Climate business – Page 20

The Climate Show #35: elections, extremes and a big wind

[youtube http://www.youtube.com/watch?v=VeF_85fk8-s&w=480]

We’re running a bit late with this one: recorded last week before the big wind left Gareth powerless for six days (a bit like Glenn’s PC), John Cook ruminates on the result of the Australian election, the boys marvel at the Mail’s myth making about Arctic sea ice, and look forward to the release of the first part of the next IPCC report. And much, much more. Show notes below the fold…

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Our “fair share” of future disaster

The New Zealand Government has taken refuge from the challenge of climate change by recasting it as a matter of political positioning. This is nowhere more clearly seen than in the frequently reiterated claim that we are doing our “fair share” in the international effort to reduce emissions. It’s a brash claim in any case, when our unconditional 5 percent reduction target on 1990 levels by 2020 is compared with the 30 percent unconditional target of Norway and Switzerland or the 20 percent target of the EU as a whole. But the Government prefers comparison with our “trading partners” Australia, America and Canada, and also largely excludes the emissions associated with farming on the grounds that the world needs the food we produce.

But brash or not what is convenient about the “fair share” argument is that it transfers attention from the alarming reality of climate change to the much more familiar and comfortable world of political negotiation. It enables Ministers to busy themselves with trying to get the best deal they can for the country vis-à-vis other countries, to protect the national interest, to preserve competitive advantage. Buried in such useful activity they can pretty well forget the massive and threatening question mark that climate change puts over the continued use of fossil fuels.

On the domestic front it fits well with adversarial politics, as was all too apparent in question time in the House a couple of weeks ago when Green MP Kennedy Graham questioned the Climate Change Minister about the 5 percent reduction target.

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Sunday morning Antarctica, and the future of transport

Chris Laidlaw interviewed the new Director of the British Antarctic Survey, Professor Jane Francis, in his Sunday Morning programme on National Radio in the weekend. I thought the discussion worth drawing attention to as an exemplar of the kind of thoughtful interviewing climate science deserves but only occasionally receives. The listening public also deserves such interviews from the media if it is to understand the weight of the scientific consensus on climate change. Respect is due to Laidlaw’s understanding of the basic thrust of climate change and its implications, making him well equipped to elicit from Professor Francis a very clear account of her work on Antarctic forest fossils and more generally on the threatened sea level rise from melting in the West Antarctic Ice Sheet.

Francis has a fascinating story to tell of her work on fossil plants in the Antarctic and the evidence from the fossils that the continent some 100 million years ago was forested in a period when the globe was in a warm period sufficient to melt polar ice. She discussed with Laidlaw the ways in which trees probably coped with the months of cold but not freezing darkness each year by moving into a kind of dormancy.

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Beatin’ the heat: cut carbon or we’re cooked

The area of land affected by extreme heatwaves is expected to double by 2020 and quadruple by 2040, and there’s no way we can stop it happening according to a new paper by Dim Coumou and Alexander Robinson – Historic and future increase in the global land area affected by monthly heat extremes (Environmental Research Letters, open access). However, the researchers find that action to cut emissions can prevent further dramatic increases in heat extremes out to the end of the century.

The paper’s made headlines around the world — see The Guardian, Independent, and Climate Central — most focussing on the inevitability of more, and more intense, heat events in the near future. Dana Nuccitelli at The Guardian provides an excellent discussion of the science behind the new paper so, to avoid reinventing the wheel, I’m going to focus on a fascinating chart from the paper, and then ponder the implications for climate policy.

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TDB Today: overshoot and the end of life as we know it

On Tuesday, the world whizzed past Earth Overshoot Day — the day in the year when we go beyond what the planet can produce or absorb in a year, and start consuming our natural capital. Like fishermen taking more fish than can be replaced by the remaining population, we risk running out of the very thing we value most, as I explore in my column at The Daily Blog this week — Living off our natural capital, or the end of the world as we know it is nigh. Comments over there, please.