UN report warns of catastrophic risks to Earth systems

Melting glaciers, unbearable heat and space junk: a month before crunch climate talks in the United Arab Emirates, a UN report published Wednesday warns about irreversible impacts to the planet without drastic changes to ...

New dating of cave art reveals history of Puerto Rican people

In the karstic caves of Puerto Rico, cave art paints the rock walls. Previous research has assigned ages to this art based on the ages of nearby archaeological artifacts within the caves, but these ages are relative and may ...

The earthworm effect: Unraveling soil weathering dynamics

Earthworms, the hardworking invertebrates that grace the upper layers of soil, have long been considered helpful in our home gardens. Earthworms are prolific munchers, grinding up organic material and sediment grains that ...

Examining the function of salmon cooling stations

You've heard of the salmon run: upon reaching sexual maturity, wild Atlantic salmon, which are born in freshwater rivers but spend most of their adult life in the ocean, swim upstream all the way back to their birthplace ...

Inferring wildfire intensity from quartz luminescence

On 8 June 2020, the Mangum Fire ignited 16 miles north of the North Rim of Grand Canyon National Park. By the time it was mostly contained, about a month later, the fire had burned over 70,000 acres of land.

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