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It’s raining plastic in the Rocky Mountains
A USGS study identified plastic in more than 90% of rainwater samples taken from across Colorado.
August 15, 2019
Microplastics found in Lake Tahoe
Research at one of the world's clearest, cleanest lakes suggests the problem of microplastics is widespread in freshwater systems and not just in oceans.
August 15, 2019
How do monarch butterflies know when it’s time to migrate?
Overwintering monarch butterflies rely on a temperature-sensitive internal timer to wake them up to make the trip back north, researchers report.
August 7, 2019
A big earthquake in the US Pacific Northwest?
Most people don’t associate the US Pacific Northwest with earthquakes, but maybe they should. It’s home to the 600-mile (1,000-km) Cascadia megathrust fault, stretching from northern California to Canada’s Vancouver Island.
August 5, 2019
How mosquitoes find us
For mosquitoes, finding the next blood meal is all about smelling and seeing. It's our breath that gives us away.
August 5, 2019
A new species of duck-billed dinosaur
Duck-billed dinosaurs - hadrosaurids - were common 80 million years ago. Now scientists have discovered a complete skull of a previously unknown species of hadrosaurid, which sported unusual skull and face features.
August 2, 2019
How fireflies glow and what signals they’re sending
Are the gentle blinks of fireflies flashing a favorite part of your summer evenings? An entomologist explains some lightning bug basics.
July 29, 2019
Why do birds sing?
Birds spend a lot of time and energy singing, but they don't do it the same way in every season of the year. And some can't sing at all. What's the purpose of birdsong?
July 25, 2019
June 2019 hottest on record for globe
Last month was the planet's hottest June in NOAA's climate record, which dates back to 1880. Also last month, Antarctic sea ice coverage shrank to new record low.
July 24, 2019
Joshua trees facing extinction
They outlived mammoths and saber-toothed tigers. But new research suggests that without dramatic action to reduce climate change, Joshua trees won’t survive much past this century.
July 23, 2019
