Scientists have found new evidence that melting Arctic permafrost could unleash large sums of mercury, a dangerous toxin.

Climate and other environmental changes sometimes drive people to migrate, especially if the land no longer supports a population’s way of life.

On May 11, a gorgeous aurora surprised stargazers across the southern United States. That same weekend, a tractor guided by GPS missed its mark.

For decades, scientists have known that some galaxies reside in dense environments with lots of other galaxies nearby.

The Colorado River and its tributaries provide water for hydropower, irrigation and drinking water in seven U.S. states and Mexico.

Unprecedented wildfires in Canada last year were three times more likely due to climate change and contributed to high levels of CO2 emissions from burning globally, according to the first annual review of its kind.

Fascinating detailed surveys by the UK Centre for Ecology & Hydrology (UKCEH) have captured how Britain’s broadleaf woodlands have changed dramatically over the past 50 years, due to disease, lack of management, climate change and an increase in deer numbers.

University of Queensland library – full of hailstones instead of books – is helping researchers better understand and predict damaging storms.

The Svalbard archipelago’s ice caps suffered extreme episodes of melting in summer 2024, brought on by exceptionally high air temperatures.

A team of scientists led by CU Boulder has identified 30 new areas critical for conserving biodiversity in the Southern Ocean surrounding Antarctica.