Here is a most valuable document. This appendix provides additional information about climate science. It expands on the “Our Changing Climate” section* by providing more details on what is happening to climate, how we know that these changes are mainly due to human activities, and what changes are projected for the future.
*The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future. A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences.