A simple technology that looks like a "wind turbine in a box" is helping harness winds produced by planes!
Did you know that arid deserts in several countries have turned into lush, fertile land? Let's find out how!
In cities across the globe, up to a fourth of office buildings are vacant. Now, some of them are being put to new use... let's find out more.
The Earthshot Prize, created by Prince William and The Royal Foundation, honors and celebrates people making a difference. We look at this year's winners.