11. global warming
noun
-the gradual increase in the overall
temperature of the earth's atmosphere
due to the greenhouse effect caused by
increased levels of carbon dioxide,
chlorofluorocarbons, and other
pollutants.
12.
13. Global Warming Cause: Carbon
dioxide emissions from fossil fuel
burning power plants.
14. Global Warming Cause: Carbon
dioxide emissions from fossil fuel
burning power plants.
15.
16.
17. 40% of U.S. CO2 emissions
come from electricity
production
22. Modern car culture is responsible for about 33% of
CO2 emissions in the U.S.
23.
24.
25.
26. Increase in usage of chemical fertilizers on croplands also contributes to
global warming.
27.
28. The high rate of application of nitrogen-rich fertilizers has effects on the heat
storage of cropland (nitrogen oxides have 300 times more heat-trapping capacity
than carbon dioxide).
32. In regions surrounding the Arctic such as Alaska,
western Canada, and eastern Russia, winter
temperatures have already climbed by 4–7
degrees Fahrenheit over the last half-century.