Climate change  

"I don't believe in global warming"-- Banksy

In 2013, the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report concluded, "It is Template:Em that human influence has been the dominant cause of the observed warming since the mid-20th century." The largest human influence has been the emission of greenhouse gases such as carbon dioxide, methane, and nitrous oxide. In view of the dominant role of human activity in causing it, the phenomenon is sometimes called "Template:Em global warming" or "Template:Em climate change." Climate model projections summarized in the report indicated that during the 21st century, the global surface temperature is likely to rise a further Template:Convert to Template:Convert depending on the rate of greenhouse gas emissions. These findings have been recognized by the national science academies of the major industrialized nations The 2005 statement added Japan, Russia, and the US. The 2007 statement added Mexico and South Africa. The Network of African Science Academies and the Polish Academy of Sciences have issued separate statements. Professional scientific societies include American Astronomical Society, American Chemical Society, American Geophysical Union, American Institute of Physics, American Meteorological Society, American Physical Society, American Quaternary Association, Australian Meteorological and Oceanographic Society, Canadian Foundation for Climate and Atmospheric Sciences, Canadian Meteorological and Oceanographic Society, European Academy of Sciences and Arts, European Geosciences Union, European Science Foundation, Geological Society of America, Geological Society of Australia, Geological Society of London-Stratigraphy Commission, InterAcademy Council, International Union of Geodesy and Geophysics, International Union for Quaternary Research, National Association of Geoscience Teachers, National Research Council (US), Royal Meteorological Society, and World Meteorological Organization.}} and are not disputed by any scientific body of national or international standing.