In 2012, Nigeria accounted for half of the world’s cases of polio. Now it hasn’t seen a new case in more than a year. What does this mean for the world?
Working with recycled materials, 15-year-old Sahil Doshi has developed the PolluCell, a battery that generates electricity by sucking CO2 from the air.
The ground will move October 3 to 4 as the Global March for Elephants and Rhinos thunders through your area. These animals are being hunted to extinction.
Scientists are exploring the deep waters around Hawaii, finding forests of coral, an interesting crater and new species. You can be part of it!
On September 21, the world seeks to minimize use of fossil fuels on Zero Emissions Day — not a problem for these homes built for the Solar Decathlon.
Scientist Piers Sellers says the Arctic is melting fast, and you can already feel it.
The iconic oil derricks of the West Texas horizon may soon be overshadowed, as solar panels and wind turbines drive a renewable energy rush.
Soon customers of six passport agencies will be able to rate the services they receive on the review site Yelp.
Google, Facebook and eBay join a new alliance to save elephants and other wildlife. Do you know the different ways elephant poaching causes damage?