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Climate Change Impacts in the United States Third National Climate Assessment [Name] [Date] Northwest.

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Presentation on theme: "Climate Change Impacts in the United States Third National Climate Assessment [Name] [Date] Northwest."— Presentation transcript:

1 Climate Change Impacts in the United States Third National Climate Assessment [Name] [Date] Northwest

2 Northwest Convening Lead Authors – Philip Mote, Oregon State University – Amy K. Snover, University of Washington Lead Authors – Susan Capalbo, Oregon State University – Sanford D. Eigenbrode, University of Idaho – Patty Glick, National Wildlife Federation – Jeremy Littell, U.S. Geological Survey – Richard Raymondi, Idaho Department of Water Resources – Spencer Reeder, Cascadia Consulting Group

3 Water-related Challenges Changes in the timing of streamflow related to changing snowmelt have been observed and will continue, reducing the supply of water for many competing demands and causing far-reaching ecological and socioeconomic consequences.

4 Observed Shifts in Streamflow Timing Figure source: adapted from Fritze et al. 2011

5 Future Shift in Timing of Stream Flows Reduced Summer Flows Figure source: adapted from Elsner et al. 2010

6 Coastal Vulnerabilities In the coastal zone, the effects of sea level rise, erosion, inundation, threats to infrastructure and habitat, and increasing ocean acidity collectively pose a major threat to the region.

7 Projected Relative Sea Level Rise for the Latitude of Newport, Oregon Data from NRC 2012

8 Rising Sea Levels and Changing Flood Risks in Seattle Figure source: Seattle Public Utilities

9 Adapting the Nisqually River Delta to Sea Level Rise Photo credits: (left) Jesse Barham, U.S. Fish and Wildlife Service; (right) Jean Takekawa, U.S. Fish and Wildlife Service

10 Impacts on Forests The combined impacts of increasing wildfire, insect outbreaks, and tree diseases are already causing widespread tree die-off and are virtually certain to cause additional forest mortality by the 2040s and long-term transformation of forest landscapes. Under higher emissions scenarios, extensive conversion of subalpine forests to other forest types is projected by the 2080s.

11 Forest Mortality Photo credit: Jeremy Littell, USGS

12 Insects and Fire in Northwest Forests

13 Adapting Agriculture While the agriculture sector’s technical ability to adapt to changing conditions can offset some adverse impacts of a changing climate, there remain critical concerns for agriculture with respect to costs of adaptation, development of more climate resilient technologies and management, and availability and timing of water.

14 Climate Change Impacts in the United States Third National Climate facebook.com/usgcrp #NCA2014 [Name & Contact Info]


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