With storms intensifying and sea levels rising, the lessons of Katrina are lessons for all of us.
Chemical blasts kill scores of people and destroy a section of an important Chinese port. What safety precautions should be in place to prevent this from happening again — in China or elsewhere.
China is one place where leader don't have to grapple with politics to implement such rules.
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.
Big game and the death of a lion in Zimbabwe is sparking a very big controversy.
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.
In its effort to address a growing water crisis, Peru's capital, Lima, is looking to ancient canals in high mountain villages outside the city.
“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.