The Southern Ocean covers almost a third of the world’s ocean surface and connects the basins of every other major ocean, with unforgiving conditions that make research difficult.

Marine carbon dioxide removal (CDR) has advanced significantly, with growing research activity, technological development, private-sector involvement, and movement toward field testing, but major questions remain about whether these approaches can remove carbon dioxide at meaningful scales, how that removal can be reliably measured and verified, potential environmental effects, and how marine CDR should be governed, says a new digital report from the National Academies of Sciences, Engineering, and Medicine.

The Arctic is warming at an accelerating pace.

The effects of a meager mountain snowpack across the Upper Colorado Basin in winter 2025-2026 had made their way downstream to Lake Powell by summer. 

Tests in university classes show that simple, low-cost systems can remove airborne particles with little disruption from fan noise.

Documenting the seasonal fate of these tiny marine organisms is a step toward understanding how ecosystems in the world's fastest-warming region may change as ice recedes.

A new study found more than half of the city’s bike-share trips replace car trips, with each bike reducing annual CO2 emissions by up 120 kilograms (kg) per year.

In a discovery as broad and far-reaching as the Big Muddy itself, a new, Yale-led study says farmers along the Mississippi River Basin are storing more carbon dioxide (CO2) in the soil than they are emitting when they add limestone to their fields, an agricultural practice known as “liming.”

If someone leaves the faucet running in your bathroom and the house floods, it’s easy to assign responsibility for the damage.

Study finds increased precipitation outpaces water loss from warmer temperatures.