Per the Global Change Research Act of 1990, the government must complete an assessment on global warming every four years. President Bush’s Administration was to issue the report in 2004 but refused to do so, motivating several environmental non-governmental organizations (ENGOs) to sue. Federal District Court Judge Saundra Armstrong found the Bush et al. in violation of the Act, forcing the Administration to yield the “Scientific Assessment of the Effects of Global Change on the United States.”
The report combines knowledge from previous works, including the most recent Assessment Report by the instrumental UN Intergovernmental Panel on Climate Change (IPCC). It notes multifarious effects of global warming on many aspects of United States society.
Check out the report here.
Also, the Center for Biological Diversity is a backbone of the sustainability movement – frankly, they’re awesome. You can learn more about ’em here,