GEOG 102 Lecture Notes - Lecture 22: Paul J. Crutzen, Atmospheric Chemistry, Montreal Protocol
Document Summary
Synthetic compounds fist created in the 1950"s and used primarily as refrigerants and as propellants. The role of these compounds in the destruction of the ozone layer led to the signing of an international agreement (the montreal protocol) Geological epoch defined by atmospheric chemist paul crutzen to acknowledge the central role humans play in shaping the earth"s environment. The primeval supercontinent, hypothesized by alfred wegener, that broke apart and formed the continents and oceans as we know them today; consisted of two parts- a northern laurasia and a southern gondwana tectonic plates. Large pieces of rock that form portions of the earth"s mantle and crust which are in motion. The formation of carbohydrates in living plants from water and carbon dioxide, through the action of sunlight on chlorophyll in those plants, including algae. Loss of diversity through a failure to produce new species.
