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Climate Change: Evidence and Causes

Climate Change Evidence and Causes Booklet

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The US National Academy of Sciences and The Royal Society have released “Climate Change: Evidence & Causes,” a new publication produced jointly by the two institutions. Written by a UK-US team of leading climate scientists and reviewed by climate scientists and others, the publication is intended as a brief, readable reference document for decision makers, policy makers, educators, and other individuals seeking authoritative information on the some of the questions that continue to be asked.

The publication makes clear what is well-established and where understanding is still developing. It echoes and builds upon the long history of climate-related work from both national academies, as well as on the newest climate-change assessment from the United Nations’ Intergovernmental Panel on Climate Change. It touches on current areas of active debate and ongoing research, such as the link between ocean heat content and the rate of warming.

Permanent link to this article: http://nas-sites.org/americasclimatechoices/more-resources-on-climate-change/climate-change-evidence-and-causes/

Figure 2. Measurements of the Sun’s energy incident on Earth show no net increase in solar forcing during the past 30 years, and therefore this cannot be responsible for warming during that period. The data show only small periodic amplitude variations associated with the Sun’s 11-year cycle. Figure by Keith Shine. Source: TSI data from Physikalisch-Meteorologisches Observatorium Davos, Switzerland, adjusted down by 4.46 W m-2 to agree with the 2008 solar minimum data from Kopp and Lean, 2011; temperature data from the HadCRUT4 dataset, UK Met Office, Hadley Centre

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