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Climate Change Blog

 

Experimental Living Levee Could Battle Rising Bay Tides

News article Experimental Living Levee Could Battle Rising Bay Tides (Published February 2, 2016)
Source: NBC Bay Area (KNTV)
Climate Change Topics: California: Bay Area and Delta / Flooding / Sea level rise /
(Posted February 3, 2016)

 

Understanding Climate Change Impacts on Water Resources

Report Understanding Climate Change Impacts on Water Resources - "This training module is designed to increase your understanding of the causes of climate change, its potential impacts on water resources, and the challenges water resource managers are facing. The course contains three parts which will take about 45 minutes to complete. Optional supplementary information on climate change impacts in the United States is included at the end of the course if you are interested in more details." (Part of Watershed Academy) (Published )
Source: United States. Environmental Protection Agency
Climate Change Topics: Adaptation / Precipitation, Extreme Weather / Sea level rise / Water supply, changes in supply, snowpack / Water utilities guidance /
(Posted February 3, 2016)

 

How Restoring Wetlands Will Prepare Us for Sea Level Rise

News article How Restoring Wetlands Will Prepare Us for Sea Level Rise (Published February 2, 2016)
Source: Bay Area Monitor
Climate Change Topics: California: Bay Area and Delta / Ecosystem Services and Climate Change / Sea level rise /
(Posted February 2, 2016)

 

Conservation Lands Network

Report Conservation Lands Network - Working from a map, users can get data on vegetation, conservation suitability, protected lands, streams targeted for conservation, and climate and hydrology (including future projections) in the Bay Area. (Published )
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Precipitation, Extreme Weather / Temperature /
(Posted February 2, 2016)

 

High Resolution Climate-Hydrology Scenarios for San Francisco's Bay Area

Report High Resolution Climate-Hydrology Scenarios for San Francisco's Bay Area - "The goal of this study is to deliver climate and hydrology projections for applied use with the geographic extent of the ten Bay Area counties and to provide managers an interpretive analysis of the range of projected changes in the context of historic climate patterns. To fulfill this goal this project generated a fine-scaled set of climate and hydrology projections for the 10 San Francisco Bay Area counties through the next century that are consistent with the International Panel on Climate Change (IPCC) Global Circulation Models (GCMs) and that are firmly grounded in higher resolution historical empirical data capturing the region's weather patterns and watershed dynamics." (Published December 31, 2013)
Climate Change Topics: California: Bay Area and Delta / Water Supply, SB 610, SB 221 /
(Posted February 2, 2016)

 

Targeting climate diversity in conservation planning to build resilience to climate change

Report Targeting climate diversity in conservation planning to build resilience to climate change - "Climate is one important abiotic driver of biodiversity patterns, as different climates host different biological communities and genetic pools. We propose conservation networks that capture the full range of climatic diversity in a region will improve the resilience of biotic communities to climate change compared to networks that do not. In this study we used historical and future hydro-climate projections from the high resolution Basin Characterization Model to explore the utility of directly targeting climatic diversity in planning." (Heller, N. E., et al., 2015, Ecosphere) (Published April 24, 2015)
Climate Change Topics: Adaptation / California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species /
(Posted February 2, 2016)

 

Bay Area Ecosystems Climate Change Consortium

Report Bay Area Ecosystems Climate Change Consortium - "BAECCC brings together natural resource managers, scientists, and others to collaboratively understand and reduce the negative impacts of climate change on Bay Area ecosystems and communities." One of its partners is the Bay Area Flood Protection Agencies Association, which includes SCVWD. (Published )
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Flooding / Sea level rise / Water supply, changes in supply, snowpack /
(Posted February 2, 2016)

 

Terrestrial Biodiversity and Climate Change Collaborative - San Francisco Bay Area

Report Terrestrial Biodiversity and Climate Change Collaborative - San Francisco Bay Area - "Pepperwood's Terrestrial Biodiversity and Climate Change Collaborative (TBC3) is a vibrant collective of university, non-profit and government experts focused on bringing the best available science to inform climate adaptation strategies for natural resources in California's Coast Ranges." (Published )
Climate Change Topics: Adaptation / California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species /
(Posted February 2, 2016)

 

El Niño Means It's Warmer Than Usual. Take Away the El Niño? That's Warmer Than Usual, Too

News article El Niño Means It's Warmer Than Usual. Take Away the El Niño? That's Warmer Than Usual, Too (Published January 26, 2016)
Source: Bay Nature
Climate Change Topics: California: Statewide / Temperature /
(Posted January 27, 2016)

 

Climate change: Ocean warming underestimated

News article Climate change: Ocean warming underestimated (Published January 25, 2016)
Source: Science Daily
Climate Change Topics: Sea level rise /
(Posted January 27, 2016)

 

Sea level rise from ocean warming underestimated, scientists say

News article Sea level rise from ocean warming underestimated, scientists say
Related Link: http://www.pnas.org/content/early/2016/01/20/1519132113.abstract
(Published January 26, 2016)
Source: Guardian (U.K.)
Climate Change Topics: Sea level rise /
(Posted January 26, 2016)

 

Revisiting the contemporary sea-level budget on global and regional scales

Report Revisiting the contemporary sea-level budget on global and regional scales - "Understanding sea-level change is of paramount importance because it reflects climate-related factors, such as the ocean heat budget, mass changes in the cryosphere, and natural ocean/atmosphere variations. Furthermore, sea-level rise directly affects coastal areas, which has ramifications for its population and economy. From a novel combination of Gravity Recovery And Climate Experiment and radar altimetry data we find over the last 12 y: (i) a larger global steric sea-level rise as previously reported, (ii) a mass contribution to global sea level consistent with mass loss estimates from the world’s ice sheets, glaciers, and hydrological sources, and (iii) regionally resolved sea-level budget components which differ significantly from that of the global sea-level budget. " (Rietbroek, R., et al., 2016, Proceedings of the National Academy of Sciences) (Published January 25, 2016)
Climate Change Topics: Sea level rise /
(Posted January 26, 2016)

