We’re letting loose tons — literally — of carbon dioxide into our skies each day. And a good amount of that CO2 is finding its way into the ocean. Scientists from all over the world are rolling up their sleeves to try to avoid a global disaster.

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Tags: akihiko murata, carbon dioxide, carbon footprint, chris sabine, CO2, International Ocean Carbon Coordination Project, Japan Agency for Marine-Earth Science and Technology, NOAA, ocean acidification

Chris Martens is alarmed by the global disappearance of corals. To learn more, he lives at the bottom of the ocean on Conch Reef off Key Largo, Florida for up to 2 weeks at a time.

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Tags: aquanaut, aquarius, Chris Martens, coral reefs, florida keys, ocean acidification, sponges