Paris climate goals mean emissions need to drop below zero

If governments are serious about the global warming targets they adopted in Paris, scientists say they have two options: eliminating fossil fuels immediately or finding ways to undo their damage to the climate system in the ...

Guam students build underwater robots

A group of students in Guam is learning about the connection between marine robotics and environmental sustainability by creating their own underwater robots.

Delhiites urged to accept controversial car ban plan

Delhi's firebrand Chief Minister Arvind Kejriwal called on residents of India's capital Thursday to cooperate with his ambitious plans to clean up the toxic air of the world's most polluted city.

More Chinese cities issue red alerts for heavy smog

More Chinese cities are issuing their first red alerts for pollution in response to forecasts of heavy smog, after the capital, Beijing, issued two this month following criticism for not releasing them earlier.

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