The earth's climate is more sensative to rises in CO2 than previously thought. There simply isn't time to cut our emissions to drastically that abrupt climate change and runaway global warming will be avoided.

I suggest we remove the CO2 from the air after it has been emitted using biosequestration. Nature already removes about half of mankind's CO emissions each year, but that is expected to reduce 30% by 2030.

I suggest we improve nature's ability to remove the CO2 from the air using genetic engineering-perhaps seeding a GMO into the ocean. This is a low cost, highly scalable, and technically feasible solution to global warming.

Instead, everyone is talking about cutting emissions to solve global warming, when instead it is weak mitigation strategy. We could spend trillions reducing our emissions, and still suffer dangerous warming. As soon as abrupt climate change strikes, the only strategy will be crisis managment, because we won't have the resources to solve it.

Brad Arnold, St Louis Park, USA/MN

Surely, what's true of the "climate-change deniers" is also true of the climate-change promoters - more so, in my opinion.

Steve, Beaconsfield, Quebec, Canada

Well the "man cannot change the planet" certainly seem to have the times in their sights. Virtually every article has two or three rebuttals. I'm surprised Big oil and Air transport have so many low level lobbyists...

Elwin parsley, london , UK

"Now think of religiously motivated, anti-science lobby groups, ..., climate-change deniers."

That's rich!
How do you think the fantasy theology of anthropomorphic global warming got started in the first place? There never was any evidence whatsoever for the 'Greenhouse Effect' hypothesis anywhere, (outside of a small enclosed structure - a greenhouse). Just a campaign of constant publicity, luddism and the filling of feeding bowls.

Those who 'deny' the wilder projections of Big Green just expect one simple thing - consistant, considered evidence rather than grossly exaggerated P.R.

Brian Vallance, LEFKIMMI, Greece

So THAT'S where all this global-warming-is-caused-by-man stuff has come from!

PR, Cornwall,

"Now think of religiously motivated, anti-science lobby groups, animal rights extremists, climate-change deniers. Through repetition, their dangerous whispers carry farther than their small constituencies merit, sometimes awarding them a disproportionate influence over public policy."

Of course, to be fair, there are some who say that the wholesale alarmism built up by the climate change industry is the epitome of anti-science. Bogus, pseudo, cherry-picked and unrepresentative facts, and assertions passed off as facts, co-opted to add false gravitas to a political point of view. Rather like the whole passive smoking razzamatazz that's built up in the last 12 months, the whole circus recognises, as your article suggests, that repetition knocks logic and truth into a cocked hat as far as being the prime tool of persuasion.

I'd like to hear whether the psychologists consider this blind belief as being a fixed condition. Perhaps over-exposure will lead most of us to become skeptics?

Simon Stephenson, Windermere, UK

How about cliate change proponents? They seem determined to bully everyone else into sharing their mindset through boring repetition? Funny how you don't mention them, when they are the most obvious example of the case you are trying to make. In contrast, the 'deniers' which you mention, are given little or no time whatsoever to give theri views.

Craig , Liverpool,

"...extremists, climate-change deniers. Through repetition..."

This presupposes the belief that the apparent change in climate is due to human influences - some may argue that it is this idea that has been peddled forth as a truth, when in reality the so called change was always going to happen due to natural cyclic weather patterns.

A perfect example of your journalistic piece I believe.

Ian, Chesterfield,

What psychologists have apparently now discovered - probably by involved research - is something that media people and public relations people have known and practised since time immemorial. Politicians know this too as they use every device to force our behaviour into directions they say are for our "betterment". In their case it's "easy-peasy" actions which are far easier to do than govern a country for the benefit of the people.

Ken Courtney, Southampton, UK

Repetition is persuasion was a mantra of Paul Goebbels, a few years back. I wonder what became of him?

David Masu, Zürich,

"stifle new ideas to protect their own interests" is an interesting statement a few lines after the last paragraph of the first piece. "we should not close our ears" is a classic case of a phrase that actually means the opposite, something like "will someone make the whackos who don't agree with the establishment position shut up?"

Andy, Perth,

Why worry about fringe groups when we are all indoctrinated on a daily basis by that greatest of all opinion manipulators, . . . the BBC!

And at our own expense too!

Mark, London, UK

Yes! Note how with the inventions of radio and TV, people have become flamming idiots all repeating the same foolish ideas that the establishment media bangs into their heads.

Mark, VA, USA