Climate

About 40% of the faint aerosol haze in the lower stratosphere is made of organic particles that begin as gases given off by plants at ground level, according to a study published Sept. 25 in Nature…

Warming is projected to divert atmospheric rivers, bands of airborne water vapor, away from lower latitudes and toward densely populated parts of Asia, according to a multi-model study published…

In 1903 the officer of the watch on a merchant ship read the barometer, wrote the number in the log, and thought no more about it. More than a century later that number, and hundreds of thousands…

Run a climate model long enough and you can do things to a planet that nobody can do to this one. A team in British Columbia began by stripping every forest off a simulated Earth, leaving nothing on…

Surface warming has sped up in particular regions since 1970, and the speed-ups did not begin everywhere at once: their onset dates run from the 1980s to the 2010s. That is the finding of a study…

Ask when the hot season begins where you live and most people can name a month. Across much of the world that month has been sliding, and now it has a number on it. A team led by Wenfang Xu and Juxiu…

An open-access study published Sept. 22 in Geophysical Research Letters reports that greenhouse gases released since the 2015 UN Paris Agreement have already made Europe's summer heat extremes more…

The Planetary Boundaries Science Lab at the Potsdam Institute for Climate Impact Research published its Planetary Health Check 2026 on Sept. 21, reporting that seven of the nine planetary boundaries…

Europeans born in 2025 are projected to spend 3.2 more years of their lives under extreme fire weather than those born in 1950, an increase of 84%, if the world stays on its current climate policies.…

A team led by researchers at Université Paris-Saclay has dated the iron-rich crusts that cap a plateau in northern Malawi, finding a continuous span of mineral ages running from 397 million years…

Researchers at Simon Fraser University have reconstructed what a 1941 heatwave did to western North America by reading 357 issues of 25 news publications printed before, during and after it, and…

Across several large ensembles of climate models, a warm North Atlantic leaves the tropical Pacific slightly warmer rather than cooler, according to a study published Sept. 18, 2026 in npj Climate…