How can the Americans be made to understand the facts?

Actually Pragmatist is flat out wrong. There are no scientists with any evidence counter to human activity changing the atmosphere and causing it to retain heat. Not one. Many Americans cling tightly to their religious or paranoid beliefs and do no research on their own. This guy Pragmatist is a classic of many non-thinking Americans -- he tells you do research then makes a claim that he cannot backup; he needs to do his research.

There's room to continue to research rates and effect. But there is a contingent of uneducated American whack jobs who are simply unaware of the amount of evidence -- to the point that anything so certain in our lives would be considered factual knowledge -- that the ongoing warming of the atmosphere is due to human activity. America is in the position to make the most difference, but the non-thinking whack jobs are very afraid of change. They would rather change came to them than to initiate change that will save many many billions of dollars.

The USA spews out 25% of the world's pollution. Isn't it about time they were man enough to acknowledge their pollution and to do something about it?

No I would not say so.The USA does not care how much CO2 goes into the air as long as it does not bother them. The USA wants cheap electricity from coal, low prices for gasoline, more and more cars etc.

They also do not care what you think about them.

the fact that anybody can try to deny that our pollution is contributing to global warming is quite worrying. that just shows how ignorant some of the earth's population truly is.

yes, the earths climate does go through cycles, and it has warmed up in the past, but we are not in one of those cycles! statistically we are overdue an ice age. when i say overdue, i am talking about time in an 'earth' sense, so tens of thousands of years.

quite simply, the evidence that we are warming up our planet is irrefutable and anyone who denies it needs to pull their head out of the sand and wake up!

by the way, i am not some hippy who goes and wipes oil off sea gulls on the coast of norway, just a regular guy!

Climate science (much of which originated in the United States) does not depend on the BBC's financial problems. I would suggest keeping an eye on Youtube for excerpts from episode 7.

Have you any evidence for this weird claim: "The Americans will not buy that episode because they don't agree." ?

According to the UK press, some TV NETWORKS in America have decided not show the final episode. That doesn't mean it won't be seen or purchased by millions of Americans. The Beatles did not sell the same records in Britain and America, but not because Americans would not pay to hear their music.

http://www.telegraph.co.uk/earth/earthnews/8889541...

GunnyT is assuming the warming is caused by orbital eccentricity, one part of the Milankovitch cycle. He does not understand that the warming and cooling attributable to Milankovitch cycles occurs over a very prolonged time period.

In the current phase we should be in a slow cooling

http://courses.washington.edu/holocene/KutzbachGue...

http://www.ithelps.ch/grosjean/Quaternary_Climates...

Bac REALLY needs to practice what he is preaching and open a book on Climate Change: Check out Malkovich Earth Orbit Cycles and Tschumi and Stauffer ice core studies, THEN tell us there is no scientific evidence. The question needs to be answered truthfully just what percentage of recent (200 year) climate change is directly attributable to mans efforts to feed, house himself, and travel.

The USA also feeds and clothes more people on the planet than the other countries combined. Put that in your crumpet and smoke it Limey.

Before you criticise others for not understanding facts, you need to understand them yourself. And your question clearly shows YOU DON'T.

Rather than getting all your information from government sponsored sources, and a TV network notorious for its willingness to push social and political viewpoints at the behest of the British government, do some research of your own like I have. Use the brain you have in your head to impartially, without any preconceptions, to analyse what people are saying and draw your own conclusions. There are literally hundreds of well respected, well qualified scientists and experts who have irrefutable evidence that proves man made pollution is not the defining factor in so called "global warming".

I think you have to use shorter words. Long words, like 'parochial' for exmple, get them all confused.

They can't, but they're collapsing as a world power, so they wont matter in a few years and we can fix they problems they have created