mankind manmade global warming pollution soil degradation (erosion, runoff, etc.) nuclear warfare...
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Mankind
•Manmade global warming
•Pollution•Soil
degradation (erosion,
runoff, etc.)•Nuclear warfare
Nature
•Mega tsunami and flooding
•Large earthquake•Hurricanes
•Drought•Super volcano
and climate change
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http://library.thinkquest.org/CR0215471/global_warming.htm
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•Unzen Volcano
•Krakatoa explosion
•Indian Ocean
Notable Incidents
http://www.tsunami.noaa.gov/
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0•Overgrazing.•Overfarming without crop
rotating.
CausesCauses land to become unfertile.
Was responsible
for the American Dust Bowl.
http://www.globalchange.umich.edu/globalchange2/current/lectures/land_deg/land_deg.html
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•Shaanxi-
•Indian Ocean-
Could possibly trigger a volanco.
http://earthquake.usgs.gov/
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•Love canal•Radiation
Contamination
•Smog•Acid Rain
http://edtech.kennesaw.edu/web/pollute.html
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•Bhola cyclone•Indian cyclone
http://www.nhc.noaa.gov/
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•Sahel drought•Sometimes caused by
overgrazing
"Drought for kids." www.drought.unl.edu. University of Nebraska Lincoln. 26 Jan 2009
<http://drought.unl.edu/kids/>.
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0•Hiroshima and
Nagasaki•Stockpiles
•Tsar Bomba
http://www.howstuffworks.com/nuclear-bomb.htm
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•Krakatoa•Tambora
•Huaynaputina•The Year without a summer•Volcanic
winter•Lake Toba
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•"Global Warming." www.thinkquest.org. Thinkquest. 18 Jan 2009 <http://library.thinkquest.org/CR0215471/global_warming.htm>.
•"Tsunami." www.tsunami.noaa.gov. National Oceanic and Atmospheric Administration. 18 Jan 2009 <http://www.tsunami.noaa.gov/>.
•"Land Degredation." www.umich.edu. University of Michigan. 18 Jan 2009 <http://www.globalchange.umich.edu/globalchange2/current/lectures/land_deg/
land_deg.html>.•"USGS Home." www.earthquake.usgs.gov. United States Geological Survey. 18 Jan 2009
<http://earthquake.usgs.gov/>.Jerrie S., Cheek. "Pollution." www.edtech.kennesaw.edu. 8 August 2005. Educational
Technology Center. 26 Jan 2009 <http://edtech.kennesaw.edu/web/pollute.html>."Drought for kids." www.drought.unl.edu. University of Nebraska Lincoln. 26 Jan 2009
<http://drought.unl.edu/kids/>.