Waxing and waning prairie: new study unravels causes of ancient climate changes
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Updates every hour. Last Updated: 28-Oct-2025 20:11 ET (29-Oct-2025 00:11 GMT/UTC)
A long period of drought in North America has been recognized by scientists for decades. A new study links the severe climate to a change in Earth's orbit.
Tyrannosaurus rex evolved in North America, but its direct ancestor came from Asia, crossing a land bridge connecting the continents more than 70 million years ago, according to a new study led by UCL (University College London) researchers.
Up to 250,000 deaths from poor air quality could be prevented annually in central and western Europe by 2050 if greenhouse gas emissions are drastically reduced, say researchers.