GLY 1103 Lecture 9: Coastal Processes Part 3

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Coastal Processes Part 3 Fish Farming dilution of native species, monoculture, environmental damage, behavioral problems Coral Reefs dying because of ocean acidification Drilling and Refining we have many offshore oil rigs that are susceptible to damage from hurricanes, susceptibility of coastal refining mines Ex. Galveston Texas Eutrophication caused dead zones, over nutrification of water Unidirectional Changes differentiation, evolution, crustal processes Cyclic Changes Sea level, Carbon Cycle (carbon dioxide) 85 of CO2 comes from burning fossil fuels 15 is from deforestation Paleoclimate information from ice cores, rock records, tree rings, plankton (sediment cores), pollen records Snowball Earth was driven by albedo (reflectivity of Earth) We emerged from it because reduced vegetation and chemical erosion Climate Change and legends Mediterranean Sea crossed Bosporus Strait into Black Sea, sea level rose 10 cm a day (Noah) Milankovitch Hypothesis climate variation due to orbital change Eccentricity 100,000 years Axial Tilt 41,000 years Wobble 23,000 years