Solar geoengineering to cool the planet: Is it worth the risks?

When I first wrote about geoengineering in 2012 , it was considered far-fetched at best, and crazy by most. But 12 years later, while there is still controversy and considerable resistance to deploying it, respectable scientists ...

Talks on global plastic treaty begin in Canada

Negotiators from 175 nations began talks Tuesday on a proposed global treaty to reduce plastic pollution, which is found everywhere from mountain tops to ocean depths, and in human blood and breast milk.

Negotiations on global plastic treaty to resume in Canada

Negotiators from 175 countries are meeting from Tuesday in Canada to nail down a binding global treaty to end plastic pollution with many sticking points to be resolved five months after the last round of talks in Kenya.

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