We're using more and more carbon-based fuels, generating greenhouse gases (such as carbon dioxide) that trap heat from the sun in our atmosphere.

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One of these changes, which would promote global warming, is a rise in the level of so-called greenhouse gases (particularly carbon dioxide) which trap heat from the sun and thus warm the air.

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And the air quality around the plant ought to improve, too, Ford says, because the roof will trap dust, absorb carbon dioxide and release oxygen into the environment.

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