
(Posted September 19, 2016)

 

Atmospheric river landfall-latitude changes in future climate simulations

Report Atmospheric river landfall-latitude changes in future climate simulations - "The latitude of landfall for atmospheric rivers (ARs) is examined in the fully coupled half-degree version of the Community Climate System Model, version 4 (CCSM4) for warm future climate simulations. Two regions are examined: U.S. West Coast/North Pacific Ars and United Kingdom/North Atlantic Ars. Changes in AR landfall-latitude reflect changes in the atmospheric steering flow. West Coast U.S. Ars are projected to push equatorward in response to the subtropical jet climate change. UK AR response is dominated by eddy-driven jets and is seasonally dependent. UK simulated AR response is modest in the winter with the largest relative changes occurring in the seasonal transition months. Precipitation associated with Ars is also projected to increase in intensity under global warming. CCSM4 projects a marked shift to higher rainfall rates for Southern California. Small to modest rainfall rates may increase for all UK latitudes, for the Pacific Northwest, and central and northern California." (Shields, C. A. and J. T. Kiehl, 2016, Geophysical Research Letters) (Published September 13, 2016)
Climate Change Topics: California: Statewide / Precipitation, Extreme Weather /
(Posted September 19, 2016)

 

Outdated FEMA Flood Maps Don't Account For Climate Change

News article Outdated FEMA Flood Maps Don't Account For Climate Change (Published September 15, 2016)
Source: National Public Radio (NPR)
Climate Change Topics: Flooding /
(Posted September 15, 2016)

 

Global warming could make the drought last for a century, says UCLA study

News article Global warming could make the drought last for a century, says UCLA study
Related Link: http://www.nature.com/articles/srep33325
(Published September 15, 2016)
Source: San Gabriel Valley Tribune
Climate Change Topics: California: Statewide / Drought /
(Posted September 15, 2016)

 

Jerry Brown signs funding bill amid push to extend cap and trade

News article Jerry Brown signs funding bill amid push to extend cap and trade (Published September 15, 2016)
Source: Sacramento Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted September 15, 2016)

 

Green Infrastructure and Climate Change: Collaborating to Improve Community Resiliency

Report Green Infrastructure and Climate Change: Collaborating to Improve Community Resiliency - "In 2015, EPA convened charrettes, or intensive planning sessions, in four cities: Albuquerque, Grand Rapids, Los Angeles, and New Orleans, to explore the ways in which green infrastructure could help cities become more resilient to climate change." In Los Angeles, drought and watershed management were studied. In Albuquerque, flooding and water supply. (Published August 22, 2016)
Source: United States. Environmental Protection Agency
Climate Change Topics: Drought / Flooding / Water supply, changes in supply, snowpack /
(Posted September 15, 2016)

 

LOCA Statistical Downscaling (Localized Constructed Analogs)

Report LOCA Statistical Downscaling (Localized Constructed Analogs) - "LOCA is a statistical downscaling technique that uses past history to add improved fine-scale detail to global climate models. We have used LOCA to downscale 32 global climate models from the CMIP5 archive at a 1/16th degree spatial resolution, covering North America from central Mexico through Southern Canada. The historical period is 1950-2005, and there are two future scenarios available: RCP 4.5 and RCP 8.5 over the period 2006-2100 (although some models stop in 2099). The variables currently available are daily minimum and maximum temperature, and daily precipitation. Over the next year we will begin running the VIC hydrological model with the downscaled data, which will give many more variables, such as snow cover, soil moisture, runoff, and humidity, all at a 1/16th degree spatial resolution on a daily timescale." (Published September 12, 2016)
Source: United States. Geological Survey
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Temperature / Water supply, changes in supply, snowpack /
(Posted September 15, 2016)

 

Simulating the Pineapple Express in the half degree Community Climate System Model, CCSM4

Report Simulating the Pineapple Express in the half degree Community Climate System Model, CCSM4 - "Atmospheric rivers are recognized as major contributors to the poleward transport of water vapor. Upon reaching land, these phenomena also play a critical role in extreme precipitation and flooding events. The Pineapple Express (PE) is defined as an atmospheric river extending out of the deep tropics and reaching the west coast of North America. Community Climate System Model (CCSM4) high-resolution ensemble simulations for the twentieth and 21st centuries are diagnosed to identify the PE. Analysis of the twentieth century simulations indicated that the CCSM4 accurately captures the spatial and temporal climatology of the PE. Analysis of the end 21st century simulations indicates a significant increase in storm duration and intensity of precipitation associated with landfall of the PE. Only a modest increase in the number of atmospheric rivers of a few percent is projected for the end of 21st century." (Shields, C. A. and J. T. Kiehl, 2016, Geophysical Research Letters) (Published August 16, 2016)
Climate Change Topics: California: Statewide / Precipitation, Extreme Weather /
(Posted September 15, 2016)

 

A spatially distributed model for assessment of the effects of changing land use and climate on urban stream quality

