Undersea vents a ‘time machine’ on climate change

Jason Hall-Spencer thinks he has seen the future of the world’s oceans while diving at marine volcanic sites around the world, where jets of carbon dioxide fizz out of vents on the sea floor.

Most scientists use computer models or laboratory experiments to try and predict how the oceans will change because of the growing amount of carbon dioxide being absorbed from the atmosphere.

But Dr. Hall-Spencer, an associate professor at the School of Marine Science and Engineering at the University of Plymouth, in the United Kingdom, said he thinks the best way is to dive on volcanic vents, where carbon dioxide is naturally injected into the ocean.

“It’s like a time machine looking into the future of how the oceans are going to acidify,” he said at the annual conference of the American Association for the Advancement of Science, which is under way in Vancouver this weekend.



Mark Hume, Globe and Mail, 18 February 2012. Full article.

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