Northern China chokes under severe pollution

Tens of millions of people across northern China were under severe pollution warnings Tuesday, with authorities urging them to reduce outdoor activities as a grayish smog enveloped the region.

Massive California fire eases with rains

California firefighters were able to beat back a massive wildfire outside Los Angeles after a tropical storm brought rains and cooler temperatures, US authorities said on Saturday.

Climate change, new construction mean more ruinous fires

The winter grassland fire that blew up along Colorado's Front Range was rare, experts say, but similar events will be more common in the coming years as climate change warms the planet—sucking the moisture out of plants—suburbs ...

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