1 Adapt, Flee, or Perish J. T. Andrew J. T. Andrew J. T. Andrew J. T. Andrew Calif. Department of Water Resources Calif. Department of Water Resources Calif. Department of Water Resources Calif. Department of Water Resources Public Health Working Group Public Health Working Group Public Health Working Group Public Health Working Group September 14, 2009 September 14, 2009 September 14, 2009 September 14, 2009 Sacramento, California Sacramento, California Sacramento, California Sacramento, California Today Today’ s Topics s Topics Projected impacts to water resources from climate Projected impacts to water resources from climate change change Climate change mitigation in the water sector Climate change mitigation in the water sector Adaptation to climate change in the water sector Adaptation to climate change in the water sector Climate change and water quality Climate change and water quality Climate Change Impacts on Climate Change Impacts on California California’ s Water Resources s Water Resources Reduced snowpack, impacting water Reduced snowpack, impacting water supply and hydropower supply and hydropower Earlier snowmelt results in increased Earlier snowmelt results in increased flood control demand on reservoir flood control demand on reservoir space space Higher water temperatures impacts Higher water temperatures impacts ecosystem ecosystem Sea level rise impacts the Delta, Sea level rise impacts the Delta, threatens levees and increases salinity threatens levees and increases salinity Increased demand in all sectors Increased demand in all sectors cars and trucks = 40% energy = 33% industrial = 20% agriculture = 6% waste = 1% California’s GHG Emissions Water, Energy and Climate Change Water, Energy and Climate Change Future water management activities must carefully consider strategies to reduce greenhouse gas emissions. y
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Adapt, Flee, or Perish
J. T. AndrewJ. T. AndrewJ. T. AndrewJ. T. AndrewCalif. Department of Water ResourcesCalif. Department of Water ResourcesCalif. Department of Water ResourcesCalif. Department of Water ResourcesPublic Health Working GroupPublic Health Working GroupPublic Health Working GroupPublic Health Working GroupSeptember 14, 2009September 14, 2009September 14, 2009September 14, 2009Sacramento, CaliforniaSacramento, CaliforniaSacramento, CaliforniaSacramento, California
TodayToday’’s Topicss Topics
�� Projected impacts to water resources from climate Projected impacts to water resources from climate
changechange
�� Climate change mitigation in the water sectorClimate change mitigation in the water sector
�� Adaptation to climate change in the water sectorAdaptation to climate change in the water sector
�� Climate change and water qualityClimate change and water quality
Climate Change Impacts on Climate Change Impacts on
CaliforniaCalifornia’’s Water Resourcess Water Resources
�� Reduced snowpack, impacting water Reduced snowpack, impacting water
supply and hydropowersupply and hydropower
�� Earlier snowmelt results in increased Earlier snowmelt results in increased
flood control demand on reservoir flood control demand on reservoir
space space
�� Higher water temperatures impacts Higher water temperatures impacts
ecosystemecosystem
�� Sea level rise impacts the Delta, Sea level rise impacts the Delta,
threatens levees and increases salinitythreatens levees and increases salinity
�� Increased demand in all sectorsIncreased demand in all sectors
cars and trucks = 40% energy = 33%
industrial = 20% agriculture = 6% waste = 1%
California’s GHG Emissions
Water, Energy and Climate ChangeWater, Energy and Climate Change
Future water
management activities
must carefully consider
strategies to reduce
greenhouse gas
emissions.
yy
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Governor’s Climate Action Team
Water-Energy Subgroup
• Water conservation
• Water recycling
• Energy intensity of water
systems
• Urban runoff and
stormwater reuse
• Renewable energy
production
O’Shaughnessy Dam
Adaptation is a Necessity
Climate Change Water Adaptation White PaperClimate Change Water Adaptation White Paper
Climate Change & Water QualityClimate Change & Water QualityIndirect EffectsIndirect Effects
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�� Climate change presents significant challenges for Climate change presents significant challenges for the management of Californiathe management of California’’s water resources.s water resources.
�� California water managers must focus on California water managers must focus on mitigation and especially adaptation.mitigation and especially adaptation.
�� Climate change responses must be thoughtfully Climate change responses must be thoughtfully integrated with water supply reliability, integrated with water supply reliability, environmental protection, public safety, and public environmental protection, public safety, and public health actions.health actions.
�� We must embrace an entirely new way of thinking We must embrace an entirely new way of thinking about water resources planning and management. about water resources planning and management.
California Water Management California Water Management