Fomenting unhappy mischief…

I usually stay out of the fray at NZ’s political blogs, but sometimes it’s impossible to resist a brief plunge into bracing waters. Yesterday, David Farrar at Kiwiblog posted approvingly about the impending launch of a movie called Not Evil, Just Wrong, apparently intended as a counter to Gore’s Inconvenient Truth. Here’s Farrar:

The film compares the consequences of the ban on DDT, with the cost of trying to ban carbon emissions. They talk about how Al Gore would have you believe the sea level will rise by 20 feet in the near future, when in fact the IPCC say this would be over millennia.

Here’s Ed Darrell:

The film is both evil and wrong. Errors just in the trailer:

1: Claims that Al Gore said sea levels will rise catastrophically, “in the very near future.” Not in his movie, not in his writings or speeches. Not true. That’s a simple misstatement of what Gore said, and Gore had the science right.

[plus eight more]

It’s sad to see Farrar giving credence to the DDT ban myth — something that’s been shown to be the product of a US tobacco-funded attack on the WHO in the late ’90s. It’s even sadder to see his mischaracterisation of the climate problem:

And again I agree the long-term trend is for warming, but the hysteria over how it is urgent to have cut emissions by 40% by 2020 or the planet is doomed, is just that. In fact by 2020 the planet may still be in a cooling phase.

The “cooling phase” thing is based on something a German modeller didn’t say at a conference a few weeks ago. Climate Crock Of The Week provides the full context (you can hear what Latif actually said), and Joe Romm interviews the man to get the truth. The whole “cooling for 20 years” thing is a beat-up by cranks. And 40%? That’s an IPCC AR4 recommendation…

But Farrar’s misunderstanding runs deeper:

As we get better technology, and gradually transition to energy sources that produce fewer emissions, our carbon emissions will reduce. But 2020 is not some date of no return.

Sadly, we passed the point of no return a long time ago. We are now committed to considerable warming — our current emissions trajectory is pointing us at 4ºC by 2060 — and unless we take rapid steps to reduce global emissions, staying under the 2ºC “guardrail” is already looking unlikely. The longer we leave cutting emissions, the steeper the cuts we will eventually have to make (and the more expensive they will have to be) if we are stay within reasonable temperature bounds. Far from being a counsel of moderation, Farrar is allowing his misconceptions to mislead us into greater danger.

Farrar is of course a National party stalwart, credited by some with being the premiere spinmeister for the present government. If this post were just the ill-conceived ramblings of a right-wing blogger, designed as a dog whistle summons to the crazies who are his commentariat, then it would be worth ignoring. But Farrar’s site is NZ’s top ranking blog, and his thinking looks suspiciously like a reflection of what’s going on in the National caucus. It’s the fallacy of the false middle, based on placing yourself in the middle of a debate you deem to be polarised, but where only one side has the facts right. And that’s not the nutters in Kiwiblog’s comments calling for those who want action on climate change to be “hung, drawn and quartered”.

Take a giant step

The UK’s Committee on Climate Change, established to advise the British government on emissions targets and to report to Parliament on the progress being made towards achieving those targets, has just published its first annual report: Meeting Carbon Budgets – the need for a step change. It warns that the current rate of emissions reductions, running at about 1% per year, needs to be increased to 2% and perhaps 3% if the UK is to hit its relatively ambitious 34% emissions cut by 2020. Here’s how the Guardian reports it:

A green and pleasant land, with millions of electric cars powered from wind turbines and travelling between super-cosy homes and offices: that is the vision for Britain in 2020 set out today by the government’s climate watchdog.

That cleaner, greener country, playing its full part in averting disastrous global warming, is both possible and affordable, says the Climate Change Committee – but only if the government acts immediately to implement radical policies on energy efficiency and low carbon technologies, as well as dealing with the threat of the recession to carbon trading schemes.

The Times is more concerned with the suggestion that motoring taxes could be increased, but Richard Black at the BBC provides a good overview.

