In two of the most heavily drilled states in the U.S., there is no sign natural gas development has caused harmful air pollution.

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The Department of Energy and Climate Change said the development of CCS technology, if developed at scale, could allow the safe removal and storage of harmful carbon emissions from coal and gas plants.

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And it's really going to become harmful, to be frank, if gas prices, you know, continue to stay at the level that they are, or even rise higher.

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Burning diesel versus gas results in higher levels of nitrogen compounds and soot, both of which can be very harmful to human health.

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