较富裕的国家必须作出更大的努力来减少碳排放量。

Richer countries must do more to cut back carbon emissions.

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下面，我们来看看怎样减少碳排放量。

Well, here's how you can work to reduce it.

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而减少碳排放量则可以使这个数字减少到4至6.5度。

Cutting emissions could hold that increase to just 4 to 6.5 degrees Fahrenheit.

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然而，其终极目标在于减少50%的碳排放量。

The final goal however is to reduce the carbon emission by 50%.

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减少温室气体排放量唯一有效的方式是征收碳排放税。

The only efficient way to cut greenhouse-gas emissions is to impose a carbon tax.

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减少温室气体排放量唯一有效的方式是征收碳排放税。

The only efficient way to cut greenhouse-gas emissions is to impose a carbon tax.

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减少温室气体排放量唯一有效的方式是征收碳排放税。

The only efficient way to cut greenhouse-gas emissions is to impose a carbon tax.

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