 

California's Future: Climate Change

Report California's Future: Climate Change - Six-page summary of climate change issues in the state. (Updated Jan. 2016) (Published January 5, 2016)
Source: Public Policy Institute of California
Climate Change Topics: California: Statewide / Greenhouse gas (GHG) reduction, mitigation / Sea level rise / Temperature / Water supply, changes in supply, snowpack /
(Posted January 25, 2016)

 

2015 Was the Warmest Year on Record Globally (But Not in California)

News article 2015 Was the Warmest Year on Record Globally (But Not in California) (Published January 20, 2016)
Source: KQED Radio
Climate Change Topics: California: Statewide / Temperature /
(Posted January 20, 2016)

 

2015 was the hottest year on record, according to new data

News article 2015 was the hottest year on record, according to new data (Published January 21, 2016)
Source: Los Angeles Times
Climate Change Topics: Temperature /
(Posted January 20, 2016)

 

Governor Brown Urges Water Managers to Plan for Climate Change

News article Governor Brown Urges Water Managers to Plan for Climate Change (Published January 15, 2016)
Source: Union of Concerned Scientists
Climate Change Topics: California: Statewide / Water supply, changes in supply, snowpack / Water utilities guidance /
(Posted January 15, 2016)

 

$12 annual Bay tax on June ballot: First-ever nine-county parcel tax proposed to support restoration

News article $12 annual Bay tax on June ballot: First-ever nine-county parcel tax proposed to support restoration (Published January 15, 2016)
Source: San Mateo Daily Journal
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted January 15, 2016)

 

Would You Pay $12 a Year to Fight Sea Level Rise?

News article Would You Pay $12 a Year to Fight Sea Level Rise? (Published January 13, 2016)
Source: KQED Radio
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted January 14, 2016)

 

1st-ever parcel tax to restore San Francisco Bay headed to voters

News article 1st-ever parcel tax to restore San Francisco Bay headed to voters (Published January 14, 2016)
Source: San Francisco Chronicle
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted January 14, 2016)

 

Researcher's Work Shows History Doesn't Indicate the Future of Climate Change

News article Researcher's Work Shows History Doesn't Indicate the Future of Climate Change
Related Link: http://onlinelibrary.wiley.com/doi/10.1002/joc.4545/abstract
(Published January 13, 2016)
Source: UC Merced
Climate Change Topics: Temperature /
(Posted January 13, 2016)

 

First-of-its-kind $12 parcel tax proposed for all nine Bay Area counties

News article First-of-its-kind $12 parcel tax proposed for all nine Bay Area counties (Published January 13, 2016)
Source: San Jose Mercury News
Climate Change Topics: California: Bay Area and Delta / Ecosystem Services and Climate Change / Sea level rise /
(Posted January 13, 2016)

 

Influence of winter season climate variability on snow-precipitation ratio in the western United States

Report Influence of winter season climate variability on snow-precipitation ratio in the western United States - "As the climate continues to warm, much of the region's precipitation is expected to switch from snow to rain, causing flashier hydrographs, earlier inflow to reservoirs, and reduced spring and summer snowpack. This study investigates historical variability in snow to precipitation proportion (Sf) and maps areas in the western United States that have demonstrated higher Sf sensitivity to warming in the past. Projected changes in Sf under 1.1, 1.8, and 3.0 degrees C future warming scenarios are presented in relation to historical variability and sensitivity. Our findings suggest that Sf in this region has primarily varied based on winter temperature rather than precipitation. The difference in Sf between cold and warm winters at low- and mid-elevations during 1916–2003 ranged from 31% in the Pacific Northwest to 40% in the California Sierra Nevada. In contrast, the difference in Sf between wet and dry winters was statistically not significant. Overall, in the northern Sierra, Klamath, and western slopes of the Cascade Mountains Ranges, Sf was most sensitive to temperature where winter temperature ranged between -5 to 5?degrees C. Results from our trend analysis show a regional shift in both Sf and signal-to-noise ratios during 1960-2003 as compared with 1916-2003. Our findings indicate that natural variability in Sf over 1916-2003 across all regions except for the Great Basin most closely resembles the projected 2040-warming scenario (+1.8?degrees C)." (Safeeq, M., 2015, International Journal of Climatology) (Published November 9, 2015)
Climate Change Topics: California: Statewide / Water supply, changes in supply, snowpack /
(Posted January 13, 2016)

 

Powerful replacement in works for climate-modeling computer

News article Powerful replacement in works for climate-modeling computer (Published January 12, 2016)
Source: Associated Press
Climate Change Topics: Models and Tools /
(Posted January 12, 2016)

 

Flooding and erosion increasing threat to California coast

News article Flooding and erosion increasing threat to California coast (Published January 11, 2016)
Source: Santa Cruz Sentinel
Climate Change Topics: California: Statewide / Flooding / Sea level rise /
(Posted January 11, 2016)

 

Energy partnership pitches electric alternative

News article Energy partnership pitches electric alternative (Published January 6, 2016)
Source: Los Altos Town Crier
Climate Change Topics: Community Choice Aggregation (CCA) /
(Posted January 6, 2016)

 

Sunnyvale: City will join up with Community Choice Energy program

News article Sunnyvale: City will join up with Community Choice Energy program (Published December 24, 2015)
Source: Sunnyvale Sun
Climate Change Topics: California: Bay Area and Delta / Community Choice Aggregation (CCA) /
(Posted December 24, 2015)

 

Carbon in Water must be Accounted for in Projections of Future Climate

News article Carbon in Water must be Accounted for in Projections of Future Climate (Published December 21, 2015)
Source: U.S. Geological Survey
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted December 24, 2015)

 

Palo Alto: Summit planned to update climate action plan

News article Palo Alto: Summit planned to update climate action plan (Published December 23, 2015)
Source: Palo Alto Daily News
Climate Change Topics: California: Bay Area and Delta / Greenhouse gas (GHG) reduction, mitigation /
(Posted December 23, 2015)

 

Have You Noticed this Billboard Along Highway 101? It's a public awareness campaign on climate change and storm fallout from advocacy group 'Our Bay On The Brink.' Is it working?

