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 With increasing levels of greenhouse gases causing our climate to change, it is important to understand exactly where these gases come from and how they disperse in the atmosphere A new dataset, produced by the European Space Agency's Climate Change Initiative, provides a detailed view of carbon dioxide and methane – two of the most important humanmade gases The Atmosphere Today Begin with the Year button set to TodayNote the average global (land and ocean) temperature, shown in the thermometer above the graphic Record the concentration of the three primary greenhouse gases, CO 2, CH 4, and N 2 O in the table on your answer sheet Note that the N 2 O and CH 4 concentrations are in parts per billion In otherDownload and use 4,000 greenhouse effect stock photos for free Thousands of new images every day Completely Free to Use Highquality videos and images from Greenhouse Stock Illustrations 21 729 Greenhouse Stock Illustrations Vectors Clipart Dreamstime Greenhouse effect clipart ...