Report A spatially distributed model for assessment of the effects of changing land use and climate on urban stream quality - "While the effects of land use change in urban areas have been widely examined, the combined effects of climate and land use change on the quality of urban and urbanizing streams have received much less attention. We describe a modelling framework that is applicable to the evaluation of potential changes in urban water quality and associated hydrologic changes in response to ongoing climate and landscape alteration. The grid-based spatially distributed model, Distributed Hydrology Soil Vegetation Model-Water Quality (DHSVM-WQ), is an outgrowth of DHSVM that incorporates modules for assessing hydrology and water quality in urbanized watersheds at a high-spatial and high-temporal resolution. DHSVM-WQ simulates surface run-off quality and in-stream processes that control the transport of non-point source pollutants into urban streams. We configure DHSVM-WQ for three partially urbanized catchments in the Puget Sound region to evaluate the water quality responses to current conditions and projected changes in climate and/or land use over the next century. Here, we focus on total suspended solids (TSS) and total phosphorus (TP) from non-point sources (run-off), as well as stream temperature. . . . Our results show that urbanization has a much greater effect than climate change on both the magnitude and seasonal variability of streamflow, TSS and TP loads largely because of substantially increased streamflow and particularly winter flow peaks. Water temperature is more sensitive to climate warming scenarios than to urbanization and precipitation changes. Future urbanization and climate change together are predicted to significantly increase annual mean streamflow (up to 55%), water temperature (up to 1.9 degrees C), TSS load (up to 182%) and TP load (up to 74%)." (Sun, N., et al., 2016, Hydrological Processes) (Published August 22, 2016)
Climate Change Topics: Streamflow / Water quality /
(Posted September 15, 2016)

 

How Climate Change Mitigation and Energy Choices Affect Water (Opinion)

News article How Climate Change Mitigation and Energy Choices Affect Water (Opinion) (Published September 14, 2016)
Source: Water Deeply
Climate Change Topics: Energy management and conservation / Renewable energy / Water utilities guidance /
(Posted September 14, 2016)

 

Sea-Level Rise and U.S. Coasts: Science and Policy Considerations

Report Sea-Level Rise and U.S. Coasts: Science and Policy Considerations - "From 1901 to 2010, global sea levels rose an estimated 187 millimeters (mm; 7.4 inches), averaging a 1.7 mm (0.07 inch) rise annually. Estimates are that the annual rate rose to 3.2 mm (0.13 inches) from 1992 to 2010. Although the extent of future sea-level rise remains uncertain, sea-level rise is anticipated to have a range of effects on U.S. coasts. It is anticipated to contribute to flood and erosion hazards, permanent or temporary land inundation, saltwater intrusion into coastal freshwaters, and changes in coastal terrestrial and estuarine ecosystems. Some states, such as Florida and Louisiana, and U.S. territories have a considerable share of their assets, people, economies, and water supplies vulnerable to sea-level rise. In 2010, roughly 100 million people lived in U.S. coastal shoreline counties. Increased flood risk associated with sea-level rise may increase demand for federal disaster assistance and challenge the National Flood Insurance Program. Federal programs support local and state infrastructure investments such as roads, bridges, and municipal water facilities that may be damaged or impaired." (Sept. 2016) (Published September 12, 2016)
Source: United States. Congressional Research Service
Climate Change Topics: Flooding / Sea level rise /
(Posted September 14, 2016)

 

Prolonged California aridity linked to climate warming and Pacific sea surface temperature

Report Prolonged California aridity linked to climate warming and Pacific sea surface temperature - "California has experienced a dry 21st century capped by severe drought from 2012 through 2015 prompting questions about hydroclimatic sensitivity to anthropogenic climate change and implications for the future. We address these questions using a Holocene lake sediment record of hydrologic change from the Sierra Nevada Mountains coupled with marine sediment records from the Pacific. These data provide evidence of a persistent relationship between past climate warming, Pacific sea surface temperature (SST) shifts and centennial to millennial episodes of California aridity. The link is most evident during the thermal-maximum of the mid-Holocene (~8 to 3 ka; ka = 1,000 calendar years before present) and during the Medieval Climate Anomaly (MCA) (~1 ka to 0.7 ka). In both cases, climate warming corresponded with cooling of the eastern tropical Pacific despite differences in the factors producing increased radiative forcing. The magnitude of prolonged eastern Pacific cooling was modest, similar to observed La Nina excursions of 1 to 2 degrees C. Given differences with current radiative forcing it remains uncertain if the Pacific will react in a similar manner in the 21st century, but should it follow apparent past behavior more intense and prolonged aridity in California would result." (MacDonald, G., et al., 2016, Scientific Reports) (Published September 15, 2016)
Source: University of California, Los Angeles
Climate Change Topics: California: Statewide / Drought /
(Posted September 14, 2016)

 

Toxic Slime Spreads Across World's Oceans as Climate Disruption Continues Apace

News article Toxic Slime Spreads Across World's Oceans as Climate Disruption Continues Apace (Published September 12, 2016)
Source: TruthOut
Climate Change Topics: Water quality /
(Posted September 12, 2016)

 

5 Municipal-Industrial Water Issues Analyzed

News article 5 Municipal-Industrial Water Issues Analyzed (Published September 9, 2016)
Source: Water Online
Climate Change Topics: Water utilities guidance /
(Posted September 9, 2016)

 

This is what the climate bill Jerry Brown signed means

News article This is what the climate bill Jerry Brown signed means (Published September 9, 2016)
Source: Sacramento Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted September 9, 2016)

 