News article Have You Noticed this Billboard Along Highway 101? It's a public awareness campaign on climate change and storm fallout from advocacy group 'Our Bay On The Brink.' Is it working? (Published December 23, 2015)
Source: Patch.com
Climate Change Topics: California: Bay Area and Delta / Flooding / Santa Clara Valley Water District / Sea level rise /
(Posted December 23, 2015)

 

Marshes Likely More Resilient to Sea Level Rise than Thought, Study Says

News article Marshes Likely More Resilient to Sea Level Rise than Thought, Study Says (Published December 18, 2015)
Source: Yale Environment 360
Climate Change Topics: Ecosystem Services and Climate Change / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted December 22, 2015)

 

PUC deals a blow to local power plans (Editorial)

News article PUC deals a blow to local power plans (Editorial) (Published December 19, 2015)
Source: San Jose Mercury News
Climate Change Topics: California: Statewide / Community Choice Aggregation (CCA) /
(Posted December 21, 2015)

 

New light shed on lake evaporation under changing climate

News article New light shed on lake evaporation under changing climate (Published December 16, 2015)
Source: Science Daily
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted December 21, 2015)

 

Greenhouse gas emissions from freshwater higher than thought

News article Greenhouse gas emissions from freshwater higher than thought (Published December 15, 2015)
Source: Science Daily
Climate Change Topics: Greenhouse gas (GHG) increases /
(Posted December 18, 2015)

 

Study: Rising lake temperatures may worsen algae blooms

News article Study: Rising lake temperatures may worsen algae blooms (Published December 18, 2015)
Source: Associated Press
Climate Change Topics: Water quality /
(Posted December 18, 2015)

 

CPUC Approves Fee Hike for Opting Out of PG&E Service

News article CPUC Approves Fee Hike for Opting Out of PG&E Service (Published December 17, 2015)
Source: KQED Radio
Climate Change Topics: California: Statewide / Community Choice Aggregation (CCA) /
(Posted December 18, 2015)

 

Haunted by Waters (Opinion)

News article Haunted by Waters (Opinion) (Published December 18, 2015)
Source: New York Times
Climate Change Topics: Drought / Precipitation, Extreme Weather / Water supply, changes in supply, snowpack /
(Posted December 18, 2015)

 

San Diego adopts an ambitious, and legally binding, plan to cut emissions

News article San Diego adopts an ambitious, and legally binding, plan to cut emissions (Published December 18, 2015)
Source: Los Angeles Times
Climate Change Topics: California: Statewide / Greenhouse gas (GHG) reduction, mitigation /
(Posted December 18, 2015)

 

Coastal Flooding in California

Report Coastal Flooding in California - "Californians may see significant coastal flooding more often this winter (2015-16). With today's rising sea levels, sometimes all it takes is a high tide to cause flooding. When climate and weather come into the mix, floods can become worse and more frequent." Keywords: nuisance flooding (Published )
Source: United States. National Oceanic and Atmospheric Administration
Climate Change Topics: California: Statewide / Flooding / Sea level rise /
(Posted December 18, 2015)

 

Study: Climate change rapidly warming world's lakes

News article Study: Climate change rapidly warming world's lakes (Published December 16, 2015)
Source: U.S. National Aeronautics and Space Administration (NASA)
Climate Change Topics: Temperature /
(Posted December 17, 2015)

 

Water Resource Challenges and Opportunities for Water Technology Innovation

Report Water Resource Challenges and Opportunities for Water Technology Innovation - "This document outlines the impact of climate change on already-strained water resources, actions by the Obama Administration to address water resource challenges, and an aggressive two-part water innovation strategy to accelerate ongoing progress with the goals of: 1) Boosting water sustainability through the greater utilization of water-efficient and water reuse technologies; and 2) Promoting and investing in breakthrough R&D that reduces the price and energy costs of new water supply technology." (Published December 14, 2015)
Source: United States.
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted December 16, 2015)

 

Hacking the Drought (Folsom Dam)

News article Hacking the Drought (Folsom Dam) (Published December 14, 2015)
Source: Takepart
Climate Change Topics: Dams and reservoirs / Water supply, changes in supply, snowpack /
(Posted December 15, 2015)

 

San Jose's PG&E partnership can't preclude choice option (Opinion)

News article San Jose's PG&E partnership can't preclude choice option (Opinion) (Published December 14, 2015)
Source: San Jose Mercury News
Climate Change Topics: Community Choice Aggregation (CCA) /
(Posted December 14, 2015)

 

Here's what the Paris world climate agreement will do -- and what it won't

News article Here's what the Paris world climate agreement will do -- and what it won't (Published December 13, 2015)
Source: Los Angeles Times
Climate Change Topics: Global issues, human impacts / Greenhouse gas (GHG) reduction, mitigation / Politics, laws, United Nations, etc. /
(Posted December 14, 2015)

 

Producing Scientific and Strategic Guidance for California's Department of Water Resources

Report Producing Scientific and Strategic Guidance for California's Department of Water Resources - Poster by DWR's Climate Change Technical Advisory Group describing how they use global climate data to produce recommendations for California. (Published December 9, 2015)
Source: California. Dept. of Water Resources
Climate Change Topics: California: Statewide / Precipitation, Extreme Weather / Water supply, changes in supply, snowpack /
(Posted December 14, 2015)

