Please excuse my very doggy (and dodgy) Latin, which might loosely translate as “They warned, We ignored, We will suffer”.
However if the recent extraordinary range of extreme weather events continue and the very faint swing of public opinion continues towards the worried end, it might be replaced by a rather optimistic “Monēbant videmus Mutemus Mundum” or “They warned, We now see, Let us change the world”.
And the weather has been extraordinary China is going through its worst drought in 60 years, The Amazon basin has just been through its second “100 year drought” in 5 years during which it swapped from absorbing 1.5 billion tons of CO2 per year to releasing over 5 billion tons, or roughly the same as the USA economy. Thus the forest has probably emitted more CO2 than it absorbed in the last 5 years. This change from sink to source is exactly what climate science has warned would happen in a warming world. And it’s not just the big storms floods and droughts in Australia, Pakistan, Russia, Europe and the USA; it seems there is extreme weather almost everywhere as this Grist Post describes, while Arctic Ice extent over January was the lowest since satellite records began, suggesting that albedo feedback is also under way.
Craig Fugate, head of the US Federal Emergency Management Agency recently stated “The term 100-year event really lost its meaning this year.”
Ross Garnaut is clear on the link, saying “The greater energy in the atmosphere and the seas can intensify extreme events and I’m afraid that we’re feeling some of that today, and we’re feeling that at a time when global warming is in its early stages” He also said “the presence of uncertainty in the range of possible climate outcomes strengthens the case for climate change action”.
I believe that we are seeing the start of the major climate feedback mechanisms, as well as a taste of the extreme weather predicted.
Now the $64 Trillion question? What are we going to do about it? So far we are rearranging the deckchairs on the Titanic, squabbling amongst ourselves (both within and between countries) while the climate builds up a good head of steam. Once it picks up speed we don’t have a hope of stopping it.
Here in Australia there a few hopeful signs coming out of the federal government’s Climate Change Committee, with the Greens taking a hard line on compensation to business. This is important two ways. Firstly whatever agreement is reached is just the start of what needs to be a rapidly increasing price on carbon. If the agreement is complex, susceptible to financial manipulation, or does not refund the full cost of increasing energy prices to the least well off, then there will be a backlash and government will lack the guts to push forward. Secondly our major industrial companies are massive emitters of carbon, who have so far not considered it worthwhile to make significant changes in their operations. While ever there are loopholes, offsets etc etc they will find it cheaper to fudge the figures rather than getting on with the job. Compensation in the context of an initial (and probably minor) price on carbon allows them to take their time and see what happens next. Given that we actually need a massive emergency effort similar to putting the country (and the world) on an all out war footing, a sharp shock to the commercial system is the least we can do.
Most economists are quite relaxed about environmental and climate matters, as their faith assumes a generally increasing wealth, so future generations will be better able to handle the cost of our problems than we are. Personally I find this similar to belief in the tooth fairy but never mind. Martin Weitzman is more pessimistic, arguing in a recent paper that the “Fat Tail Distribution” makes all the difference. He argues that most economic costings of climate change ignore the less likely but catastrophic options which are the fat tail of the bell curve. If these are included the potential costs become overwhelming. He says “to ignore or suppress the significance of rare tail disasters is to ignore or suppress what economic theory is telling us loudly and clearly is potentially the most important part of the analysis”. He defines a 6oC increase in temperature in the next 100 years as the extreme, and assigns a probability of 3% to this on the basis of IPCC-4. Of course IPCC-4 is now long in the tooth and almost all of the research since then has increased the risks. Given that most economic reviews have already concluded that the cost of action is less than the cost of business as usual, we would surely be truly insane to continue as we are?
While discussing rationality, a university study in the US has found that sitting in a hot room increases the number of people who think climate change is a problem. We continue to discover that our treasured rational thinking is actually nothing but a bunch of stuck together ad hoc survival rules, exactly as you would expect from evolutionary theory. Unfortunately this is the century that will require us to be not only rational but committed, consistent and efficient.
However disaster is not inevitable, however likely it looks at present. Another report, this one from the WWF, suggests that a 100% transition to renewables by 2050 is possible. They say:-
“We have found that an (almost) fully sustainable energy supply is technically and economically feasible, given ambitious but realistic growth rates of renewable energy sources.”
“However, the path to this future world will deviate significantly from ‘business as usual’ and a few (difficult) choices will need to be made on the way.”
All we have to do is transform our energy infrastructure. We’ve done it before at least twice, during the transition from wood to coal, and from coal to petroleum. Third time lucky.