Gov. Brown signs sweeping legislation to combat climate change

News article Gov. Brown signs sweeping legislation to combat climate change (Published September 9, 2016)
Source: Los Angeles Times
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted September 9, 2016)

 

CREAT Climate Scenarios Projection Map

Report CREAT Climate Scenarios Projection Map - "The impacts from a changing climate, including extreme heat and more intense storms, present challenges to water, wastewater, and stormwater utilities and the communities they serve. Understanding how climate change may affect a utility's ability to maintain and deliver adequate, reliable, and sustainable water supplies and clean water services is the first step in climate-related planning." Maps present scenarios for future temperature, precipitation, storms, extreme heat, sea level. (Published )
Source: United States. Environmental Protection Agency
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Sea level rise / Temperature / Water utilities guidance /
(Posted September 9, 2016)

 

Climate Change Is at the Heart of California's Water Future (Opinion)

News article Climate Change Is at the Heart of California's Water Future (Opinion) (Published September 8, 2016)
Source: Water Deeply
Climate Change Topics: California: Statewide / Groundwater / Water supply, changes in supply, snowpack /
(Posted September 8, 2016)

 

Twelve California Water Experts to Watch on Climate and Energy

News article Twelve California Water Experts to Watch on Climate and Energy (Published September 8, 2016)
Source: Water Deeply
Climate Change Topics: California: Statewide / Energy management and conservation / Water supply, changes in supply, snowpack / Water utilities guidance /
(Posted September 8, 2016)

 

Jerry Brown to sign climate change legislation Thursday

News article Jerry Brown to sign climate change legislation Thursday (Published September 8, 2016)
Source: Los Angeles Times
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted September 8, 2016)

 

LeZotte, Norton: San Jose needs Community Choice Energy (Opinion)

News article LeZotte, Norton: San Jose needs Community Choice Energy (Opinion) (Published September 7, 2016)
Source: San Jose Mercury News
Climate Change Topics: California: Bay Area and Delta / Community Choice Aggregation (CCA) /
(Posted September 7, 2016)

 

National Drought Resilience Partnership Report to the Council on Climate Preparedness and Resilience

Report National Drought Resilience Partnership Report to the Council on Climate Preparedness and Resilience - "Federal agencies have mobilized to provide improved information and data, emergency and planning assistance, landscape-scale land management improvements, and investments in new technologies and approaches to water resource management. Continued drought conditions in the West and projections of more extreme droughts in the future underscore the urgency to pursue long term solutions for protecting our water resources and the communities and ecosystems that depend on them." (Published August 31, 2016)
Climate Change Topics: Drought /
(Posted September 7, 2016)

 

Sonoma County preparing for critical climate changes

News article Sonoma County preparing for critical climate changes (Published September 5, 2016)
Source: Santa Rosa Press Democrat
Climate Change Topics: California: Bay Area and Delta / California: Water/Flood Protection Districts / Flooding / Sea level rise / Water supply, changes in supply, snowpack /
(Posted September 6, 2016)

 

Climate change test doesn't make for greener Earth

News article Climate change test doesn't make for greener Earth (Published September 6, 2016)
Source: San Francisco Chronicle
Climate Change Topics: California: Statewide / Ecosystems, Habitat, Threatened Species /
(Posted September 6, 2016)

 

Warmer, wetter climate would impair California grasslands, 17-year experiment finds

News article Warmer, wetter climate would impair California grasslands, 17-year experiment finds
Related Link: http://www.pnas.org/content/early/2016/08/30/1606734113
(Published September 6, 2016)
Source: Phys.Org
Climate Change Topics: California: Statewide / Ecosystems, Habitat, Threatened Species /
(Posted September 6, 2016)

 

Extreme-weather winters are becoming more common in U.S., Stanford research shows

News article Extreme-weather winters are becoming more common in U.S., Stanford research shows
Related Link: http://onlinelibrary.wiley.com/doi/10.1002/2016JD025116/full
(Published September 1, 2016)
Source: Stanford University News
Climate Change Topics: Precipitation, Extreme Weather / Temperature /
(Posted September 6, 2016)

 

MAP: Where Will Animals Migrate as Climate Changes?

News article MAP: Where Will Animals Migrate as Climate Changes? (Published September 2, 2016)
Source: KQED Radio
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted September 6, 2016)

 

Flooding of Coast, Caused by Global Warming, Has Already Begun

News article Flooding of Coast, Caused by Global Warming, Has Already Begun (Published September 4, 2016)
Source: New York Times
Climate Change Topics: Flooding / Sea level rise /
(Posted September 6, 2016)

 

Recent amplification of the North American winter temperature dipole

Report Recent amplification of the North American winter temperature dipole - "During the winters of 2013-2014 and 2014-2015, anomalously warm temperatures in western North America and anomalously cool temperatures in eastern North America resulted in substantial human and environmental impacts. Motivated by the impacts of these concurrent temperature extremes and the intrinsic atmospheric linkage between weather conditions in the western and eastern United States, we investigate the occurrence of concurrent 'warm-West/cool-East' surface temperature anomalies, which we call the 'North American winter temperature dipole.' We find that, historically, warm-West/cool-East dipole conditions have been associated with anomalous mid-tropospheric ridging over western North America and downstream troughing over eastern North America. We also find that the occurrence and severity of warm-West/cool-East events have increased significantly between 1980 and 2015, driven largely by an increase in the frequency with which high-amplitude 'ridge-trough' wave patterns result in simultaneous severe temperature conditions in both the West and East." (Singh, D., et al., 2016, Journal of Geophysical Research Atmospheres) (Published September 1, 2016)
Source: Stanford University
Climate Change Topics: Precipitation, Extreme Weather / Temperature /
(Posted September 6, 2016)

