By PBS NewsHour
President Barack Obama pledged Thursday to expand the largest ocean sanctuary to 490,000 square miles, six times its current size. The PBS NewsHour has been following how ocean acidification has impacted marine life and the Americans who depend on them.
By Rebecca Jacobson, Inside Energy
Shellfish made poisonous by toxic algae may bloom into bigger problem…
The world's oceans are absorbing carbon dioxide at an unprecedented rate and the resulting acidification is transforming marine ecosystems. Hari Sreenivasan reports on how ocean acidification is already affecting oysters and other shellfish in the U.S.
The world's ocean are absorbing carbon dioxide at an unprecedented rate and the resulting acidification is already altering marine ecosystems. We look at how ocean acidification is affecting shellfish and coral reefs.
Scientists call ocean acidification "the other carbon problem." When the ocean absorbs carbon dioxide from the atmosphere, it raises the pH of the water making it acidic. That shift makes sea animals' shell brittle, which makes a huge difference to…
video interview with b-roll, NewsHour…
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