GEOG 2EI3 Lecture 7: Lecture 7-Climate Change
25 Jan 2019
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Document Summary
Lecture 7- climate change: since the 19th century, average global temperature has increased by 0. 85-+0. 2 degrees celsius, variation in global average surface temperature between 1856, 2000 warmest year since 1850. Scientific explanations of climate change: strong consensus that increase in greenhouse gases is from human activities. Degrees of change: affects almost every aspect of our way of life will be profoundly changed, human health, communities and infrastructure, resource industries, service industries, security and trade. Communities and infrastructure is the most difficult to predict what will be the impact of climate change. Ratification of the protocol took effect when ratified by russia in 2004: binding under international law, canada was supposed to reduce our emissions by 6, g. w. The main greenhouse gases: carbon dioxide, methane (21x more warming than co2, nitrous oxide, cfcs and perflouorocarbon, and sulphur hexa-fluoride are left out of the kyoto agreement, but have higher warming capacity.