 

Nonlinear, interacting responses to climate limit grassland production under global change

Report Nonlinear, interacting responses to climate limit grassland production under global change - "Global environmental change involves many factors that occur simultaneously, yet they are usually studied in isolation. Here we report a long-term global change experiment that subjected California grassland to multiple individual and simultaneous changes in temperature, precipitation, carbon dioxide, and nitrogen. Our analysis revealed nonlinear and interactive effects of temperature and precipitation on grassland net primary production (NPP), which defined a ridge-shaped NPP response surface to these two variables. Added nitrogen raised the peak of the NPP response surface, and added CO2 shifted the peak to lower temperatures. Our approach was validated by tests showing an absence of progressive effects over the years. In other ecosystems, our approach may be similarly powerful for probing the effects of multifactor global change." (Zhu, K., 2016, Proceedings of the National Academy of Science) (Published September 6, 2016)
Source: Stanford University
Climate Change Topics: California: Statewide / Ecosystem Services and Climate Change / Ecosystems, Habitat, Threatened Species /
(Posted September 6, 2016)

 

Effect of Tree-to-Shrub Type Conversion in Lower Montane Forests of the Sierra Nevada (USA) on Streamflow

Report Effect of Tree-to-Shrub Type Conversion in Lower Montane Forests of the Sierra Nevada (USA) on Streamflow - "Higher global temperatures and increased levels of disturbance are contributing to greater tree mortality in many forest ecosystems. These same drivers can also limit forest regeneration, leading to vegetation type conversion. For the Sierra Nevada of California, little is known about how type conversion may affect streamflow, a critical source of water supply for urban, agriculture and environmental purposes. In this paper, we examined the effects of tree-to-shrub type conversion, in combination with climate change, on streamflow in two lower montane forest watersheds in the Sierra Nevada. A spatially distributed ecohydrologic model was used to simulate changes in streamflow, evaporation, and transpiration following type conversion, with an explicit focus on the role of vegetation size and aspect. Model results indicated that streamflow may show negligible change or small decreases following type conversion when the difference between tree and shrub leaf areas is small, partly due to the higher stomatal conductivity and the deep rooting depth of shrubs. In contrast, streamflow may increase when post-conversion shrubs have a small leaf area relative to trees. Model estimates also suggested that vegetation change could have a greater impact on streamflow magnitude than the direct hydrologic impacts of increased temperatures. Temperature increases, however, may have a greater impact on streamflow timing. Tree-to-shrub type conversion increased streamflow only marginally during dry years (annual precipitation < 800 mm), with most streamflow change observed during wetter years. These modeling results underscore the importance of accounting for changes in vegetation communities to accurately characterize future hydrologic regimes for the Sierra Nevada." (Bart, R. R., et al., 2015, PLOS One) (Published August 30, 2016)
Climate Change Topics: California: Statewide / Streamflow / Water supply, changes in supply, snowpack /
(Posted September 6, 2016)

 

6 Major U.S. Cities Facing Potentially Catastrophic Sea Level Rise (Infographic)

News article 6 Major U.S. Cities Facing Potentially Catastrophic Sea Level Rise (Infographic) (Published September 2, 2016)
Source: Alternet
Climate Change Topics: Flooding / Sea and Polar ice /
(Posted September 2, 2016)

 

Understanding Sea Level Rise, p2: A short chronology of SLR forecasts for the year 2100 (showing they increase with time)

News article Understanding Sea Level Rise, p2: A short chronology of SLR forecasts for the year 2100 (showing they increase with time) (Published September 2, 2016)
Source: Bits of Science
Climate Change Topics: Sea level rise /
(Posted September 2, 2016)

 

When it comes to climate change and stream flow, plants play an important role

News article When it comes to climate change and stream flow, plants play an important role
Related Link: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0161805
(Published September 2, 2016)
Source: Science Daily
Climate Change Topics: California: Statewide / Streamflow / Water supply, changes in supply, snowpack /
(Posted September 2, 2016)

 

What Climate Change Means for California

Report What Climate Change Means for California - Two-page fact sheet summarizes effects on snowpack, water availability, agriculture, wildfires, human health, and sea level rise. (Published August 24, 2016)
Source: United States. Environmental Protection Agency
Climate Change Topics: Agriculture / California: Statewide / Global issues, human impacts / Sea level rise / Water supply, changes in supply, snowpack / Wildfires /
(Posted August 31, 2016)

 

Climate change has less impact on drought than previously expected

News article Climate change has less impact on drought than previously expected (Published August 29, 2016)
Source: Phys.Org
Climate Change Topics: Drought / Ecosystem Services and Climate Change / Ecosystems, Habitat, Threatened Species /
(Posted August 30, 2016)

 

