The most recent gift from the U.S. Library of Congress to the world is a collection of more than 2,500 stunning Japanese woodblock prints.
For years, crowds have flocked to world's fairs to see the latest inventions and have a good time. See the history of U.S. world's fairs in pictures!
A breakthrough battery has been developed that could change how we power our electric vehicles and help improve energy security around the world.
Wind energy has come a long way. Today it's more efficient and cheaper than ever. What do you think you know about wind energy that isn't true?
The rural town !Kheis in South Africa is cooler than ever before with a simple, energy-efficient technology to keep buildings cool.
It only took a few years — and good planning — to make big oil producer Texas the leader in U.S. wind energy.
Gracie the border collie brings a special skill set to Glacier National Park: keeping the wildlife living in the park safe from their visitors.
Companies are working to make their supply chains greener as part of their push for energy efficiency and other environmentally friendly business practices.
Texas may be known for its oil and gas, but one city there plans to get nearly all of its electricity from renewables, such as wind and solar.