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The document presents evidence for global warming, citing a 1.5 degree Fahrenheit increase in global average temperature since 1880 and a rise in atmospheric CO2 concentration from 280ppm in 1880 to 399ppm in 2014. It identifies fossil fuels as the primary cause and references the National Climate Assessment and IPCC for projections on sea level rise and future temperature increases under scenarios of continued CO2 emissions.

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  • Scientific consensus on warming trends was established decades ago, with Dr. James Hansen stating in 1988 Senate Testimony that current temperatures represent a real warming trend with 99% confidence.
  • Global average temperatures have risen by 1.5 degrees Fahrenheit since 1880, according to the IPCC AR5.
  • Atmospheric CO2 concentrations have increased significantly from 280ppm in 1880 to 399ppm in 2014.
  • Future risks, including temperature increases between 2070 and 2099, are magnified by the continued use of fossil fuels and a scenario of continued increase in CO2 emissions.

Cite the original document

APA
Union of Concerned Scientists (2015). Climate Science vs. Fossil Fuel Fiction. https://www.ucs.org/sites/default/files/attach/2015/03/science-sources.pdf
Chicago
Union of Concerned Scientists. Climate Science vs. Fossil Fuel Fiction. 2015. https://www.ucs.org/sites/default/files/attach/2015/03/science-sources.pdf.
Wikipedia
{{cite report |author=Union of Concerned Scientists |title=Climate Science vs. Fossil Fuel Fiction |date=March 2015 |url=https://www.ucs.org/sites/default/files/attach/2015/03/science-sources.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}
BibTeX
@techreport{unionofconcernedscientists2015climate, author = {{Union of Concerned Scientists}}, title = {{Climate Science vs. Fossil Fuel Fiction}}, institution = {Union of Concerned Scientists}, year = {2015}, month = mar, url = {https://www.ucs.org/sites/default/files/attach/2015/03/science-sources.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }

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