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Geog 003 2_26 - o salt concentration • Minamata Bay o...

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Twentieth Century we suck. Population Trends o See chart on PP Cropland increase increased CO2 emissions o 1/5 because of population growth Growth of consumption 20 th century follies o Fritz Haber Nitrogen Fertilizer Poisonous gas for Nazis o Thomas Midgley, Jr. Freon Refrigerant, air conditioning Added lead to gasoline to stop engine knocking Some say he had the most impact of any organism in history The Aral Sea o Irrigated two rivers that fed into 4 th largest lake o Lake dries up, and shrinking Colder winters, shorter growing season, saline crusts, disappearing fisheries Aswan High Dam o Dam the Nile to grow cotton o Lake Nasser o Upper Nile was dry
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Unformatted text preview: o salt concentration • Minamata Bay o Waste full of mercury dumpedin Japan o Worked way up food chain in bioaccumulation o Fish dying off o Cats went crazy- 1940 o Children get brain damage- 1956 o Doctor diagnosed, but factory pressured him to keep quiet o Fisherman attacked factory in 1959 o 10 years later mercury stopped, In mean time, hundreds died from mercury poisoning o Lawsuit in 1977, factory lost o Bay free of mercury in 1997, from dredging • Chainsaws o Cut trees 100- 1000 times faster • • Automobiles o Railroad hugely impact forest • Nuclear Power o Energy efficient o But not safe •...
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