 

Jerry Brown preparing to engage in 2016 ballot measure fight

News article Jerry Brown preparing to engage in 2016 ballot measure fight (Published December 10, 2015)
Source: Sacramento Bee
Climate Change Topics: California: Statewide / Politics, laws, United Nations, etc. /
(Posted December 10, 2015)

 

A Strategy for California @ 50 Million: Supporting California's Climate Change Goals: The Governor's Environmental Goals and Policy Report

Report A Strategy for California @ 50 Million: Supporting California's Climate Change Goals: The Governor's Environmental Goals and Policy Report - Ways to reach the state's goals to reduce greenhouse gas emissions even as the population increases. (Published November 23, 2015)
Source: California. Governor's Office of Planning and Research
Climate Change Topics: AB 32 / Adaptation / California: Statewide / Greenhouse gas (GHG) reduction, mitigation / Energy management and conservation / Land Use, environmental management systems, and regulation /
(Posted December 10, 2015)

 

Water Resources Highlighted in Climate Adaptation Plans

News article Water Resources Highlighted in Climate Adaptation Plans (Published December 7, 2015)
Source: Circle of Blue
Climate Change Topics: Adaptation / Water supply, changes in supply, snowpack /
(Posted December 8, 2015)

 

Water Storage a Critical Question for Climate Adaptation

News article Water Storage a Critical Question for Climate Adaptation (Published December 6, 2015)
Source: Circle of Blue
Climate Change Topics: Adaptation / Water supply, changes in supply, snowpack /
(Posted December 7, 2015)

 

California Supreme Court Strictly Interprets State Fully Protected Species Statute and Finds Greenhouse Gas Emissions Analysis Inadequate in Newhall Ranch EIR

News article California Supreme Court Strictly Interprets State Fully Protected Species Statute and Finds Greenhouse Gas Emissions Analysis Inadequate in Newhall Ranch EIR (Published December 2, 2015)
Source: Downey Brand
Climate Change Topics: California: Statewide / CEQA Guidelines /
(Posted December 3, 2015)

 

Poll: Californians say climate change a very serious problem

News article Poll: Californians say climate change a very serious problem (Published December 3, 2015)
Source: Associated Press
Climate Change Topics: California: Statewide / Politics, laws, United Nations, etc. /
(Posted December 3, 2015)

 

Scientists Urge Greater Attention to Groundwater in Climate Adaptation

News article Scientists Urge Greater Attention to Groundwater in Climate Adaptation (Published December 1, 2015)
Source: Circle of Blue
Climate Change Topics: Adaptation / Groundwater /
(Posted December 2, 2015)

 

Californians' Views on Global Warming

News article Californians' Views on Global Warming (Published December 2, 2015)
Source: Public Policy Institute of California
Climate Change Topics: California: Statewide / Politics, laws, United Nations, etc. /
(Posted December 2, 2015)

 

3.2 Millimeters: A Troubling Rise in Sea Level

News article 3.2 Millimeters: A Troubling Rise in Sea Level (Published December 1, 2015)
Source: New York Times
Climate Change Topics: Sea level rise /
(Posted December 1, 2015)

 

Earth is a wilder, warmer place since last climate deal made

News article Earth is a wilder, warmer place since last climate deal made (Published November 30, 2015)
Source: Associated Press
Climate Change Topics: Precipitation, Extreme Weather / Temperature /
(Posted November 30, 2015)

 

Bay Area communities gearing up to create their own power systems

News article Bay Area communities gearing up to create their own power systems (Published November 29, 2015)
Source: San Jose Mercury News
Climate Change Topics: California: Bay Area and Delta / Community Choice Aggregation (CCA) /
(Posted November 30, 2015)

 

Paris climate summit could bring historic deal on emissions, but likely won't halt climate change

News article Paris climate summit could bring historic deal on emissions, but likely won't halt climate change (Published November 29, 2015)
Source: Los Angeles Times
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation / Politics, laws, United Nations, etc. /
(Posted November 30, 2015)

 

This week's king tides bring danger of flooding, glimpse of future

News article This week's king tides bring danger of flooding, glimpse of future (Published November 24, 2015)
Source: San Francisco Chronicle
Climate Change Topics: California: Bay Area and Delta / Flooding / Sea level rise /
(Posted November 24, 2015)

 

The energy and emissions footprint of water supply for Southern California

Report The energy and emissions footprint of water supply for Southern California - "Bringing water to growing urban centers in Southern California is especially energy intensive, pushing local utilities to balance water security with factors such as the cost and carbon footprint of the various supply sources. To enhance water security, cities are expanding efforts to increase local water supply. But do these local sources have a smaller carbon footprint than imported sources? To answer this question and others related to the urban water-energy nexus, this study uses spatially explicit life cycle assessment to estimate the energy and emissions intensity of water supply for two utilities in Southern California: Los Angeles Department of Water and Power, which serves Los Angeles, and the Inland Empire Utility Agency, which serves the San Bernardino region." (Fang, A. J., et al., 2015, Geophysical Research Letters) (Published October 27, 2015)
Climate Change Topics: California: Water/Flood Protection Districts / Energy management and conservation / Greenhouse gas (GHG) increases / Water utilities guidance /
(Posted November 23, 2015)

 

Restoring California Meadows Could Help Combat Climate Change And Increase Water Supply

News article Restoring California Meadows Could Help Combat Climate Change And Increase Water Supply (Published November 20, 2015)
Source: Capital Public Radio
Climate Change Topics: California: Statewide / Ecosystem Services and Climate Change / Water supply, changes in supply, snowpack /
(Posted November 20, 2015)

