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Particles floating in the air over the northwestern Amazon are efficient at starting the ice in cirrus, the thin clouds that form high in the atmosphere. The larger particles do it better as the air…
Every week through the growing season, for 20 years, researchers have walked into the Lötschental, a valley in the Swiss Alps. There they cut a pencil-thin plug of wood out of the same trees. Each…
The hottest days of the Amazon dry season are warming more than twice as fast as the region's average temperature, a research team led by Jos Barlow of Lancaster University reported on Sept. 10,…
The Copernicus Climate Change Service said August 2026 was the joint warmest month ever recorded, tied with July 2023, at a global average surface air temperature of 16.96 °C. The service, run by the…
The stretch of the year that brings a region its worst heat has grown longer across about half of the world's land over the past 45 years, and in most places it has grown at one end rather than both,…
More than a third of the world's forests grew more productive and less able to recover from shocks at the same time between 2001 and 2021, according to a study published Sept. 10 in Communications…
Greenhouse gases released by warming itself could add 0.2 to 0.4 °C to global temperatures by 2100, according to a projection published Sept. 10 in Environmental Research Letters by Sam Abernethy and…
Switzerland puts a great deal of engineering between its households and its lakes. Wastewater runs through a treatment plant before it reaches a river, and the country knows roughly what comes out…
Seafloor animal life in a metal-rich basin of the northwest Pacific does not simply rise as the metal does, according to a photographic survey published Sept. 10 in Communications Earth &…
A coral is not a tree, but it keeps the same kind of books. The slow-growing stony corals of the northern Gulf of Mexico add a layer of limestone every year, one on top of the last, for centuries.…
NOAA's National Centers for Environmental Information reported on Sept. 9 that the contiguous United States averaged 74.4 degrees Fahrenheit from June through August 2026, the warmest summer in a…
Most of the U.S. estuaries in a national monitoring network have warmed, grown more algae and lost oxygen over the past two decades, a research team led by Kaitlin L. Reinl of Rensselaer Polytechnic…