First, all over the world, temperatures have been dropping in a way wholly unpredicted by all those computer models which have been used as the main drivers of the scare. Last winter, as temperatures plummeted, many parts of the world had snowfalls on a scale not seen for decades. This winter, with the whole of Canada and half the US under snow, looks likely to be even worse. After several years flatlining, global temperatures have dropped sharply enough to cancel out much of their net rise in the 20th century.
Ever shriller and more frantic has become the insistence of the warmists, cheered on by their army of media groupies such as the BBC, that the last 10 years have been the "hottest in history" and that the North Pole would soon be ice-free – as the poles remain defiantly icebound and those polar bears fail to drown. All those hysterical predictions that we are seeing more droughts and hurricanes than ever before have infuriatingly failed to materialise.
Even the more cautious scientific acolytes of the official orthodoxy now admit that, thanks to "natural factors" such as ocean currents, temperatures have failed to rise as predicted (although they plaintively assure us that this cooling effect is merely "masking the underlying warming trend", and that the temperature rise will resume worse than ever by the middle of the next decade).
Secondly, 2008 was the year when any pretence that there was a "scientific consensus" in favour of man-made global warming collapsed. At long last, as in the Manhattan Declaration last March, hundreds of proper scientists, including many of the world's most eminent climate experts, have been rallying to pour scorn on that "consensus" which was only a politically engineered artefact, based on ever more blatantly manipulated data and computer models programmed to produce no more than convenient fictions.
Thirdly, as banks collapsed and the global economy plunged into its worst recession for decades, harsh reality at last began to break in on those self-deluding dreams which have for so long possessed almost every politician in the western world. As we saw in this month's Poznan conference, when 10,000 politicians, officials and "environmentalists" gathered to plan next year's "son of Kyoto" treaty in Copenhagen, panicking politicians are waking up to the fact that the world can no longer afford all those quixotic schemes for "combating climate change" with which they were so happy to indulge themselves in more comfortable times.
Suddenly it has become rather less appealing that we should divert trillions of dollars, pounds and euros into the fantasy that we could reduce emissions of carbon dioxide by 80 per cent. All those grandiose projects for "emissions trading", "carbon capture", building tens of thousands more useless wind turbines, switching vast areas of farmland from producing food to "biofuels", are being exposed as no more than enormously damaging and futile gestures, costing astronomic sums we no longer possess.
All this isn't to say that scientists did not speak up earlier than 2008, but from recent news reports, many covered here as well, 2008 was, indeed, the year which the whole "man-made" global warming theme started unraveling at massive speeds.
kudos to The Telegraph for daring to state the obvious, something our newspapers here in the U.S. wouldn't dare to do.