Climate change is apparent now across our nation and around the world.  Trends observed in recent decades include rising temperatures, increasing heavy downpours, rising sea level, longer growing seasons, reductions in snow and ice, and changes in the amounts and timing of river flows.  Scientists project these trends will continue, with larger changes resulting from higher emissions of heat-trapping gases, and smaller changes from lower emissions.

These climate-related changes are already affecting the natural world and the communities and economies that depend on it.  Many ecosystems and species are at risk.  Living systems provide jobs, food, clean water, protection from storms, health benefits, and many other vital ecosystem services that support people, communities, and economies in the United Sates and around the world.  We must begin now to mitigate those impacts that are unmanageable and to adapt to those impacts that are unavoidable.

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