The bright orange plumes of water scientists first noticed billowing across a river in Alaska’s Brooks Range in 2018 were even more acidic and metallic than water leached from metal mines, despite their pristine surroundings.

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.

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.

Coral reefs provide shelter and protection for nearly one quarter of ocean species, including crabs, moray eels, octopus and fish.

As the 2026 El Niño intensifies across the Amazon, new research highlights the urgent need to better protect the region’s remaining forests from disturbances.

The same amount of rain falling on the same landscape at different times can send very different amounts of water into its rivers, according to a new study in Nature Water.

Human development may be changing more than where pollinators live — it may also be changing when they are active.

Scientists in search of coral reef barriers which had been detected but not investigated in the 1960s, and were thought to be dead, discovered an apparently thriving ecosystem of deep-water corals.

Once coyotes get a taste for city living, the call of the wild fades to a whisper. 

The work is part of a multiyear effort to develop a distributed sensor network for relaying data collected from this critical region.