 

A tale of two California droughts: Lessons amidst record warmth and dryness in a region of complex physical and human geography

Report A tale of two California droughts: Lessons amidst record warmth and dryness in a region of complex physical and human geography - "The state of California has experienced the worst drought in its historical record during 2012-2015. Adverse effects of this multiyear event have been far from uniformly distributed across the region, ranging from remarkably mild in most of California's densely populated coastal cities to very severe in more rural, agricultural, and wildfire-prone regions. This duality of impacts has created a tale of two very different California droughts—highlighting enhanced susceptibility to climate stresses at the environmental and socioeconomic margins of California. From a geophysical perspective, the persistence of related atmospheric anomalies has raised a number of questions regarding the drought's origins -- including the role of anthropogenic climate change. Recent investigations underscore the importance of understanding the underlying physical causes of extremes in the climate system, and the present California drought represents an excellent case study for such endeavors. Meanwhile, a powerful El Nino event in the Pacific Ocean offers the simultaneous prospect of partial drought relief but also an increased risk of flooding during the 2015-2016 winter -- a situation illustrative of the complex hydroclimatic risks California and other regions are likely to face in a warming world." (Swain, D., 2015, Geophysical Research Letters) (Published November 19, 2015)
Climate Change Topics: California: Statewide / Drought /
(Posted November 20, 2015)

 

Absurdly hot October as Earth sets 8th heat record this year

News article Absurdly hot October as Earth sets 8th heat record this year (Published November 19, 2015)
Source: Associated Press
Climate Change Topics: Temperature /
(Posted November 19, 2015)

 

CO2: Earth Passes Into 'Uncharted Territory'

News article CO2: Earth Passes Into 'Uncharted Territory' (Published November 19, 2015)
Source: KQED Radio
Climate Change Topics: Greenhouse gas (GHG) increases /
(Posted November 19, 2015)

 

Billions of People Depend on Water From Shrinking Snowpacks

News article Billions of People Depend on Water From Shrinking Snowpacks
Related Link: http://iopscience.iop.org/article/10.1088/1748-9326/10/11/114016/meta
(Published November 18, 2015)
Source: New York Times
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted November 18, 2015)

 

Coastal infrastructure: a typology for the next century of adaptation to sea-level rise

Report Coastal infrastructure: a typology for the next century of adaptation to sea-level rise - "Categorizing the choices in coastal infrastructure that are available to policy makers will allow for comparisons of their potential impacts on ecosystems and of their value in preparation for long-term sea-level rise. Although similar approaches have been described elsewhere in different policy contexts, this article focuses on evaluating physical infrastructure types -- including hybrid structures that combine landforms with concrete and steel elements -- based on historical differences in engineering practices. Such structures can be optimized for different phases of coastal adaptation and can provide multiple benefits (eg supporting ecosystems as well as minimizing flooding in coastal cities). Key factors in a geomorphological, ecological, and land-use context must be taken into account when selecting various infrastructure strategies, to ensure that they function as intended. The San Francisco Bay region provides an example of how this typology can be applied to help policy makers choose more successful strategies as coastal areas plan for sea-level rise." (Hill, K. 2015, Frontiers in Ecology and the Environment) (Published October 23, 2015)
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Flooding / Sea level rise /
(Posted November 18, 2015)

 

In a warming world, more rain can mean less water

News article In a warming world, more rain can mean less water (Published November 16, 2015)
Source: Christian Science Monitor
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted November 17, 2015)

 

Climate change is driving water cycle speed-up

News article Climate change is driving water cycle speed-up (Published November 16, 2015)
Source: Environmental Research Web
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Precipitation, Extreme Weather /
(Posted November 17, 2015)

 

What's the future for snowpack water supply?

News article What's the future for snowpack water supply? (Published November 12, 2015)
Source: Environmental Research Web
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted November 16, 2015)

 

The potential for snow to supply human water demand in the present and future

Report The potential for snow to supply human water demand in the present and future - "Runoff from snowmelt is regarded as a vital water source for people and ecosystems throughout the Northern Hemisphere (NH). Numerous studies point to the threat global warming poses to the timing and magnitude of snow accumulation and melt. But analyses focused on snow supply do not show where changes to snowmelt runoff are likely to present the most pressing adaptation challenges, given sub-annual patterns of human water consumption and water availability from rainfall. We identify the NH basins where present spring and summer snowmelt has the greatest potential to supply the human water demand that would otherwise be unmet by instantaneous rainfall runoff." Areas studied included California's Central Valley and the Colorado River Watershed. (Mankin, J., et al., 2015, Environmental Research Letters) (Published November 12, 2015)
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted November 16, 2015)

 

World's climate about to enter 'uncharted territory' as it passes 1C of warming

News article World's climate about to enter 'uncharted territory' as it passes 1C of warming (Published November 9, 2015)
Source: Guardian (U.K.)
Climate Change Topics: Temperature /
(Posted November 13, 2015)

 

Half of Weather Disasters Linked to Climate Change

News article Half of Weather Disasters Linked to Climate Change
Related Link: https://www.ncdc.noaa.gov/news/explaining-extreme-events-2014
(Published November 5, 2015)
Source: National Geographic
Climate Change Topics: Precipitation, Extreme Weather /
(Posted November 6, 2015)

 

Menlo Park: As the sea rises so should the urgency to tackle the problem locally, officials agree

News article Menlo Park: As the sea rises so should the urgency to tackle the problem locally, officials agree (Published November 6, 2015)
Source: Palo Alto Daily News
Climate Change Topics: California: Bay Area and Delta / Flooding / Sea level rise /
(Posted November 6, 2015)

 

