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NPR science blogger and astrophysicist Adam Frank argues infrastructure must change in order to develop new, environmentally friendly forms of transportation.

Trees not only help slow the effects of climate change but also help clean and cool the air around them.

Scientists were shocked to see what happened when this ancient bacterium encountered modern antibiotics.

Alarmed Russians are sharing photos on social media of the red Daldykan River, located above the Arctic Circle. The Russian government thinks a pipeline leak from a local factory could be to blame.

Cheetahs don't often hunt at their top speed, scientists are finding. Come mealtime, what matters most is the animals' ability to accelerate and to take tight corners.

The Birch Glacier above the village of Blatten collapsed and caused a landslide that has buried most of the village. Authorities had evacuated residents earlier this month, but one person is missing.

A new study on mice shows that luck in early life can determine success as an adult, especially when competition is high.

An Environmental Protection Agency study concludes that water and air quality and environmental safeguards are better today than they were 30 years ago. Answering skeptics, outgoing EPA chief Christine Todd Whitman says the Bush administration's decision to edit sections on the effects of global warming was motivated not by censorship but by differing opinions from government scientists. NPR's Melissa Block speaks with Whitman.

Millions of monarch butterflies migrate to the mountains of Mexico each winter. Authorities are now investigating the apparent murders of an activist and tour guide at the Michoacán reserve.

Sonny Perdue, who's been named to head the U.S. Department of Agriculture, has held many political offices in his home state of Georgia. Farmers liked him. Environmentalists, not so much.