Britain to intensify fight against climate change

Britain's outgoing prime minister on Wednesday announced plans to eliminate the country's net contribution to climate change by 2050 as Europe's effort to slow global warming picked up speed.

Clean air taxis cut pollution in New York City, study finds

New York City Clean Air Taxi rules are successful in cutting emissions and reducing air pollution, according to a new study by researchers at the Columbia University Mailman School of Public Health and Drexel University. ...

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