Hundreds of public schools in Brazil have gardens where kids grow their own vegetables. And the schools say it's changing the way kids think about the food they eat.
The Obama administration says its plan to require big cuts in climate pollution from power plants is on firm legal ground. But an unexpected procedural ruling by the Supreme Court suggests a key swing justice could cast a vote to scuttle it.
In a country that's seen more than its share of human hardship over the years, a rare iguana is the focus of a rare conservation effort, run by an unlikely leader.
Activists look to "fight locally, but connect globally" to hold governments accountable to their climate change promises.
The future of green energy is no longer seen as tied to fluctuations in the fossil fuel market.
The exact cause of more than a dozen strandings of sperm whales in recent days in the North Sea region is eluding scientists.
Oil companies have been the richest companies in the world for more than a century. Can they transition to dominate the next century's fuel source too?
Consumers should expect to see more and more electric vehicles soon. But with falling gas prices and plunging stock prices, who is going to buy them?
Lead mining, smelting and other exposures kill an estimated 143,000 people per year.
Scientists working in Greenland are looking for tiny clues to help fill in the big picture about the fate of the island's giant ice pack. They're using cutting edge technology to track minute changes that could help predict what a warmer future might hold for Greenland and the rest of the world.