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Climate Science Special Report: Fourth National Climate Assessment, Volume I

In 2017, the US government released the first volume of its Fourth National Climate Assessment (NCA4), which was "designed to be an authoritative assessment of the science of climate change, with a focus on the United States." Based on an extensive body of peer-reviewed scientific research and datasets, this report concluded that "it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming [and other global climate changes] since the mid-20th century." Here, readers can download the report's 36-page executive summary, which is written for broad audiences, or the 477-page full report as PDFs. Individual PDFs of the report's 15 chapters are also available, as are PDFs of its public comments and peer reviews. Each chapter focuses on a particular topic and includes key findings, regional analyses, and traceable accounts of supporting evidence, along with an assessment of the state of the science regarding that topic. With the National Oceanic and Atmospheric Administration leading thirteen federal agencies in its preparation, NCA4 was produced by Congressional mandate under the Global Change Research Act of 1990.
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GEM Subject
Date of Scout Publication
December 14th, 2018
Date Of Record Creation
December 10th, 2018 at 3:55pm
Date Of Record Release
December 11th, 2018 at 10:49am
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Subject: Comment On: Climate Science Special Report: Fourth National Climate Assessment, Volume I
Posted By: rdipner
Date Posted: 12/14/18 11:50am
Short sighted and one sided. The report does nor provide alternate or divergent views. It also considers a vert short time view for climate vs. weather change.