sequestration

Geoengineering down under: Is Stratospheric Sulphate Injection Completely Reversible?

by Simon Terry October 11, 2011

This guest post is by Simon Terry, Executive Director of the Sustainability Council of New Zealand. The risk rating on stratospheric sulphate injection went up another notch on the basis of material presented at a recent geoengineering symposium in Australia organised by the Australian Academy of Science, while the existing climate change risks did not [...]

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Geoengineering on the table

by Bryan Walker April 10, 2009

John Holdren, recently confirmed as President Obama’s science adviser, has said in an interview that discussions at the White House include looking at geoengineering options to reduce the effects of global warming. He stressed that it would be a last resort, but can’t be ruled out of discussion if the failure to cut greenhouse gas [...]

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More than dreaming

by Bryan Walker March 11, 2009

My review of Broecker and Kunzig’s book Fixing Climate drew attention to the work of Klaus Lackner, a physicist at Columbia University who has been working on ways of scrubbing CO2 out of the atmosphere for sequestration. Lackner considers sequestration the harder problem of the two and believes that the only method adequate in the [...]

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Solar wind sculptures

by Gareth July 22, 2008

Time to nail my colours to the tall thing. Submissions on Mainpower’s Mt Cass windfarm consent application close on August 1st, and I’m running out of time to get one in (being busy, and all that). The opposition is getting itself organised, with a web site to co-ordinate dissenters, including a very nice gallery of [...]

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Mrs O’Leary’s Cow

by Gareth July 2, 2008

Did you know that all cows are carbon neutral? That all the fuss about forcing farmers into an emissions trading scheme is stuff and nonsense? You do now, thanks to the sterling efforts of the Carbon Sense Coalition, an Australian organisation. They issued a press release yesterday, news of which reached me via the Royal [...]

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Towards credible offsets

by Gareth November 7, 2007

Carbon offsets are often criticised as no better than medieval “papal indulgences” – pay a few dollars and have your sins forgiven, then feel free to sin again – but they have a valuable role to play in the transition to a low carbon economy. Provided, of course, that the offsets – the emissions reductions [...]

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