EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Burn fossil fuels (like gas and coal)
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Build cement buildings
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Ride bikes and use solar energy
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Compete in the Olympics
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Detailed explanation-1: -Carbon dioxide from the burning of fossil fuels is the largest single source of greenhouse gas emissions from human activities.
Detailed explanation-2: -Human Activity Is the Cause of Increased Greenhouse Gas Concentrations. Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This increase happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Detailed explanation-3: -When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming. Already the average global temperature has increased by 1C.
Detailed explanation-4: -Fossil fuel combustion (burning) for energy accounted for 73% of total U.S. GHG emissions and for 92% of total U.S. anthropogenic CO2 emissions.