Well argued, and from a base of actual knowledge, which is clearly found wanting in some of the detractors?
A rise of just 2C, as attested to by the palaeoecological record, will be enough to melt the frozen tundras, and release the trillions of tons of methane they hold.
Ditto various continental shelves!
The release of this methane, which by the way equates per unit, to 21 units of carbon, will increase global temperature by at least a further additional 3C, making a total rise in ambient temps, of 5C Min.
A rise in average ambient temperatures of just 5C, will turn the British isles into a windswept salt laden desert, with wind speeds regularly exceeding 300Kph!
Nothing could or will grow in such an environment, and no normal commerce would be possible.
Nonetheless, climatic conditions there, would pale into insignificance, beside the almost endless and destructive storms, that would ravage more tropical climes, with the frequency, season and destructive abilities of cyclones, hurricanes, tornadoes and summer storms, trebled.
Long before we see any of this, our food production possibilities will be seriously curtailed; and or, largely limited to under bullet/hail proof polycarbonate and serviced via reliable sea water, filtered through ag pipes, wrapped in salt filtering membrane. Plants doing the work of pumps, all while providing pristine collectable reusable evaporate and life preserving oxygen!
Justice will be served in full measure, on the offspring of all who stood in the way of essential, climate moderating change.
[Please please, live to see it!]
We can actually ring in these changes; and peacefully reduce population numbers, all while prospering every economy.
The only ones adversely affected?
Those with an addiction to fossil fuels, or large shareholdings in same.
Or indeed, a predilection for the most expensive alternatives, thereby effectively and endlessly, extending our reliance on fossil fuels indefinitely!
Rhrosty.

Do catch up Julian, you are sounding like a cracked record, stuck in the groove, & you know how out of date records are don't you, or do you?

This old boogeyman is long past. Time to get a new catastrophe to write about.

This article is grotesque; the predictions by the World Bank and this other mob are predicated on discredited theories about climate sensitivity.

For a definition of climate sensitivity see:

http://theclimatescepticsparty.blogspot.com.au/2012/10/has-man-made-global-warming-been.html

http://theclimatescepticsparty.blogspot.com.au/2012/10/has-global-warming-been-disproved-part-2.html

Anyway I'm surprised the author didn't rely on this paper which predicts temperature increases of 12C:

http://www.pnas.org/content/107/21/9552

This isn't science, it is science fiction and this article relies on this nonsense.

Candide, do you realise what humungous amounts of money PriceWaterhouseCoopers and their kind stand to make if 'environmental accounting' is given governmental approval? Think on that for a moment, then consider whether they don't have just as much motivation to be 'envirocrooked' as, say, James Hansen or Peter Gleick.

As for the World Bank, it doesn't just manufacture the money, you know, it has to get it from somewhere: and terrifying the crap out of taxpayers and governments who don't know any better is a very effective way of securing copious supplies of ready cash.

As a taxpayer I am not terrified Jon J - just depressed that people like you are so frightened of the facts that you would rather the human race faces a gruesome future that do the hard yards here and now so that the world will be an OK place for people in the future. The real people haters are you and your ilk.

Candide says:

"The real people haters are you and your ilk."

Not true; the AGW supporters are the misanthropes:

http://theclimatescepticsparty.blogspot.com.au/2012/04/our-abc-green-narrative.html