oAdaptive capacity of humans is high but indigenous groups are more vulnerable.
oFarming output in the U.S. Great Plains and Canada's Prairies would decline, while some areas would benefit.
oWestern watersheds that rely on snowmelt would peak earlier in spring, possibly reducing summer flows.
oPrairie wetlands, alpine tundra and cold water ecosystems would be at risk and effective adaptation is unlikely.
oSea level rise would cause erosion, flooding, loss of wetlands and storm surges, especially in Florida and much of the Atlantic Coast.