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22/3/2013
As the realities of global climate change become ever more alarming, advocates of technological approaches to "geoengineer" the planet's climate are gaining a following.
But the technologies that are promoted -- from spraying sulphate ...
19/10/2012
It was only a matter of time before somebody broke the fragile social and political consensus surrounding
geoengineering, and had a first crack at "experiment Earth".
The news that American businessman Russ George has dumped 100 tonnes ...
10/3/2012
“About 74,000 years ago,” Lynas began, “a volcanic event nearly wiped out humanity. We were down to just a thousand or so embattled breeding pairs. We’ve made a bit of a comeback since then. We’re over seven billion strong. In half a million ...
9/7/2011
Techno-fix ideas include artificial trees and firing silver iodide into clouds to produce rain.The alert on the Climate Ark website in January 2009 was marked urgent: "Take action: A rogue science ship is poised to carry out risky ...
19/6/2011
If you haven`t yet heard, hell froze over last week. Oddly, this is likely to be bad news for a warming planet.
On Monday, more than 125 environmental groups sent a scathing letter to Rajendra Pachauri, the Nobel prize-winning head of ...
9/12/2010
It has an appealing symmetry to it: If we got ourselves into this climate mess by digging up and burning coal, maybe we can fix it by creating some more coal and putting it back into the ground.
That very idea, involving the ...
30/9/2010
Win-win solutions can be hard to come by. But if Cornell University soil scientist Johannes Lehmann is right, there may be a way to lower our emission of heat-trapping greenhouse gases, save millions of people's lives, and significantly boost the ...
23/8/2010
Mimicking volcanoes by throwing particles high into the sky. Maintaining a floating armada of mirrors in space. Burning plant and other organic waste to make charcoal and burying it--or burning it as fuel and burying the CO2 emissions. Even ...
19/12/2009
The climate change summit proved to be a "spectacular failure even according to its own terms," but civil society had "some successes," such as the inclusion of certain issues on the climate agenda, and making the voice of the South heard loud ...
17/12/2009
When Victor Smetacek and his colleagues cruised to the Southern Ocean in January 2009, they hoped to launch straight into pouring ten tons of iron sulphate into the waters below. Instead they spent days on board cranking out a risk assessment of ...
26/9/2009
Earth is busted. Like a supercomputer whose elaborate code has developed a few bugs, the core operating systems of the planet are frayed: Ocean populations are collapsing, forests are disappearing, soils have become thin. Perhaps most worrisome, ...
9/9/2009
Frank Raes is head of the climate change unit at the Joint Research Centre's (JRC) Institute for Environment and Sustainability.
He was speaking to Susanna Ala-Kurikka.
To read a shortened version of this interview, please click ...
8/4/2009
Campaigners have launched a protest against a proposed form of
geoengineering that they say is gaining popularity despite being untested and fraught with potential social and environmental repercussions.
Biochar, at its most ambitious, ...