Fourth National Climate Assessment|Volume I

I am posting this report in hopes that Americans  will read it and learn what all humans are facing. Every human being must be made aware of  the severity of climate change and how it will personally affect them and their family. Please pass the report to your friends and family. We are facing an extintion event of human beings caused by human beings. 

This document responds to requirements of Section 106 of the U.S. Global Change Research Act of 1990 (P.L. 101-606, <;). It does not express any regulatory policies of the United States or any of its agencies, or make any findings of fact that could serve as predicates of regulatory action. Agencies must comply with required statutory and regulatory processes before they could rely on any statements in the document or by the USGCRP as basis for regulatory action.

This document was prepared in compliance with Section 515 of the Treasury and General Government Appropriations Act for Fiscal Year 2001 (P.L. 106-554) and information quality guidelines issued by the Department of Commerce / National Oceanic and Atmospheric Administration pursuant to Section 515 (<;). For purposes of compliance with Section 515, this document is deemed a “highly influential scientific assessment” (HISA). The report graphics follow the ISO 19115 standard which includes the necessary information to achieve reproducibility.

In all cases, permissions were secured by the U.S. Government to use and/or adapt copyrighted material contained in this document. High-resolution art is available at, with
accompanying captions providing source and credit information.

First published 2017

Fourth National Climate Assessment | Volume I CSSR2017_FullReport

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