The observed rise in atmospheric CO 2 levels has been caused primarily by human

The observed rise in atmospheric co 2 levels has been

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The observed rise in atmospheric CO2levels has been caused primarily by human fossil-fuel burning, and very likely is causing warming of the climate that is likely to become much larger if we continue our current behavior.D.The observed rise in atmospheric CO2levels has been caused primarily by human fossil-fuel burning, and is having no effect on the climate.E.The observed rise in atmospheric CO2levels has been caused primarily by a sudden increase in explosive volcanism, and is having no effect on the climate.Points Earned:1/1Correct Answer:CYour Response:C 12.The United Nations, under the auspices of the Intergovernmental Panel on Climate
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Change, has attempted to assess the scientific understanding of how greenhouse-gas emissions will affect the climate, and thus people. The UN reports show that if we continue on our present path, burning fossil fuels at a faster and faster rate:
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  • Fall '08
  • ALLEY,RICHARDBANANDAKRISHNAN,SR
  • Greenhouse gas

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