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Third National Climate Assessment Released

The U.S. Global Change Research Program has released the Third National Climate Assessment, a comprehensive scientific report detailing climate change impacts across the United States.
Third National Climate Assessment Released

Hurricane Sandy barrels down on the North Atlantic coast.

The U.S. Global Change Research Program has released the Third National Climate Assessment, which confirms that climate change is affecting every region of the country and key sectors of the U.S. economy and society, underscoring the need to combat the threats climate change presents and increase the preparedness and resilience of American communities. 

The findings of the Third National Climate Assessment are fully traceable and supported by metadata through the Global Change Information System (GCIS), a new gateway to Federal global change information that delivers on goals set in USGCRP’s 2012–2021 Strategic Plan. The GCIS enables traceability between environmental data streams (such as observations from sensors and outputs from models) and the resulting scientific findings and publications. Going forward, the GCIS is intended to expand to provide this traceability for other key reports. 
 
The Third National Climate Assessment was developed over four years by hundreds of the Nation’s top climate scientists and technical experts, guided by a 60-member Federal Advisory Committee, and informed by extensive input from the public and outside organizations gathered through town hall meetings, public comment opportunities, and technical workshops across the country. 

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