GE CLST 70A Lecture Notes - Lecture 19: Glossary Of Leaf Morphology, Snowball Earth, Permafrost
23 Jan 2017
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Active plate tectonics recycles gases and maintains a moderate atmosphere. Once co2 is released, it remains in the atmosphere, creating a think atmosphere. Carbon cycle works on fast and longer timescales. Weather = rapidly changing and local phenomena. Climate = patterns of weather over from decades to longer than centuries. To understand evolution over different time scales, we need to consider feedbacks, cycling, Significant climate changes have occurred over earth"s history. On what scale is climate constant? tectonics, and chemical evolution of the lithosphere, hydrosphere, and biosphere. The amount of solar radiation that reaches the earth"s surface. Measured by the amount of solar energy per sec/meter^2. Solar constant = 1367 w/m^2 at the top of the atmosphere: location on the earth. Equator gets more sun than the poles. Uneven heating is one of the causes of weather: changes in reflectivity (albedo) Not all sunlight that reaches the earth is actually absorbed by it.
