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Climate Change

In: Science

Submitted By vela013
Words 439
Pages 2
Nery Aguilar-Cisneros
Mr. Soter
Physical Science
March 14, 2012
Climate Change There are many compounds to the greenhouse effect, in earth’s atmosphere, allows sunlight to enter, reflects back to make heat. “ Earth’s surface should be about the same as the amount of energy radiated back into space leaving the temperature, of the earth’s surface roughly constant” Humans choices affect the earth one way or another, hurting our protective shield. Natural greenhouse gasses- water vapor, carbon dioxide, methane, and nitrous oxide human made (gases used for aresosios).
History:
Levels of important gases have increased about 25% since large scale industrialization began around 150 years ago. Within the past twenty years, about 75% of human-made carbon dioxide emissions were from fossil fuels. Slowly increased and starting in around the 1900’s rise up more quickly. Multiple ice cores from Antarctica have recorded climate data from the past 800,000 years. “The longest detailed records of atmospheric gases previously reported, from the uppermost sections of a 3.2 kilometer long ice core drilled in eastern Antarctica goes back 650,00 years”- Thomas Stucker, a physist.
Evidence for human activity affecting climate change:
China and the U.S. signed a bill to cut usage less. Humans make the greenhouse affect uncertain when how the high gasses go. Here are some human use in the United States (energy consummation), 23% of coal, 39% of Petroleum, 24% of natural gases, and 15% of non fossil fuels. In result: Here are some carbon dioxide emissions, 42% Petroleum, 37% Coal, 21% Natural Gases. “In the U.S. our greenhouse gas emissions came mostly from energy use. These are driven largely by economic growth, fuel used for electricity generation and weather patterns affecting heating and cooling needs”.
Direct affects of global warming on the environment: Certain gases absorb more

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