Tracking pollution from outer space

The thickest layers of global smog—caused by traffic, industry, and natural minerals, among other factors—are found over the world's megacities. But getting an accurate measurement of pollution is no easy task. On-the-ground ...

Developing cities face perfect storm of environmental risks

A major report, "Future Proofing Cities," published today by Atkins in a unique partnership with the Department for International Development (DFID) and UCL, warns that cities in the developing world must act now against ...

Can the world's megacities survive the digital age?

Today, megacities have become synonymous with economic growth. In both developing and developed countries, cities with populations of 10 million or more account for one-third to one-half of their gross domestic product.

Megacities move to track emissions

(Phys.org)—In an article published on Dec. 5 in Nature, Jeff Tollefson writes that according to United Nations data, megacities may be responsible for as much as 70 percent of greenhouse gas emissions around the world. ...

Megacity traffic soot contributes to global warming

Soot from road traffic in emerging countries can reach high altitudes, where it can be transported over long distances and thus contributes to global warming. This is the conclusion of a study performed by an international ...

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