Archive by category | American Geophysical Union

AGU: Deep-sea volcano caught on tape

Footage of an eruption nearly 1,200 metres under the sea was unveiled this week at the AGU meeting. The 50-plus hours of high-definition film, complete with background sound, represent one of the first times that lava has been caught flowing on the deep sea floor. Read the full story here.  Read more

AGU: Don’t forget to check out Climate Feedback

I’d be remiss in not mentioning that my freelance colleague Harvey Leifert is blogging climate topics from AGU for our sister site Nature Reports Climate Change, here. And don’t miss their coverage of the Copenhagen negotiations; the site’s editor Olive Heffernan is there, as is my Nature colleague Jeff Tollefson.  Read more

AGU: Geoengineering costs

How much would it cost to dim the sun a little with a dusty layer of aerosol particles in the stratosphere? The service comes for free if you can find an obliging volcano, like Mount Pinatubo, but they can hardly be relied on in the long term. Some schemes for doing it to order, though, could be pretty cheap, according to an analysis by Alan Robock and colleagues at Rutgers.  Read more