Signs of ancient life turn up in an unexpected place

Dr. Rowan Martindale, a paleoecologist and geobiologist at the University of Texas at Austin, was walking through the Dadès Valley in the Central High Atlas Mountains of Morocco when she saw something that literally stopped ...

New tool lets anyone audit a country's methane claims

For years, countries have told the United Nations how much methane they emit using a kind of bottom-up bookkeeping: Count the cows and oil barrels, estimate the volume of trash, and multiply by standard emission factors.

Melting glaciers may mix up waters more than we thought

As marine-terminating glaciers melt, the resulting freshwater is released at the seafloor, which mixes with salty seawater and influences circulation patterns. As the oceans warm, it's growing increasingly important to study ...

AI uncovers risks in chemical safety tests for aquatic life

The bioconcentration factor shows the concentration of chemical substances in fish as compared to the surrounding water. It is the standard measure for determining the bioaccumulation of chemicals in the environment.

Cold winter and AI boom pushed US emissions increase in 2025

Greenhouse gas emissions in the United States rose last year, snapping a two-year streak of declines as cold winter temperatures drove demand for heating fuel and the AI boom led to a surge in power generation, a think tank ...

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