The report is well worth a read, not because the policy suggestions are directly relevant to NZ’s position (though encouraging household energy efficiency, electric vehicles and boosting renewables should be part of what we do), but because the Committee itself is a policy body that New Zealand sorely needs. Instead of arguing in parliamentary committee rooms about the existence of warming, this body takes the best scientific advice and applies it to determine credible policy objectives. That’s one reason why Britain’s current targets are amongst the most aggressive in the developed world. But the committee does much more: it reports on the progress being made, and establishes a “reporting to budget” process that would be familiar to anyone who has managed anything other than the smallest of businesses. And as this first report shows, if it looks like the budget forecasts are going to be missed, they are not afraid to recommend policy initiatives.

To me, that looks like a rational way to approach the issue. What a pity that instead NZ has leaders who are unwilling to lead, no effective mechanism for emissions reductions, and a government in thrall to big emitters. Climate policy needs to be made on the basis of rational analysis, not National’s paralysis.

[Taj Mahal]

Deep time, deep water

The last time CO2 hit a sustained level of 400 ppm 15-20 million years ago global average temperatures were 3 – 6ºC warmer than now, and sea level was 25 to 40 m higher, according to research released last week. That’s bad news, because the target for current international negotiations to find a successor to Kyoto is 450 ppm. The finding also provides support for James Hansen’s view that 350 ppm is the maximum “safe level” for CO2 if we want to inhabit a planet with ice at both poles.

Meanwhile, analysis of the Andrill core has discovered a “remarkably warm” period in Antarctica that occurred abruptly 15.7 million years ago, when the McMurdo Sound region could have had January air temperatures of 10ºC and sea temps up to 11.5ºC, according to a new paper in Geology.

Continue reading “Deep time, deep water”

Doctors orders: NZ “must rapidly halve its greenhouse emissions”

fatlenny.jpgIn a hard-hitting article in today’s New Zealand Medical Journal, a group of senior health professionals call for NZ to halve its greenhouse gas emissions by 2020. The spokesperson for the recently formed Climate and Health Group, Dr Alex Macmillan says:

Climate change has been described as the biggest global health threat of the 21st century, and the substantial health benefits of action should be fully included in decision-making, as should the harms of inaction.

According to the paper, the health benefits of action to reduce emissions include:

Continue reading “Doctors orders: NZ “must rapidly halve its greenhouse emissions””

A beginner’s guide to the importance of Arctic sea ice

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In this beginner’s guide Tom Wagner, NASA’s cryosphere programme manager, outlines why studying Arctic sea ice is important, illustrating his talk with some great graphics. Meanwhile, the NSIDC has announced the final figures for September’s sea ice minimum:

The average ice extent over the month of September, a reference comparison for climate studies, was 5.36 million square kilometers (2.07 million square miles). This was 1.06 million square kilometers (409,000 square miles) greater than the record low for the month in 2007, and 690,000 square kilometers (266,000 square miles) greater than the second-lowest extent in 2008. However, ice extent was still 1.68 million square kilometers (649,000 square miles) below the 1979 to 2000 September average.

NSIDC scientist Walt Meier thinks there may be some hope of “stabilising” the ice after recent heavy losses:

We’ve preserved a fair amount of first-year ice and second-year ice after this summer compared to the past couple of years. If this ice remains in the Arctic through the winter, it will thicken, which gives some hope of stabilizing the ice cover over the next few years. However, the ice is still much younger and thinner than it was in the 1980s, leaving it vulnerable to melt during the summer.

But will there be a longer term recovery back towards the sort of ice cover seen before 2000? The NSIDC team doesn’t think so.

NSIDC lead scientist Ted Scambos said, “A lot of people are going to look at that graph of ice extent and think that we’ve turned the corner on climate change. But the underlying conditions are still very worrisome.”

After a couple of cool summers, one wonders what impact another warm year might do to the ice. As ever, I shall be watching next year with great interest…