The U.S. Department of Energy\'s energy outlook report for 2015 estimates that e

Question

The U.S. Department of Energy's energy outlook report for 2015 estimates that electricity generation in the United States will increase by nearly 25% by 2040. Both the amount and percentage of electricity generated by burning coal, however, will drop, as more and more electricity is generated by burning natural gas and exploiting renewable energy sources. Which of the following is an expected consequence of this shift?

a. Carbon dioxide levels in the atmosphere will drop.

b. Carbon dioxide levels in the atmosphere will stay the same.

c. Carbon dioxide levels in the atmosphere will increase, but at a lower rate than if coal burning continued to be the major source of electricity.

d. Carbon dioxide levels in the atmosphere will increase at a higher rate than if coal burning continued to be the major source of electricity.

Explanation / Answer

The expected consequence would be Carbon dioxide levels in the atmosphere will increase, but at a lower rate than if coal burning continued to be the major source of electricity, as we may use renewable energy sources, but if still we are burning coal as major source of electricity then definately carbon dioxide level will increase but at lower rate.

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