Nine out of 10 people breathing polluted air: WHO

More than 90 percent of the global population is breathing in high levels of pollutants, the World Health Organization said Wednesday, blaming poor air quality for some seven million deaths annually.

Figuring out how wild wheat protects itself from insects

Wheat is a staple crop that provides 20% of the world population's caloric and human protein intake. Although wheat is essential for human and livestock diets, these plants are continuously preyed upon by insect herbivores ...

Climate science: Bad news gets worse

As UN negotiators meet in Bonn to thrash out rules for implementing the climate-rescue Paris Agreement, the stakes have never been higher.

There's still a way to reach global goal on climate change

If nations do all that they've promised to fight climate change, the world can still meet one of two internationally agreed upon goals for limiting warming. But the planet is blowing past the other threshold that scientists ...

La Nina climate cycle may reemerge in 2021: UN

The weather phenomenon La Nina could resurface before the end of 2021, after petering out four months ago, the UN said Thursday, predicting above-average temperatures despite its generally cooling influence.

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