GEOG 106 Lecture Notes - Lecture 8: Thermal Expansion, Water Mass, Counterargument
Document Summary
There are signs of warming underway because the global atmospheric temperature has increased at least 0. 5 degrees celsius in the last 100 years. Carbon dioxide is removed from the atmosphere by the two main absorbing agents, vegetation and the oceans. With the rise of global air pollution, the oceans appear to have increased their carbon dioxide intake. Atmospheric co2 is expected to double by 2050. There is a counterargument that casts doubt on the global warming forecasts. Aerosols particles of solids and liquids suspended in the atmosphere that backscatter. It is based on the blocking effect on solar radiation caused by aerosols. incoming solar radiation. Aerosols are produced from both natural sources such as volcanoes and pollution sources such as forest fires and urban emissions. They occur in both primary and secondary forms, meaning that some enter as particles whereas others develop into particles from gaseous pollutants.