A Tale of Two Northern European Cities: Meeting the Challenges of Sea Level Rise

News article A Tale of Two Northern European Cities: Meeting the Challenges of Sea Level Rise (Published November 5, 2015)
Source: Yale Environment 360
Climate Change Topics: Sea level rise /
(Posted November 5, 2015)

 

Safeguarding California: Implementation Action Plans: Draft Report

Report Safeguarding California: Implementation Action Plans: Draft Report - Recommendations for the water, agricultural, biodiversity and habitat, emergency management, energy, forestry, land use, oceans, public health, and transportation sectors. Input due by Nov. 30. (Published October 9, 2015)
Source: California. Natural Resources Agency
Climate Change Topics: Adaptation / Agriculture / California: Statewide / Ecosystems, Habitat, Threatened Species / Energy management and conservation / Global issues, human impacts / Sea level rise / Water supply, changes in supply, snowpack /
(Posted November 5, 2015)

 

Explaining Extreme Events of 2014 from a Climate Perspective

Report Explaining Extreme Events of 2014 from a Climate Perspective - Analyzes 32 major events from the past year. (American Meteorological Society) (Published October 29, 2015)
Climate Change Topics: Precipitation, Extreme Weather /
(Posted November 5, 2015)

 

State Water Agency Practices for Climate Adaptation

Report State Water Agency Practices for Climate Adaptation - "State water agencies across the country are starting to integrate climate change considerations into the Clean Water Act and Safe Drinking Water Act programs they administer. Short descriptions have been developed of innovative practices that state water agencies are currently implementing to reduce their vulnerability to climate-related impacts and to build resilience to climate change. These select state practices can serve as useful models for other state agencies seeking to make water programs more resilient to climate change. In addition, water resource planners and decision-makers from local and tribal governments and other entities may find these practices to be helpful." (Published October 24, 2015)
Source: United States. Environmental Protection Agency
Climate Change Topics: Adaptation / Ecosystems, Habitat, Threatened Species / Water quality / Water supply, changes in supply, snowpack /
(Posted November 5, 2015)

 

Wildfires may double erosion across a quarter of western US watersheds by 2050

News article Wildfires may double erosion across a quarter of western US watersheds by 2050 (Published November 3, 2015)
Source: Science Daily
Climate Change Topics: Water quality / Wildfires /
(Posted November 4, 2015)

 

S.F. voters define 'green' energy as city launches public power program

News article S.F. voters define 'green' energy as city launches public power program (Published November 4, 2015)
Source: San Francisco Chronicle
Climate Change Topics: Community Choice Aggregation (CCA) /
(Posted November 4, 2015)

 

Climate change creates flood of water jobs

News article Climate change creates flood of water jobs (Published October 31, 2015)
Source: San Francisco Chronicle
Climate Change Topics: Economic aspects, Costs /
(Posted November 2, 2015)

 

Restore wetlands for sake of infrastructure (Letter from Board director Richard Santos)

News article Restore wetlands for sake of infrastructure (Letter from Board director Richard Santos) (Published November 2, 2015)
Source: San Jose Mercury News
Climate Change Topics: California: Bay Area and Delta / Santa Clara Valley Water District / Sea level rise /
(Posted November 2, 2015)

 

Evaporation takes place differently than previously thought: Implications for global warming

News article Evaporation takes place differently than previously thought: Implications for global warming (Published October 22, 2015)
Source: Science Daily
Climate Change Topics: Water supply, changes in supply, snowpack /
(Posted October 29, 2015)

 

Harmful algal blooms and climate change: Preparing to forecast the future

News article Harmful algal blooms and climate change: Preparing to forecast the future (Published October 26, 2015)
Source: Science Daily
Climate Change Topics: Water quality /
(Posted October 29, 2015)

 

The effect of the El Nino-Southern Oscillation on U.S. regional and coastal sea level

Report The effect of the El Nino-Southern Oscillation on U.S. regional and coastal sea level - "Although much of the focus on future sea level rise concerns the long-term trend associated with anthropogenic warming, on shorter time scales, internal climate variability can contribute significantly to regional sea level. Such sea level variability should be taken into consideration when planning efforts to mitigate the effects of future sea level change. In this study, we quantify the contribution to regional sea level of the El Nino-Southern Oscillation (ENSO). Through cyclostationary empirical orthogonal function analysis (CSEOF) of the long reconstructed sea level data set and of a set of U.S. tide gauges, two global modes dominated by Pacific Ocean variability are identified and related to ENSO and, by extension, the Pacific Decadal Oscillation. By estimating the combined contribution of these two modes to regional sea level, we find that ENSO can contribute significantly on short time scales, with contributions of up to 20 cm along the west coast of the U.S. The CSEOF decomposition of the long tide gauge records around the U.S. highlights the influence of ENSO on the U.S. east coast. Tandem analyses of both the reconstructed and tide gauge records also examine the utility of the sea level reconstructions for near-coast studies." (Hamlingon, B. D., et al., 2015, Journal of Geophysical Research) (Published June 3, 2015)
Climate Change Topics: Precipitation, Extreme Weather / Sea level rise /
(Posted October 29, 2015)

 

Restoring wetlands is a green defense against rising bay (Opinion)

News article Restoring wetlands is a green defense against rising bay (Opinion) (Published October 24, 2015)
Source: San Jose Mercury News
Climate Change Topics: Ecosystem Services and Climate Change / Flooding / Sea level rise /
(Posted October 26, 2015)

 

California 2100: More frequent and more severe droughts and floods likely; El Nino and global warming work together to bring more extreme weather

News article California 2100: More frequent and more severe droughts and floods likely; El Nino and global warming work together to bring more extreme weather
Related Link: http://www.nature.com/ncomms/2015/151021/ncomms9657/full/ncomms9657.html
(Published October 21, 2015)
Source: Science Daily
Climate Change Topics: California: Statewide / Drought / Flooding / Precipitation, Extreme Weather /
(Posted October 22, 2015)

