Even if you failed SCUBA certification, you can visit the world's coral reefs -- minus all the water and animals that might slime or sting or bite you.
These four artists bedazzle an especially ugly ocean problem: thousands and thousands of square miles of discarded floating plastic.
Older people emit less on average, and other good news from our ongoing shift to a shuffleboard economy.
The Pacific Remote Islands National Marine Monument is so big it makes the Lone Star state look like a stroll in the park.
What does a "blue city" look like, anyway? For starters, take a look at Rotterdam and Wellington.
If jellyfish blooms are the future of our oceans, maybe we should start working up an appetite for them.
This summer brought a number of new heat records -- most worryingly, the hottest oceans on record.
Here's a tree even non-hippies would love to hug -- and he kicks ass, too.
This indie thriller highlights some of the most detestable clichés of the save-the-trees mentality. Our roundtable of writers weigh in.