how are Prince charles and the ruling class is going to try and spin this one.
Steadily climbing orange and red bands on the graph show the computer predictions of world temperatures used by the official United Nations’ Intergovernmental Panel on Climate Change (IPCC).
The estimates – given with 75 per cent and 95 per cent certainty – suggest only a five per cent chance of the real temperature falling outside both bands.
But when the latest official global temperature figures from Britain’s Met Office are placed over the predictions, they show how wrong the estimates have been, to the point of falling out of the ‘95 per cent’ band completely.
The graph shows in incontrovertible detail how the speed of global warming has been massively overestimated. Yet those forecasts have had a ruinous impact on the bills we pay, from heating to car fuel to huge sums paid by councils to reduce carbon emissions.
The eco-debate was, in effect, hijacked by false data. The forecasts have also forced jobs abroad as manufacturers relocate to places with no emissions targets.
A version of the graph appears in a leaked draft of the IPCC’s landmark Fifth Assessment Report due out later this year. It comes as leading climate scientists begin to admit that their worst fears about global warming will not be realised.
Academics are revising their views after acknowledging the miscalculation. Last night Myles Allen, Oxford University’s Professor of Geosystem Science, said that until recently he believed the world might be on course for a catastrophic temperature rise of more than five degrees this century.
But he now says: ‘The odds have come down,’ – adding that warming is likely to be significantly lower.
Prof Allen says higher estimates are now ‘looking iffy’.
The graph confirms there has been no statistically significant increase in the world’s average temperature since January 1997 – as this newspaper first disclosed last year.
At the end of last year the Met Office revised its ten-year forecast predicting a succession of years breaking records for warmth. It now says the pause in warming will last until at least 2017. A glance at the graph will confirm that the world will be cooler than even the coolest scenario predicted.
Its source is impeccable. The line showing world temperatures comes from the Met Office ‘HadCRUT4’ database, which contains readings from more than 30,000 measuring posts. This was added to the 75 and 95 per cent certainty bands to produce the graph by a group that amalgamates the work of 20 climate model centres working for the IPCC.
Predictions of global warming, based on scientists’ forecasts of how fast increasing CO2 levels would cause temperatures to rise, directly led to Britain’s Climate Change Act. This commits the UK to cut emissions by 80 per cent by 2050.
1977 – THE YEAR WE WERE TOLD TO FEAR TERROR OF…GLOBAL COOLING
In the Seventies, scientists and policymakers were just as concerned about a looming ‘ice age’ as they have been lately about global warming – as the Time magazine cover pictured here illustrates.
Temperatures had been falling since the beginning of the Forties. Professors warned that the trend would continue and food crises were going to get worse because of shorter growing seasons.
Newsweek magazine reported that evidence of cooling was so strong ‘meteorologists are hard-pressed to keep up with it’. But, it lamented, ‘scientists see few signs that government leaders anywhere are even prepared to take the simple measures of introducing the variables of climatic uncertainty into economic projections’. It said the planet was already ‘a sixth of the way towards the next ice age’.