German court orders diesel bans in Cologne, Bonn

A German court Thursday ordered Cologne and Bonn to join a slew of cities in banning older diesels from its roads to combat air pollution, as the government struggled to reach a deal with carmakers on cleaning up the cars.

Quick soil test aims to determine nitrogen need

Healthy soil contributes to healthy crops. Farmers know this, so they do what they can to ensure their soil is in good shape. They send samples of their soil for lab testing to find out if it is low in any important nutrients. ...

Reining in soil's nitrogen chemistry

Take a trip down into the soil beneath a field of crops. You won't find just dirt, water, and creepy-crawlies. You'll also find reactions that remind you of high school chemistry lab.

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 ...

Bacteria may supercharge the future of wastewater treatment

Wastewater treatment plants have a PR problem: People don't like to think about what happens to the waste they flush down their toilets. But for many engineers and microbiologists, these plants are a hotbed of scientific ...

African lake provides new clues about ancient marine life

New research shows there may have been more nitrogen in the ocean between one and two billion years ago than previously thought, allowing marine organisms to proliferate at a time when multi-cellularity and eukaryotic life ...

Nitrogen in ancient rocks a sign of early life

Nitrogen is one of the essential nutrients of life on Earth, with some organisms, such as the kinds of microbes found within the roots of legume plants, capable of converting nitrogen gas into molecules that other species ...

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