It's no secret that Florida's iconic coral reefs are in trouble.

Thus, Biscayne works best as a day trip. Many visitors stay and eat in Florida City or Homestead, about a 20-minute drive ...

It is hard to imagine an island less like Greenland than Diego Garcia, a lush coral horseshoe halfway between Africa and Indonesia. Both lands host American military bases. But, whereas the United ...

Green by choice! Follow these 26 easy, effective tips to reduce your footprint and become a more conscious, responsible ...

Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.