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Wednesday 19-Feb-2025 7:00 PM - 9:00 PM

Event Description

Gwynne Dyer has spent the past three years interviewing over a hundred climate scientists and engineers for his new book ‘Intervention Earth’. Geoengineering frightens them, and at the beginning, a clear majority ruled it out as ‘too dangerous’. By now, he reckons, a majority among climate scientists has reluctantly swung the other way: we must hold the heat down to keep our societies intact while we cope with the changes. Early research suggests that various forms of geoengineering are technically feasible and not even stunningly expensive, but it can only be a temporary patch, not a long-term solution. New emissions still have to stop, and most of the historic emissions will still eventually have to be removed. But climate engineering may be the necessary bridge to get us through the crisis without a catastrophe. That’s why Gwynne borrowed Jim Lovelock’s famous phrase ‘planetary maintenance engineers’ (from forty years ago) for the title of this lecture. We are already starting to take on that role in various ways, although we don’t yet admit it to ourselves. Human beings will have to intervene to keep the basic systems we have damaged running, at least until and unless we can restore most of the natural systems and the old climate. We will not see the end of this emergency in our lifetimes, nor will our children in theirs.

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