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Just where is all that global warming pollution coming from?
The Northeast pumps out an awful lot of carbon dioxide, but the Southeast, Midwest and Southern California are also responsible for voluminous pollution that billows out each day.
The precise sources of carbon dioxide have now been mapped, with 100-times more detail than was previously available, by Vulcan project researchers at Purdue University.
The high-resolution, interactive maps combines emissions data from power plants, factories and vehicles, and produces maps and movies that compare the relative contribution of pollution from various parts of the country on an hourly basis. One of the most striking things one sees when watching the animations is the day-night "breathing" cycle of our pollution, with a long exhale of pollution all day, followed by a sharp decline each night. Seasonal spikes – such as those when hot days prompt millions of Americans to turn up their air conditioners – are also evident.
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