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As sea levels rise and megastorms become more frequent and intense, answering that question might be the key to preserving coastal life as we know it

'Chasing Coral,' a new film premiering at Sundance, chronicles the desperate adventure of documenting the most imperiled ecosystems on earth

Climate change and ocean acidification have killed off one of the most spectacular features on the planet.

We polled the sharp-eyed nomads we trust most and came up with a bucket list of the best trips for getting the best shots around the world.

All it takes is one trip to change your life - and we've got 40 of 'em. Dreaming of close encounters with cheetahs or penguins? Want to climb a mountain in Peru? Experience an epic trek in China? One trip, one world - that's all it takes.

So it's a vast, faraway adventure mecca,no worries, mate! Here come ten abso-bloody-lutely awesome Australian odysseys—from Sydney to the bush—plus locals' picks and all the beta you need to get there.

Eileen and Tom Lonergan went out for a day of scuba diving, and never came back. The story behind the movie Open Water.

A five-month round-the-world journey beats geography class any day

On the other side of the world are other worldly sights-Tasmanian Devils, spirit houses, and the greatest reef of them all.

If you're ready to get away from it all and willing to forgo room service, marooning yourself on an uninhabited island can have its rewards. The trick is to ensure you get de-marooned before developing an emotional attachment to a volleyball. Here, some Castaway-style options. Buccaneer Archipelago, Australia…