Plants' future water use affects long-term drought estimates

News article Plants' future water use affects long-term drought estimates
Related Link: http://www.pnas.org/content/early/2016/08/24/1604581113.abstract
(Published August 29, 2016)
Source: EurekAlert
Climate Change Topics: Drought / Ecosystem Services and Climate Change / Ecosystems, Habitat, Threatened Species /
(Posted August 30, 2016)

 

Plant responses to increasing CO2 reduce estimates of climate impacts on drought severity

Report Plant responses to increasing CO2 reduce estimates of climate impacts on drought severity - "We show that the water savings that plants experience under high CO2 conditions compensate for much of the effect of warmer temperatures, keeping the amount of water on land, on average, higher than we would predict with common drought metrics, and with a different spatial pattern. The implications of plants needing less water under high CO2 reaches beyond drought prediction to the assessment of climate change impacts on agriculture, water resources, wildfire risk, and vegetation dynamics." (Swann, A. L. S., et al., 2016, Proceedings of the National Academy of Science) (Published August 29, 2016)
Climate Change Topics: Agriculture / Drought / Ecosystem Services and Climate Change / Greenhouse gas (GHG) increases / Water supply, changes in supply, snowpack / Ecosystems, Habitat, Threatened Species /
(Posted August 30, 2016)

 

California climate change laws: More electric cars, solar power expected under tough new rules

News article California climate change laws: More electric cars, solar power expected under tough new rules (Published August 29, 2016)
Source: San Jose Mercury News
Climate Change Topics: AB 32 / California: Statewide / Renewable energy / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 29, 2016)

 

California's New Climate Rules, Explained

News article California's New Climate Rules, Explained (Published August 26, 2016)
Source: KQED Radio
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 29, 2016)

 

'Climate change is water change' -- why the Colorado River system is headed for major trouble

News article 'Climate change is water change' -- why the Colorado River system is headed for major trouble (Published August 19, 2016)
Source: Washington Post
Climate Change Topics: Streamflow / Water supply, changes in supply, snowpack /
(Posted August 26, 2016)

 

As sea levels rise, nearly 1.9 million U.S. homes could be underwater by 2100

News article As sea levels rise, nearly 1.9 million U.S. homes could be underwater by 2100 (Published August 24, 2016)
Source: Washington Post
Climate Change Topics: Flooding / Sea level rise /
(Posted August 26, 2016)

 

Human-Driven Global Warming Started as Early as the 1830s: Study

News article Human-Driven Global Warming Started as Early as the 1830s: Study (Published August 25, 2016)
Source: KQED Radio
Climate Change Topics: Greenhouse gas (GHG) increases / Temperature /
(Posted August 26, 2016)

 

'A real commitment backed up by real power': Gov. Jerry Brown to sign sweeping new climate legislation

News article 'A real commitment backed up by real power': Gov. Jerry Brown to sign sweeping new climate legislation (Published August 25, 2016)
Source: Los Angeles Times
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 25, 2016)

 

California's cap-and-trade carbon program sputters again

News article California's cap-and-trade carbon program sputters again (Published August 24, 2016)
Source: Sacramento Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 24, 2016)

 

California Assembly approves climate change law

News article California Assembly approves climate change law (Published August 24, 2016)
Source: Sacramento Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 24, 2016)

 

Surging Seas Risk Finder

Report Surging Seas Risk Finder - Enter a location and get sea level and coastal flood risk. You can get different scenarios for different heights of sea level rise. Results and reports can be downloaded. (Published )
Climate Change Topics: Flooding / Sea level rise /
(Posted August 24, 2016)

 

Digital Coast

Report Digital Coast - "The Digital Coast was developed to meet the unique needs of the coastal management community. The website provides not only coastal data, but also the tools, training, and information needed to make these data truly useful. Content comes from many sources, all of which are vetted by NOAA. Data sets range from economic data to satellite imagery. The site contains visualization tools, predictive tools, and tools that make data easier to find and use. Top data sets include lidar, economic, and land cover data. Most used tools include the Sea Level Riser Viewer, Land Cover Atlas, and a do-it-yourself visualization tool." (Published )
Source: United States. National Oceanic and Atmospheric Administration
Climate Change Topics: Sea level rise /
(Posted August 24, 2016)

 

Managing Climate Change Refugia for Climate Adaptation

Report Managing Climate Change Refugia for Climate Adaptation - "Refugia have long been studied from paleontological and biogeographical perspectives to understand how populations persisted during past periods of unfavorable climate. Recently, researchers have applied the idea to contemporary landscapes to identify climate change refugia, here defined as areas relatively buffered from contemporary climate change over time that enable persistence of valued physical, ecological, and socio-cultural resources. We differentiate historical and contemporary views, and characterize physical and ecological processes that create and maintain climate change refugia. We then delineate how refugia can fit into existing decision support frameworks for climate adaptation and describe seven steps for managing them. Finally, we identify challenges and opportunities for operationalizing the concept of climate change refugia. Managing climate change refugia can be an important option for conservation in the face of ongoing climate change." (Morelli, T. L., et al., 2016, PLOS One) (Published August 10, 2016)
Climate Change Topics: Adaptation / Ecosystems, Habitat, Threatened Species /
(Posted August 24, 2016)

 

Climate change is real to farmers in California (Opinion)

News article Climate change is real to farmers in California (Opinion) (Published August 23, 2016)
Source: Fresno Bee
Climate Change Topics: Agriculture / California: Statewide /
(Posted August 23, 2016)

