The United Nations reported this week that Kyoto Protocol signatories have reduced greenhouse-gas emissions to 5 percent below 1990 levels, four years ahead of the treaty schedule.
For a country to get a direct readout of its national emissions, it would have to put a greenhouse-gas meter on every tailpipe, landfill, and cow. Since that's impractical, government officials track the inputs rather than the outputs. In other words, they count up the number of gallons of fossil fuels consumed, cattle raised, and pounds of waste produced. From there, it's just a matter of doing the right calculations.
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For a country to get a direct readout of its national emissions, it would have to put a greenhouse-gas meter on every tailpipe, landfill, and cow. Since that's impractical, government officials track the inputs rather than the outputs. In other words, they count up the number of gallons of fossil fuels consumed, cattle raised, and pounds of waste produced. From there, it's just a matter of doing the right calculations.
More Details on Here
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