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Corals in containers with different carbon dioxide levels.

Corals in containers with different carbon dioxide levels.
Corals in containers with different carbon dioxide levels.
Corals in containers with different carbon dioxide levels.
Corals in containers with different carbon dioxide levels.
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Barkley, Hannah
Corals in containers with different carbon dioxide levels.
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04/11/2013
IMG_1139.jpg
Caption from Oceanus magazine, Vol. 51, No. 2, pg. 31:
The corals are put in containers with different carbon dioxide levels. Green containers have current levels. Yellow ones have levels equal to what is projected in 2100. Red containers have even higher levels.
Image Of the Day caption:
Researchers in Anne Cohen's lab are investigating how changes in the ocean, caused by climate change, may threaten coral reefs. They have explored reefs in Palau, the Phoenix Islands, Dongsha Atoll in the South China Sea, and the Caribbean. Warming ocean temperatures cause coral bleaching, and rising carbon dioxide from fossil-fuel burning is lowering pH levels of seawater. In the experiment above, MIT-WHOI Joint Program graduate student Hannah Barkley put samples of living corals in containers with seawater infused with different levels of carbon dioxide to see how each level affects coral growth. Green containers have current levels. Yellow have projected levels in 2100. Red have even higher levels.
Photo by Hannah Barkley
© Woods Hole Oceanographic Institution
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