Why are Alaska's Aleutian Islands so ethnically mixed? And other questions from a new map of U.S. populations.
As the world heats up, the Himalayas are becoming more volatile.
Matthew Zadrozny shared his concerns about the NYPL's renovation with the Humans of New York blog. The post quickly went viral.
The former mayor has invested $53 million to end over-fishing. But reviving the seas could take a multi-billion-dollar effort.
People are planting more trees, thinking carefully about coastal development, and anticipating the future of California's wineries.
There is no way to clean it up.