Look at the graph to see the evidence of global warming
Met Office data show only a tiny change in world temperatures
Readers of this column do not need to be reminded why it is so important for
us to know whether the world is truly in the grip of runaway global warming,
or whether this belief has all been based on a colossal misreading of the
scientific evidence. One reason why it is so vital for us to understand
this, of course, has been all those devastating political responses to this
fear, which promise to change our way of life out of recognition.
Just in Britain alone, paying for our Climate Change Act is officially due to
cost us up to £18 billion a year. It is now driving our entire national
energy policy, threatening us with ever more crippling bills, power
blackouts, and the sight of our countryside being covered in ever more giant
wind factories. In convincing the world that we must make such a dramatic
response to man-made climate change, nothing has been more persuasive than
those graphs that purport to show global temperature soaring to dangerous
levels.
That iconic “hockey stick” graph, showing temperatures recently shooting up
into the stratosphere, may now have been discredited. But just as important
have been all those graphs showing how temperatures have changed in recent
decades. These have the effect of greatly exaggerating those changes, by
narrowly focusing just on what are called temperature “anomalies”, showing
how they have risen and fallen round their average level in the past 30-odd
years.
What the graphs do not show is the actual level of global temperature, as it
is measured above freezing point. In other words, they leave out by far the
greater part of the total picture. So the respected Canadian environmental
writer, Lawrence Solomon, recently had the bright idea of publishing in his
Financial Post newspaper column a graph showing the temperature changes of
the past 15 years in proper perspective, using figures from the most
prestigious of all official temperature records, compiled by the UK Met
Office and its Hadley Centre.
The result, as can be seen here, is startling. By including that huge part of
the data usually left out, we see that the line looks virtually flat. The
actual changes look relatively so small, compared with those rises and falls
of several whole degrees the world survived in the past, that any idea that
we are facing catastrophic warming pales into insignificance. In recent
months, even such fanatical proponents of the warmist orthodoxy as Rajendra
Pachauri, chairman of the UN’s Intergovernmental Panel on Climate Change,
James Hansen of Nasa, and the Met Office have all had to concede that since
1997, the warming trend has stalled virtually to a standstill. Of course,
there was a modest temperature rise in the 20th century, as a continuation
of the warming that began 200 years ago as the world naturally emerged from
those centuries of cooling known as the Little Ice Age. But the 0.5C rise
between 1976 and 1998 was no greater than the 0.5C rise between 1910 and
1940 (with 35 years of cooling between them, so that the net rise in the
past century has been only 0.8C).
Yet it was on that modest rise in the 1980s and 1990s that the whole of the greatest and most expensive scare in history was launched on its way, with all the terrifying political and economic consequences we see around us today. The very last people to recognise this, alas, will be our politicians, because they seem incapable of looking properly at the evidence. The price we are all increasingly having to pay for their gullibility is incalculable.
Yet it was on that modest rise in the 1980s and 1990s that the whole of the greatest and most expensive scare in history was launched on its way, with all the terrifying political and economic consequences we see around us today. The very last people to recognise this, alas, will be our politicians, because they seem incapable of looking properly at the evidence. The price we are all increasingly having to pay for their gullibility is incalculable.
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