 

Increasing water cycle extremes in California and in relation to ENSO cycle under global warming

Report Increasing water cycle extremes in California and in relation to ENSO cycle under global warming - "Since the winter of 2013-2014, California has experienced its most severe drought in recorded history, causing statewide water stress, severe economic loss and an extraordinary increase in wildfires. Identifying the effects of global warming on regional water cycle extremes, such as the ongoing drought in California, remains a challenge. Here we analyse large-ensemble and multi-model simulations that project the future of water cycle extremes in California as well as to understand those associations that pertain to changing climate oscillations under global warming. Both intense drought and excessive flooding are projected to increase by at least 50% towards the end of the twenty-first century; this projected increase in water cycle extremes is associated with a strengthened relation to El Nino and the Southern Oscillation (ENSO) -- in particular, extreme El Nino and La Nina events that modulate California’s climate not only through its warm and cold phases but also its precursor patterns." (Yoon, J-H, et al., 2015, Nature Communications) (Published October 21, 2015)
Climate Change Topics: California: Statewide / Drought / Flooding / Precipitation, Extreme Weather /
(Posted October 22, 2015)

 

New Model Improves Predictions for How Climate Change Will Affect Fish Habitat

News article New Model Improves Predictions for How Climate Change Will Affect Fish Habitat (Published October 21, 2015)
Source: U.S. Geological Survey
Climate Change Topics: Ecosystems, Habitat, Threatened Species /
(Posted October 21, 2015)

 

Accounting for groundwater in stream fish thermal habitat responses to climate change

Report Accounting for groundwater in stream fish thermal habitat responses to climate change - "Forecasting climate change effects on aquatic fauna and their habitat requires an understanding of how water temperature responds to changing air temperature (i.e., thermal sensitivity). Previous efforts to forecast climate effects on brook trout (Salvelinus fontinalis) habitat have generally assumed uniform air-water temperature relationships over large areas that cannot account for groundwater inputs and other processes that operate at finer spatial scales. We developed regression models that accounted for groundwater influences on thermal sensitivity from measured air-water temperature relationships within forested watersheds in eastern North America (Shenandoah National Park, Virginia, USA, 78 sites in nine watersheds). We used these reach-scale models to forecast climate change effects on stream temperature and brook trout thermal habitat, and compared our results to previous forecasts based upon large-scale models. Observed stream temperatures were generally less sensitive to air temperature than previously assumed, and we attribute this to the moderating effect of shallow groundwater inputs. Predicted groundwater temperatures from air-water regression models corresponded well to observed groundwater temperatures elsewhere in the study area. Predictions of brook trout future habitat loss derived from our fine-grained models were far less pessimistic than those from prior models developed at coarser spatial resolutions. However, our models also revealed spatial variation in thermal sensitivity within and among catchments resulting in a patchy distribution of thermally suitable habitat. Habitat fragmentation due to thermal barriers therefore may have an increasingly important role for trout population viability in headwater streams. Our results demonstrate that simple adjustments to air–water temperature regression models can provide a powerful and cost-effective approach for predicting future stream temperatures while accounting for effects of groundwater." (Snyder, C. D., et al., 2015, Ecological Applications) (Published July 1, 2015)
Climate Change Topics: Ecosystem Services and Climate Change /
(Posted October 21, 2015)

 

How Has Human-induced Climate Change Affected California Drought Risk?

Report How Has Human-induced Climate Change Affected California Drought Risk? - "The current California drought has cast a heavy burden on statewide agriculture and water resources, further exacerbated by concurrent extreme high temperatures. Furthermore, industrial-era global radiative forcing brings into question the role of long-term climate change on CA drought. How has human-induced climate change affected California drought risk? Here, observations and model experimentation are applied to characterize this drought employing metrics that synthesize drought duration, cumulative precipitation deficit, and soil moisture depletion. The model simulations show that increases in radiative forcing since the late 19th Century induces both increased annual precipitation and increased surface temperature over California, consistent with prior model studies and with observed long-term change. As a result, there is no material difference in the frequency of droughts defined using bivariate indicators of precipitation and near-surface (10-cm) soil moisture, because shallow soil moisture responds most sensitively to increased evaporation driven by warming, which compensates the increase in the precipitation. However, when using soil moisture within a deep root zone layer (1-m) as co-variate, droughts become less frequent because deep soil moisture responds most sensitively to increased precipitation. The results illustrate the different land surface responses to anthropogenic forcing that are relevant for near-surface moisture exchange and for root zone moisture availability. The latter is especially relevant for agricultural impacts as the deep layer dictates moisture availability for plants, trees, and many crops. The results thus indicate the net effect of climate change has made agricultural drought less likely, and that the current severe impacts of drought on California’s agriculture has not been substantially caused by long-term climate changes." (Cheng, L., 2015, Journal of Climate) (Published October 19, 2015)
Climate Change Topics: Agriculture / California: Statewide / Drought /
(Posted October 21, 2015)

 

Gov. Brown's link between climate change and wildfires is unsupported, fire experts say

News article Gov. Brown's link between climate change and wildfires is unsupported, fire experts say (Published October 19, 2015)
Source: Los Angeles Times
Climate Change Topics: Wildfires /
(Posted October 19, 2015)

 

San Francisco Bay: Race to build wetlands is needed to stave off sea-level rise, scientists say

News article San Francisco Bay: Race to build wetlands is needed to stave off sea-level rise, scientists say
Related Link: http://baylandsgoals.org/#/science-update-2015/
(Published October 19, 2015)
Source: San Jose Mercury News
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted October 19, 2015)

 

