Climate Science Special Report

| November 6, 2017 | Leave a Comment

Earth and North America from Space - digitally restored by Royce Bair | Flickr | CC BY-NC-ND 2.0

Item Link: Access the Resource

Media Type: Report / Policy Brief

Date of Publication: November 3, 2017

Year of Publication: 2017

Publication City: Washington, DC

Publisher: U.S. Global Climate Change Research Program

Author(s): D..J. Wuebbles, D.W. Fahey, K.A. Hibbard, B. DeAngelo, S. Doherty, K. Hayhoe, R. Horton, J.P. Kossin, P.C. Taylor, A.M. Waple, C.P. Weaver

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Fourth National Climate Assessment (NCA4), Volume I

This report is an authoritative assessment of the science of climate change, with a focus on the United States. It represents the first of two volumes of the Fourth National Climate Assessment, mandated by the Global Change Research Act of 1990.

“This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence.”

You can access the full report here.

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  • Tryingtohelp

    What happened to the link to the full report?

    • Thank you for your note, the full report is accessible through this link: The page has the report separated into chapters due to its size, but it should all be there. Please let me know if you have any trouble accessing it.