The environment is polluted by microplastics worldwide. 

Early ice retreat amid warm Arctic air temperatures set the stage for the slow refreeze in 2020.

For a satellite with ice in its name, and measuring ice as its mission, NASA’s ICESat-2 is also getting a lot of attention from scientists who have warmer subjects in mind.

November 30 saw a historic conclusion to the 2020 hurricane season

The Pacific Ocean’s currents support a diverse ecosystem. Warmer currents during the last ice age may also have supported early human settlements.

A long-term trend of ecological improvement is appearing in the mountains west of Boulder.

A new national study of public water systems found that arsenic levels were not uniform across the U.S., even after implementation of the latest national regulatory standard. 

On the island of Spitsbergen, glaciers grind up sandstone, leaving an abundance of sediment that stains the meltwater.

Arctic Report Card: 15 years of observations document impact of changing polar climate

An international team of scientists has used artificial intelligence and commercial satellites to identify an unexpectedly large number of trees spread across arid and semi-arid areas.