To Take Earth's Pulse, You Have to Fly High

News article To Take Earth's Pulse, You Have to Fly High (Published October 15, 2015)
Source: National Geographic
Climate Change Topics: Ecosystems, Habitat, Threatened Species / Water supply, changes in supply, snowpack /
(Posted October 19, 2015)

 

The Baylands and Climate Change: What We Can Do: Baylands Ecosystem Habitat Goals Science Update 2015

Report The Baylands and Climate Change: What We Can Do: Baylands Ecosystem Habitat Goals Science Update 2015 - "The wetlands at the shore of the San Francisco Bay are an integral part of the region’s iconic beauty, and they provide numerous benefits for our economy and quality of life. These baylands support abundant wildlife, clean water, open space for recreation, and flood protection. More than 100 scientists who study the bay, its wetlands, and watersheds have concluded that now is the time to ensure that these ecosystems continue to provide such benefits. Sea-level rise and climatic and other changes have brought about a critical moment. The extensive bay marshes and mudflats can be sustained for decades to come, but it will require a bold approach to restoring their natural processes. Meanwhile, we must also accelerate the concerted action of the past two decades to restore tidal habitats." (Published October 15, 2015)
Climate Change Topics: California: Bay Area and Delta / Ecosystems, Habitat, Threatened Species / Sea level rise /
(Posted October 19, 2015)

 

California pushes to make landfills food-free

News article California pushes to make landfills food-free (Published October 12, 2015)
Source: Sacramento Bee
Climate Change Topics: Greenhouse gas (GHG) reduction, mitigation /
(Posted October 16, 2015)

 

This is how rising seas will reshape the face of the United States

News article This is how rising seas will reshape the face of the United States
Related Link: http://www.pnas.org/content/early/2015/10/07/1511186112.abstract
(Published October 12, 2015)
Source: Washington Post
Climate Change Topics: Sea level rise /
(Posted October 13, 2015)

 

California governor signs aggressive climate change bill

News article California governor signs aggressive climate change bill (Published October 9, 2015)
Source: Associated Press
Climate Change Topics: AB 32 / California: Statewide / Energy management and conservation / Greenhouse gas (GHG) reduction, mitigation /
(Posted October 13, 2015)

 

Carbon choices determine US cities committed to futures below sea level

Report Carbon choices determine US cities committed to futures below sea level - "Based on detailed topographic and population data, local high tide lines, and regional long-term sea-level commitment for different carbon emissions and ice sheet stability scenarios, we compute the current population living on endangered land at municipal, state, and national levels within the United States. For unabated climate change, we find that land that is home to more than 20 million people is implicated and is widely distributed among different states and coasts. The total area includes 1,185-1,825 municipalities where land that is home to more than half of the current population would be affected, among them at least 21 cities exceeding 100,000 residents. Under aggressive carbon cuts, more than half of these municipalities would avoid this commitment if the West Antarctic Ice Sheet remains stable. Similarly, more than half of the US population-weighted area under threat could be spared. We provide lists of implicated cities and state populations for different emissions scenarios and with and without a certain collapse of theWest Antarctic Ice Sheet. Although past anthropogenic emissions already have caused sea-level commitment that will force coastal cities to adapt, future emissions will determine which areas we can continue to occupy or may have to abandon." Full text and supplemental information (which lists specific cities) available. (Strauss, B. H. et al., 2015, Procceedings of the National Academies of Science) (Published October 12, 2015)
Climate Change Topics: Greenhouse gas (GHG) increases / Sea level rise /
(Posted October 13, 2015)

 

Regional Surface Climate Conditions in CMIP3 and CMIP5 for the United States: Differences, Similarities, and Implications for the U.S. National Climate Assessment

Report Regional Surface Climate Conditions in CMIP3 and CMIP5 for the United States: Differences, Similarities, and Implications for the U.S. National Climate Assessment - Compares two climate scenarios. "Both sets of simulations for the moderate to high emissions scenarios indicate that future warming will increase temperatures well beyond typical historical occurrences. Along with average temperatures, the models also project changes for a variety of climate extremes, including maximum temperatures, which they project will increase. Most of the differences between the CMIP3 and CMIP5 projections are likely due to the CMIP5 scenarios covering a larger range of possible future greenhouse gas concentrations, resulting in a wider range of climate outcomes in the CMIP5 simulations. In both sets of simulations, projections for precipitation changes indicate that the United States straddles the transition zone between wetter conditions across the higher mid-latitudes which includes the northern U.S. to drier conditions in the subtropics which includes the U.S. southwest in the winter and spring. Regional patterns of projected precipitation changes do vary somewhat between CMIP3 and CMIP5, reflecting both differences in scenarios and the fact that precipitation projections tend to vary more widely among different climate models." (Published July 31, 2015)
Source: United States. National Oceanic and Atmospheric Administration
Climate Change Topics: Models and Tools / Precipitation, Extreme Weather / Temperature /
(Posted October 13, 2015)

 

The very weird physics of sea-level changes

News article The very weird physics of sea-level changes (Published October 8, 2015)
Source: Boston Globe
Climate Change Topics: Sea level rise /
(Posted October 9, 2015)

 

California Raises the Bar on Its Ambitious Clean Energy Goals

News article California Raises the Bar on Its Ambitious Clean Energy Goals (Published October 7, 2015)
Source: KQED Radio
Climate Change Topics: AB 32 / California: Statewide / Energy management and conservation / Greenhouse gas (GHG) reduction, mitigation /
(Posted October 8, 2015)

 

Restoring Marshland and Protecting Bay Shoreline From Rising Tides and Storm Events

News article Restoring Marshland and Protecting Bay Shoreline From Rising Tides and Storm Events (Published September 25, 2015)
Source: KQED Radio
Climate Change Topics: California: Bay Area and Delta / Ecosystem Services and Climate Change / Sea level rise /
(Posted September 25, 2015)

 

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