ESS205H1 Lecture Notes - Lecture 8: Sewage Sludge, Ocean Acidification, Marine Pollution
Document Summary
Impact on coastal zones: wetlands, estuaries, coral reefs under severe pressure from coastal development and increasing population, pollution, there are 6 main type of marine pollution, petroleum, sewage sludge, fertilizer runoff. Hypoxic zones: ddt and pcbs, mercury, non-point-source pollution and trash, coastal waters are more polluted than open ocean because they are closer to land and shallower and less well circulated than open ocean. Impact on coral reefs: many at high risk, putting more co2 causes ocean acidification and caco3 structures dissolve in acidic conditions, global warming also causes coral bleaching. Air and air pollution: the atmosphere is a gaseous envelope surrounding earth, effects climate, life and air pollution, protects earth from uv radiation, allows visible light, warms the surface of our planet to habitable temperatures. Atmosphere structure: troposphere; air in the troposphere constantly flows in response to convection, the heat initiating movement comes primarily from ir radiation rising from surface.