 

Mosquitoes winning under climate change, salmon losing

News article Mosquitoes winning under climate change, salmon losing (Published August 20, 2016)
Source: San Diego Union Tribune
Climate Change Topics: California: Statewide / Ecosystems, Habitat, Threatened Species /
(Posted August 23, 2016)

 

'Next year or the year after, the Arctic will be free of ice'

News article 'Next year or the year after, the Arctic will be free of ice' (Published August 21, 2016)
Source: Guardian (U.K.)
Climate Change Topics: Sea and Polar ice /
(Posted August 23, 2016)

 

California Climate Program Faces Uncertain Future Beyond 2020

News article California Climate Program Faces Uncertain Future Beyond 2020 (Published August 18, 2016)
Source: KQED Radio
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 22, 2016)

 

In a Warming World, Deluges Like Louisiana's Expected to Increase

News article In a Warming World, Deluges Like Louisiana's Expected to Increase (Published August 17, 2016)
Source: Inside Climate News
Climate Change Topics: Flooding /
(Posted August 18, 2016)

 

Opinion: What Fueled Louisiana's Deadly Flood?

News article Opinion: What Fueled Louisiana's Deadly Flood? (Published August 17, 2016)
Source: New York Times
Climate Change Topics: Flooding /
(Posted August 18, 2016)

 

Flooding in the South Looks a Lot Like Climate Change

News article Flooding in the South Looks a Lot Like Climate Change (Published August 16, 2016)
Source: New York Times
Climate Change Topics: Flooding /
(Posted August 18, 2016)

 

NASA: Last month was Earth's hottest in recorded history

News article NASA: Last month was Earth's hottest in recorded history (Published August 16, 2016)
Source: San Jose Mercury News
Climate Change Topics: Temperature /
(Posted August 16, 2016)

 

Global warming's next surprise: Saltier beaches

News article Global warming's next surprise: Saltier beaches (Published August 11, 2016)
Source: Science Daily
Climate Change Topics: Water quality /
(Posted August 12, 2016)

 

The Climate Post: Volcanic Eruption Affects Sea Level Rise

News article The Climate Post: Volcanic Eruption Affects Sea Level Rise (Published August 11, 2016)
Source: Huffington Post
Climate Change Topics: Sea level rise /
(Posted August 12, 2016)

 

The Blob That Cooked the Pacific

News article The Blob That Cooked the Pacific (Published August 10, 2016)
Source: National Geographic
Climate Change Topics: Temperature /
(Posted August 11, 2016)

 

California mayors voice support for climate proposal

News article California mayors voice support for climate proposal (Published August 11, 2016)
Source: Los Angeles Times
Climate Change Topics: Politics, laws, United Nations, etc. /
(Posted August 11, 2016)

 

White House Honors Tulare County Water Advocate

News article White House Honors Tulare County Water Advocate (Published August 11, 2016)
Source: Valley Public Radio
Climate Change Topics: California: Statewide / Politics, laws, United Nations, etc. / Water quality /
(Posted August 11, 2016)

 

Managing climate change refugia to protect wildlife

News article Managing climate change refugia to protect wildlife
Related Link: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0159909
(Published August 10, 2016)
Source: Science Daily
Climate Change Topics: Adaptation / Ecosystems, Habitat, Threatened Species /
(Posted August 11, 2016)

 

Seas aren't just rising, scientists say -- it's worse than that. They're speeding up.

News article Seas aren't just rising, scientists say -- it's worse than that. They're speeding up. (Published August 10, 2016)
Source: Washington Post
Climate Change Topics: Sea level rise /
(Posted August 10, 2016)

 

Heat Wave Boosts U.S. to Third Warmest Year on Record Through July

News article Heat Wave Boosts U.S. to Third Warmest Year on Record Through July (Published August 9, 2016)
Source: KQED-TV
Climate Change Topics: Temperature /
(Posted August 9, 2016)

 

Why Passing Climate Legislation Is Good for California's Water (Opinion)

News article Why Passing Climate Legislation Is Good for California's Water (Opinion) (Published August 8, 2016)
Source: Water Deeply
Climate Change Topics: AB 32 / California: Statewide / Drought / Greenhouse gas (GHG) reduction, mitigation / Water supply, changes in supply, snowpack /
(Posted August 8, 2016)

 

Humans leave greater green fingerprints

News article Humans leave greater green fingerprints (Published August 5, 2016)
Source: Eco-business.com
Climate Change Topics: Greenhouse gas (GHG) increases /
(Posted August 5, 2016)

 

Early snowmelt reduces forests' atmospheric carbon dioxide uptake, decreases streamflow volume

News article Early snowmelt reduces forests' atmospheric carbon dioxide uptake, decreases streamflow volume (Published August 3, 2016)
Source: Science Daily
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Streamflow / Water supply, changes in supply, snowpack /
(Posted August 4, 2016)

 

Roughly 2 Percent of U.S. Homes At Risk from Sea Level Rise, Report Finds

News article Roughly 2 Percent of U.S. Homes At Risk from Sea Level Rise, Report Finds (Published August 3, 2016)
Source: Yale Environment 360
Climate Change Topics: Sea level rise /
(Posted August 4, 2016)

 

