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Pro: Climate Models Have Been Demonstrated to be Accurate. From NASA By Alan Buis,NASA’s Jet Propulsion Laboratory An animation of a GISS (Goddard Institute for Space Studies) climate model simulation made for the United Nations’ Intergovernmental Panel on Climate Change Fourth Assessment Report, showing five-year averaged surface air temperature anomalies in degrees Celsius from 1880

Pro: Land temperature records clearly demonstrate the influence of humans on warming the climate climate from preindustrial times From NASA Earth Observatory The world is getting warmer. Thermometer readings around the world have been rising since the Industrial Revolution, and the causes are a blend of human activity and some natural variability—with the preponderance of evidence saying

Pro: Warming in Man-made The Intergovernmental Panel on Climate Change (IPCC) stated in its Summary for Policymakers in 2013: ‘Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished,

Pro: Surface Temperature Measurements are Accurate A new assessment of NASA’s record of global temperatures revealed that the agency’s estimate of Earth’s long-term temperature rise in recent decades is accurate to within less than a tenth of a degree Fahrenheit, providing confidence that past and future research is correctly capturing rising surface temperatures. …. Another

Pro: Official Government Data Shows an Alarming Rapid Rise in Temperature Over 140 years NASA’s Goddard Institute for Space Studies (GISS) is the original organization to raise the warning on global temperature increases, due to increasing carbon dioxide in Earth’s atmosphere, during an address to the U.S. Senate by Dr. James Hansen in June 19881. NASA