One year ahead of the 2016 Summer Games, Rio de Janeiro's Guanabara Bay remains a polluted mess and a serious health hazard for Olympic athletes who are due to compete there. But one biologist in Rio, who says this pollution is a "disruption of the force," isn't giving up on efforts to clean up the bay.
A new report in the British medical journal The Lancet says climate change poses a potentially catastrophic risk to human health. But it also says fighting climate change can bring big health benefits.
“Cultural revolution” and “radical change” are terms you might not expect to come out of the Vatican. But that’s language Pope Francis is using to talk about what he says is need to save planet earth and all of humanity along with it.
President Obama has given Shell the green light to drill for oil in the Arctic Ocean, but activists and politicians in Seattle are throwing up as many stop signs as they can as the drilling rig preps there for its journey north. It's the latest flashpoint in the growing international anti-fossil fuel movement.
Honey bees and other pollinators are in big trouble. President Barack Obama wants to help save them with a new protected bee habitat corridor along I-35 spanning the US from Laredo, Texas to Duluth Minnesota. Catherine Winter, who lives in Duluth and keeps bees herself, tracked down some other bee enthusiasts to talk about the president's plan and their own efforts to protect the pollinators that help feed us all.
A new plan announced by the US government would restore seven million acres of lost habitat for the monarch butterfly and other pollinating insects like honeybees, and scientists says the plan comes not a moment too soon for the troubled insects.
Tesla is famous for its electric cars, and it's now moving into the world of batteries. The company introduced new systems designed to store power from unreliable wind and solar sources, hoping to make a fortune and change the energy market forever.
With the Ebola outbreak not yet behind us, global health workers are already scrambling to prevent what could be the next big outbreak of an emerging disease caused by a virus that jumped from animals into humans. In Tanzania, an organization is trying a new approach to tracking these new viruses and preventing another pandemic.
Too much renewable power? A German engineer comes up with a way to store excess renewable energy, take pressure off the grid and ease the way for the adoption of more wind and solar power in a country that's already way ahead of most of the rest of us.
Unhappy with the economics of his rooftop solar panels, a German tinkerer invents his own electricity storage system that saves users hundres of dollars a year, makes it easier to integrate renewables into the grid, and wins an award for renewable product of the year.
Not long ago, Egypt all but threatened war if Ethiopia built a huge dam it was planning on part of the Nile River. Now the two countries have signed breakthrough agreement to allow the dam to go ahead. It's a big deal in a region with a history of tension over scarce water resources
What do you do when all other efforts to persuade locals to protect endangered rhinos have failed? Pay them to harvest the rhinos' dung and use it to make paper. That's what an Indian startup company is trying, with early success.
Brazilians are notoriously lavish bathers, taking as many as three showers a day. But as the country faces a major drought, they're trying to find way to keep up the shower numbers while still saving water.
The unprecedented water crisis in South America's largest city is leading citizens to change everything, from how they use water to how they engage with politics. But while the government is taking action, residents say it's not nearly enough.
São Paulo is facing an unprecedented water crisis that many saw coming, but no one did much to prevent. And with reservoirs hovering near 10% of capacity, many residents are turning to unhealthy stopgaps and worrying about unrest.