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.

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.

Scientists previously thought warming temperatures caused by climate change and increased nutrient levels due to pollution might offset each other’s impact on aquatic life.

In the summer of 2001, I kayaked solo for 66 days down the Nahanni, Liard, and Mackenzie rivers in Canada’s Northwest Territories.

In 2011, Philadelphia’s city-owned water utility drew national attention when it began Green City, Clean Waters, a 25-year program to manage an increasing volume of stormwater by using mostly “green infrastructure,” such as rain gardens and porous pavements, which allows rain to soak into the ground rather than becoming runoff that pollutes rivers and creeks.