Private space ventures and nations such as China are aiming to potentially leave their own prints in the moon's powdery soil. That's prompted some nervousness about keeping Neil Armstrong's iconic boot print and other artifacts left by U.S. Apollo astronauts safe and secure.
Farmers are emptying some of the world's most important aquifers faster than rainfall can replenish them, which means less water for everyone. This map from the journal Nature shows where irrigation is doing the most damage.
When you give to WAMU, your tax-deductible membership gift helps make possible award-winning programs such as Morning Edition, All Things Considered, The Diane Rehm Show, The Kojo Nnamdi Show, and other favorites.