Related topics: nitrogen

US gains in air quality are slowing down

After decades of progress in cleaning up air quality, U.S. improvements for two key air pollutants have slowed significantly in recent years, new research concludes. The unexpected finding indicates that it may be more difficult ...

New source of global nitrogen discovered

For centuries, the prevailing science has indicated that all of the nitrogen on Earth available to plants comes from the atmosphere. But a study from the University of California, Davis, indicates that more than a quarter ...

UK to ban sale of petrol and diesel cars by 2040

Britain said Wednesday it will outlaw the sale of new diesel and petrol cars and vans from 2040 in a bid to cut air pollution but environmental groups said the proposals did not go far enough.

Improving Chinese air pollution leads to business opportunities

China's trouble with smog and air pollution is well known, but air quality is beginning to improve as Chinese authorities start to tackle the problem. According to a story in Chemical & Engineering News (C&EN), the weekly ...

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