Sixth-graders at the Leão Machado school in Sao Paulo. School gardens have become a popular way to help kids learn to eat healthier in Brazil.
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's plan to clamp down on climate pollution from coal-fired power plants like this one in Wyoming hit a potentially big speed bump at the Supreme Court this week.
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.
The Ricord's iguana, which lives only on the island of Hispaniola, was thought to be extinct in Haiti until a small population was discovered in the southeastern corner of the country eight years ago. Now the three foot-long lizard is the subject of a rar
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.
Climate activists demonstrating in Paris
Activists look to "fight locally, but connect globally" to hold governments accountable to their climate change promises.
Graph of renewable energy investment
The future of green energy is no longer seen as tied to fluctuations in the fossil fuel market.
Dead sperm whales are seen on a beach off the coast of the Netherlands, January 13, 2016.
The exact cause of more than a dozen strandings of sperm whales in recent days in the North Sea region is eluding scientists.
Norwegian company Statoil plans to build the first floating wind farm off the Scottish coast.
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?
Hybrid vehicles like the Chevrolet Volt were front and center at Boston's auto show.
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?
Flint's water tower
Lead mining, smelting and other exposures kill an estimated 143,000 people per year.
Greenland's Sermilik fjord is choked with huge icebergs from one of the island's biggest glaciers. But climate researchers working in the fjord and on the Helheim glacier are looking for tiny clues in hopes of getting a better handle on how cliamte change
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.

Pages