Definition of "gigatons" [gigatons]

• Plural form of gigaton. (noun)

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• "It will cost between $17.2 to $33 billion to protect the forests and cut emissions by 2.7 gigatons of carbon dioxide a year."
• "To take just one example, last month the boss of the U.S. Chamber of Commerce, Thomas Donohue, called for burning all the country’s newly discovered coal, gas, and oil -- believed to be 1,800 gigatons worth of carbon from our nation alone."
• "But the oil companies, private and state-owned, have current reserves on the books equivalent to 2,795 gigatons -- five times more than we can ever safely burn."