Umair Irfan

Why climate scientists are so concerned about aerosols, not just greenhouse gasses. Last year was the hottest year on record , and this year's temperatures may reach even higher

Seven questions about the “biblical devastation” from Helene's fallout, answered. The scenes from North Carolina are shocking: roads and bridges washed away.

A reader asks whether the latest developments in clean energy technology can help save the planet. We break it down.

Hurricanes like Milton and Helene are making it harder than ever to insure your home.

What we know — and don't know — about how global warming influences tropical storms.

Claudia Sheinbaum, la nueva presidenta, ya está remodelando su industria energética.

Claudia Sheinbaum, the country’s new president, is already reshaping its energy industry.

Claudia Sheinbaum, Mexico's first female president, is pushing for a major shift toward renewable energy while maintaining some populist policies of her predecessor.

Greenhouse gas emissions are higher than ever as key leaders threaten to walk away from this year’s UN climate talks.

The world's worst air pollutions is getting worse, but there are concrete ways to fix it.