While CO2 is the major greenhouse gas, methane is second most important; methane is more than 20 times as effective as CO2 at trapping heat in the atmosphere (“Methane,” 2008). Mining coal and oil allows methane to escape. Methane is naturally in the ground. When coal or oil is mined, it has to be dug up from earth and when this is process is completed, you release the methane letting it escape into the atmosphere. With the increasing amounts of CO2, methane and other greenhouse…
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