Stratospheric Ozone - Earth 2 Thursday Announcements...

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Earth 2 Thursday, April 20, 1999 Announcements: Lecture notes: Stratospheric Ozone This is what protects us from UV. However, normal ozone selectively absorbs incoming UV. CO2-Global Warming The only thing that we are virtually certain of is that the stratosphere will cool --this is because Cl2 formed ice crystals on polar stratospheric clouds, which cools the stratosphere down to about -80 degrees Celsius. Tropospheric Ozone At the surface, ozone is a toxic irritant Photochemical Smog is what comes from CO & NO put up into the atmosphere in the morning then reacting with the sunlight in the afternoon. Deforestation Deforestation usually occurs in areas between 5 degrees North Latitude
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and 5 degrees South Latitude. There are high rates of precipitation (up to 2000 mL) per season. There is lots of diversity in these areas. Many interdependencies between life occur here. Nutrient Paradox Huge productivity.
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