Climate Retreat? Legislature May Ditch Plan to Radically Reduce Emissions

News article Climate Retreat? Legislature May Ditch Plan to Radically Reduce Emissions (Published August 4, 2016)
Source: KQED Radio
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 4, 2016)

 

Scientists' annual physical of planet: 'Earth's fever rises'

News article Scientists' annual physical of planet: 'Earth's fever rises'
Related Link: https://www.ametsoc.org/ams/index.cfm/publications/bulletin-of-the-american-meteorological-society-bams/state-of-the-climate/
(Published August 3, 2016)
Source: Associated Press
Climate Change Topics: Precipitation, Extreme Weather / Temperature /
(Posted August 3, 2016)

 

MACA Statistically Downscaled Climate Data from CMIP5

Report MACA Statistically Downscaled Climate Data from CMIP5 - Climate data that can be used for local and regional scenarios. Questions and answers from USGS (Published July 20, 2016)
Source: United States. Geological Survey
Climate Change Topics: Models and Tools /
(Posted August 3, 2016)

 

State of the Climate

Report State of the Climate - "An international, peer-reviewed publication released each summer, the State of the Climate is the authoritative annual summary of the global climate published as a supplement to the Bulletin of the American Meteorological Society. The report, compiled by NOAA's Center for Weather and Climate at the National Centers for Environmental Information is based on contributions from scientists from around the world. It provides a detailed update on global climate indicators, notable weather events, and other data collected by environmental monitoring stations and instruments located on land, water, ice, and in space." (Published August 2, 2016)
Source: United States. National Oceanic and Atmospheric Administration
Climate Change Topics: Precipitation, Extreme Weather / Sea and Polar ice / Sea level rise / Temperature /
(Posted August 3, 2016)

 

Adaptation Clearinghouse

Report Adaptation Clearinghouse - "An online database and networking site that serves policymakers and others who are working to help communities adapt to climate change." (Georgetown University) (Published )
Climate Change Topics: Adaptation / Sea level rise / Water supply, changes in supply, snowpack / Water utilities guidance /
(Posted August 3, 2016)

 

Risky business: Engaging the public on sea level rise and inundation

Report Risky business: Engaging the public on sea level rise and inundation - "To examine whether U.S. public opinion may become as sharply polarized on adaptation responses as it has been on mitigation policies, we surveyed a sample of urban coastal residents in Maryland (n = 378). We then tested the impact of a community deliberative event (n = 40) with small-group sea level rise discussions as a depolarization strategy. Cultural worldviews which contribute to politically polarized beliefs about climate were predictive of perceptions of sea level rise risk. Living close to flooding hazards also significantly predicted respondents' perceptions of household or neighborhood risks, but not of risks to the entire county. The event significantly increased topic knowledge among all participants and, among those with a worldview predisposing them to lower risk perceptions, significantly increased problem identification and concern about impacts. These results suggest small-group deliberation focused on local problem-solving may be an effective tool for reducing the polarizing effects of cultural worldviews on decision-making." (Akerlof, K. L., et al., 2016, Environmental Sciences and Policy) (Published July 18, 2016)
Climate Change Topics: Flooding / Politics, laws, United Nations, etc. / Sea level rise /
(Posted August 3, 2016)

 

EPA Report Tracks our Changing Climate

News article EPA Report Tracks our Changing Climate
Related Link: https://www.epa.gov/climate-indicators
(Published August 2, 2016)
Source: U.S. Environmental Protection Agency
Climate Change Topics: Drought / Flooding / Sea and Polar ice / Sea level rise / Temperature / Wildfires /
(Posted August 2, 2016)

 

From now on, every government agency will have to consider climate change

News article From now on, every government agency will have to consider climate change
Related Link: https://www.whitehouse.gov/administration/eop/ceq/initiatives/nepa/ghg-guidance
(Published August 3, 2016)
Source: Washington Post
Climate Change Topics: Adaptation / Federal Regulations, EPA, Clean Air Act / Greenhouse gas (GHG) reduction, mitigation /
(Posted August 2, 2016)

 

Inland water carbon dioxide emissions 'underestimated'

News article Inland water carbon dioxide emissions 'underestimated' (Published August 2, 2016)
Source: Environmental Research Web
Climate Change Topics: Dams and reservoirs / Greenhouse gas (GHG) increases /
(Posted August 2, 2016)

 

Will an expanded power grid help California fight climate change?

News article Will an expanded power grid help California fight climate change? (Published August 2, 2016)
Source: Sacramento Bee
Climate Change Topics: California: Statewide / Energy management and conservation / Renewable energy /
(Posted August 2, 2016)

 

Climatic consequences of adopting drought tolerant vegetation over Los Angeles as a response to California drought

