Blogs & Ecology

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To save Antarctica from following the fate of the (doomed) Arctic ice cap, we must place our faith in phytoplankton, says Victor Shahed Smetacek. Though it may already be too late to save the Arctic -- as we've written before, most scientists predict it will be gone by century's end -- it is possible that we could forestall the wholesale melting of the Antarctic ice cap if we start dumping large amounts of iron into the Southern Ocean.

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The Guardian has been playing host to a lively debate between Wallace Broecker, a world-renowned climate scientist at Columbia University (and originator of a scheme to deploy millions of tree-like CO2 "scrubbers"), and Bill Hare of Greenpeace. It kicked off with a lengthy piece by Broecker challenging Greenpeace's stand on ocean storage last week and has now seen the two take each other's arguments head-on. ...

It turns out noted science writer -- and 2007 "Australian of the Year" (not to mention a TH favorite) -- Tim Flannery is an advocate of geoengineering. Specifically, he supports a scheme in which sulfate aerosols would be injected into the stratosphere -- essentially replicating the climatic effects of a volcanic eruption -- to reflec...