While AI doomers predict the existential risk that artificial intelligence poses to humanity, air pollution—specifically, ultrafine particulate matter, PM 2.5—has been an efficient killer for decades.

Cleaner air is making marine clouds dimmer and oceans warmer, revealing a hidden climate trade-off as pollution declines.

In Iran this winter, hospital emergency rooms have been full, schools regularly closed, and many people unable to work or ...

Air pollution caused tens of thousands of deaths in the world's five most populous cities last year despite coronavirus ...

We have polluted everything — our rivers, seas, air, mountains. The only thing left was the sky. But it too is now dirty,” ...

Earth is reflecting less sunlight, and absorbing more heat, than it did several decades ago. Global warming is advancing ...

We have polluted everything — our rivers, seas, air, mountains. The only thing left was the sky. But it too is now dirty,” says filmmaker O.P. Srivastava. “Once, you could look up and feel refreshed.