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Scientists have discovered a soil microbe with a gene that kills the corn rootworm, an insect that farmers spend $1 billion each year trying to control.

Brazil's National Institute for Space Research found that more than 3,000 square miles of forest cover were lost between August 2015 and July 2016 — a substantial increase over the year before.

It's billed as the "largest movable land-based structure ever built," and it is an important step toward ultimately dismantling the reactor. The 1986 blast was the world's worst nuclear disaster.

On Tuesday, activists targeted five pipelines carrying crude oil into the U.S. from Canada, as construction resumed on a North Dakota pipeline.

There's new and detailed data on the impact of genetically modified crops on pesticide use. Those crops replaced insecticides, and, at first, some herbicides. But herbicide use has rebounded.

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.

A scientist estimating the weight of candy wrappers, bags, bottles, syringes and other plastic trash in the world's water sees a synthetic tsunami. Should China and India create more landfills?

Alberta's leader is in Washington to lobby Congress and the Obama administration to push ahead with the controversial pipeline.

A video from NASA shows how air pollution moves around the world. So what happens when emissions from Asia blow across the Pacific Ocean to North America?

Why does that sleek polyester T-shirt reek after 10 minutes, while the old-school cotton stays relatively sweet? Polyester attracts very different microbes, which may account for that special stink.