Plastic pollution could be cut by 80% by 2040, says UN report

Plastic pollution could reduce by 80% by 2040 if countries and companies make deep policy and market shifts using existing technologies, according to a new report by UN Environment Program (UNEP). The report is released ahead ...

Climate Questions: How does carbon dioxide trap heat?

That carbon dioxide and other greenhouse gases trap heat is something scientists have known about for more than a 150 years. The underlying concept behind climate change is simple enough that school children can replicate ...

China's smog problem explained

A thick haze has this week smothered Beijing and surrounding areas, with tens of millions of people in northern China under severe pollution warnings.

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