PHC 4320 Lecture Notes - Lecture 12: United Nations Environment Programme, Svante Arrhenius, Special Report On Emissions Scenarios

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Week 12: terms, climate, the sum of weather measured in a longtime phenomenon, weather, the state of the atmosphere at a particular time and place. N2o, cfcs, synthetic fluoride components (sf6: brief history, svante arrhenius (1896) of sweden, was the first to theorize the impact of co2 on earth"s climate (not taken seriously until 1950s, 1980. Infrared radiation (700 nm-3,500 nm: 1800 nm is significantly absorbed by ghgs, sources of earth"s energy, sun contributes energy to earth, about 30% of the sun"s energy is reflected directly back into space. The rest (70%) of the sun"s energy is absorbed into the earth"s system: effects of ghg on warmer earth, carbon cycle and global warming, carbon traps in our earth, fate of co2 and methane. Interfering carbon balance: certain human activities release carbon into the atmosphere as carbon dioxide (co ) and methane (ch ).

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