Report Climatic consequences of adopting drought tolerant vegetation over Los Angeles as a response to California drought - "During 2012-2014, drought in California resulted in policies to reduce water consumption. One measure pursued was replacing lawns with landscapes that minimize water consumption, such as drought tolerant vegetation. If implemented at broad scale, this strategy would result in reductions in irrigation, and changes in land surface characteristics. In this study, we employ a modified regional climate model to assess the climatic consequences of adopting drought tolerant vegetation over the Los Angeles metropolitan area. Transforming lawns to drought tolerant vegetation resulted in daytime warming of up to 1.9 degrees C, largely due to decreases in irrigation that shifted surface energy partitioning toward higher sensible and lower latent heat flux. During nighttime, however, adopting drought tolerant vegetation caused mean cooling of about 3?degrees C, due to changes in soil thermodynamic properties and heat exchange dynamics between the surface and ground. Our results show that nocturnal cooling effects, which are larger in magnitude and of great importance for public health during heat events, could counterbalance the daytime warming attributed to the studied water conservation strategy. A more aggressive implementation, assuming all urban vegetation was replaced with drought tolerant vegetation, resulted in an average daytime cooling of 0.2?degree C, largely due to weakened sea-breeze patterns, highlighting the important role of land surface roughness in this coastal megacity." (Vahmani, P. and G. Ban-Weiss, 2016, Geophysical Research Letters) (Published July 29, 2016)
Climate Change Topics: California: Statewide / Temperature /
(Posted August 2, 2016)

 

Climate Change Indicators in the United States

Report Climate Change Indicators in the United States - "The Earth's climate is changing. Temperatures are rising, snow and rainfall patterns are shifting, and more extreme climate events -- like heavy rainstorms and record high temperatures -- are already happening. Many of these observed changes are linked to the rising levels of carbon dioxide and other greenhouse gases in our atmosphere, caused by human activities. EPA partners with more than 40 data contributors from various government agencies, academic institutions, and other organizations to compile a key set of indicators related to the causes and effects of climate change. The indicators are published in EPA's report, Climate Change Indicators in the United States." (Published August 2, 2016)
Source: United States. Environmental Protection Agency
Climate Change Topics: Drought / Ecosystems, Habitat, Threatened Species / Flooding / Global issues, human impacts / Greenhouse gas (GHG) increases / Precipitation, Extreme Weather / Sea and Polar ice / Sea level rise / Temperature /
(Posted August 2, 2016)

 

Climate Explorer

Report Climate Explorer - "Explore maps and graphs of historical and projected climate trends in your local area. View data by topics to see how climate change will impact things you care about." Data include temperature, precipitation, sea-level rise, ecosystems. (Published )
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Precipitation, Extreme Weather / Sea level rise / Temperature /
(Posted August 2, 2016)

 

Can California tune up its climate strategy? (Editorial)

News article Can California tune up its climate strategy? (Editorial) (Published August 1, 2016)
Source: Fresno Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) increases /
(Posted August 1, 2016)

 

Climate Change Signs Seen in California Wildfires

News article Climate Change Signs Seen in California Wildfires (Published July 29, 2016)
Source: KQED Radio
Climate Change Topics: California: Water/Flood Protection Districts / Wildfires /
(Posted August 1, 2016)

 

Lake Tahoe: Warmest water temperatures ever recorded threaten famed clarity, new study shows

News article Lake Tahoe: Warmest water temperatures ever recorded threaten famed clarity, new study shows (Published July 29, 2016)
Source: San Jose Mercury News
Climate Change Topics: California: Statewide / Water quality /
(Posted July 29, 2016)

 

Scientists have found a perfect illustration of how the climate is spiraling 'out of control'

News article Scientists have found a perfect illustration of how the climate is spiraling 'out of control' (Published July 28, 2016)
Source: Washington Post
Climate Change Topics: Temperature /
(Posted July 29, 2016)

 

Climate change in your county: Plan with this new tool

News article Climate change in your county: Plan with this new tool
Related Link: https://toolkit.climate.gov/climate-explorer2/
(Published July 27, 2016)
Source: U.S. National Oceanic and Atmospheric Administration
Climate Change Topics: Models and Tools /
(Posted July 29, 2016)

 

Warming at Alarming Rate, Lake Tahoe Reflects Rapid Sierra Climate Change

News article Warming at Alarming Rate, Lake Tahoe Reflects Rapid Sierra Climate Change (Published July 28, 2016)
Source: KQED Radio
Climate Change Topics: California: Statewide / Temperature / Water supply, changes in supply, snowpack /
(Posted July 29, 2016)

 

Strong Support for Global Warming Law and for Expanding Its Goals; Fewer Are Worried about Water, But It's Still Top Environmental Issue

News article Strong Support for Global Warming Law and for Expanding Its Goals; Fewer Are Worried about Water, But It's Still Top Environmental Issue (Published July 27, 2016)
Source: Public Policy Institute of California
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation / Politics, laws, United Nations, etc. /
(Posted July 28, 2016)

 

Poll finds Californians back climate change efforts despite cost

News article Poll finds Californians back climate change efforts despite cost (Published July 28, 2016)
Source: Sacramento Bee
Climate Change Topics: AB 32 / California: Statewide / Greenhouse gas (GHG) reduction, mitigation / Politics, laws, United Nations, etc. /
(Posted July 28, 2016)

 

El Niño is gone, but Earth's record heat is sticking around

News article El Niño is gone, but Earth's record heat is sticking around (Published July 22, 2016)
Source: San Jose Mercury News
Climate Change Topics: Temperature /
(Posted July 22, 2016)

 

Study role of climate change in extreme threats to water quality

News article Study role of climate change in extreme threats to water quality (Published July 19, 2016)
Source: Nature
Climate Change Topics: Water quality /
(Posted July 21, 2016)

 

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