Geography 1100 Study Guide - Cold Days, Anthropocene, Paul J. Crutzen
3 Mar 2014
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Document Summary
Carbon dioxide comes from multiple sources, some completely natural: ex. Volcanoes send huge amounts of co2 into the atmosphere, extremely small compared to human impact: every week in china they produce a new coal electric plant. Carbon will continue to rise, almost impossible to stop (cid:0) warming will continue. Per capita basis of emissions, china is much better than a lot of other countries including the us and canada. It"s getting warmer around the globe, but not at the same rate. Carbon dioxide contributes to 57% of the world"s greenhouse gases. Today"s co2 concentration is at 400 ppm. Predicted to push back permafrost and tree lines further inland in polar environments and climate change. Human activities add 1. 5 watts per square meter (radiative forcing: greenhouse gases, ozone, surface albedo, total aerosol, linear. Change in climate will cause a new warmer average and an increase in variance: possibly less cold days, more hot days, and even more very hot days.
