« Previous | Main | Next »

Massive Estimates of Death are in vogue for Copenhagen

Post categories:

Richard Cable | 13:38 UK time, Monday, 1 June 2009

The successor to the Kyoto Protocol will be negotiated in large part at the United Nations Climate Change Conference hosted in Copenhagen this December, and as such the lobbying, horsetrading and politicking has already begun in earnest. Judging by the early entries, the theme seems to be Massive Estimates of Death.

kofi_annan226x226.jpgThe St James's Palace Nobel Laureate Symposium last week compared global warming to all-out nuclear war. Meanwhile, the Global Humanitarian Forum, headed by former UN Secretary General Kofi Annan, released a 103-page report ('Anatomy of a Silent Crisis') estimating that 'every year climate change leaves over 300,000 people dead, 325 million people seriously affected, and economic losses of US $125 billion.'

These are genuinely alarming, sit-up-and-pay attention sort of figures. The problem is that once you've sat up and paid attention enough to examine them a bit more closely, you find that the means by which the figures were arrived at isn't very compelling.

Referring to the 300,000 souls, page 1 of the reports states: 'These figures represent averages based on projected trends over many years and carry a significant margin of error. The real numbers could be lower or higher...' before going on to say, 'These already alarming figures may prove too conservative.' Or not, as the case may be.

Later, in the section entitled 'Attribution of weather-related disasters to climate change', it says 'there is not yet any widely accepted global estimate of the share of weather-related disasters that are attributable to climate change' before going on to make one up by the unusual expedient of using earthquake disasters as a proxy for the weather. (See page 86 for the full explanation.)

This is just a snapshot, but it's fairly representative. The report contains so many extrapolations derived from guesswork based on estimates inferred from unsuitable data sets that you have to ask some serious questions about the methodology.

Cryptically, Mr Annan states in the introduction: 'Humanity is facing a rare challenge. But it is a common challenge.' Like the report itself, you know what he's driving at, but have to ask yourself if there wasn't a better way of putting it.

Related blog: Thermonuclear armageddon and climate change: a fair likeness?
Related blog: Major rivers aren't drying up (or how alarmism doesn't help)


BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.