SOC 135 Lecture Notes - Smog, Environmental Policy, American Petroleum Institute
Document Summary
Climate stability : are humans causing climate change, the hypothesis is relatively straightforward: in various ways, but especially by burning fossil fuels, we"ve dramatically increased greenhouse gas emissions. Greenhouse gases: carbon dioxide isn"t the only problematic greenhouse gas, methane and nitrous oxide play a role too, here a major contributor is the raising of animals for food, which accounts for between. 5% and 20% of all greenhouse gas emissions. The hypothesized effect: because the historical temperature records are incomplete, scientists introduce corrections. In other words, do these measurements show warming simply because a number of the temperature stations are near towns that have been growing: no. This effect is likely to be strongest on still nights, yet trends from data recorded on still nights are similar to those on windy nights; Temperature readings from non-heat-island stations show a similar trend to those from heat-island stations; and.
