Maybe the BBC programme would better have been called “Climate Change – The Myths”
The BBC continued its climate change propaganda season last night with David Attenborough’s well trailered “Climate Change – The Facts?”
The opening sequences, recorded against film of hot weather and including these quotes, left no doubt of where the programme was headed:
“Right now we are facing our greatest threat in thousands of years – climate change”
“What we’re doing right now is we’re so rapidly changing the climate, for the first time in the world’s history people can see the impact of climate change”
“Greater storms, greater floods, greater heatwaves, extreme sea level rise”
“All of this is happening far faster than many of us thought possible”
Attenborough shows this graph of global temperature trends, (though omitting satellite temperature measurements which show no [significant] increase since 1998). But he fails to explain why temperatures rose sharply in the early 20thC, long before CO2 emissions began to rise significantly.
Nowhere either does he tell us that the 19thC marked the end of the Little Ice Age, probably the coldest period since the end of the Ice Age.
In order to scare people about this small amount of warming, he has to bring out the extreme weather bogeyman.
Peter Stott – “It’s having a dramatic effect on our weather” “The frequency of extreme temperatures is increasing”
Michael Mann – “You’re going to get more frequent and intense heatwaves. You’re going to get worse drought”.
The example of last summer’s heatwave in the UK is used as an example of climate change, even though it was actually no hotter than the summer of 1976.
While average summer temperature temperatures may be a bit higher, winters are also milder, so it is not clear why the climate is any worse. Is Oxford’s climate worse then Newcastle’s, just because average temperatures are higher?
As for Stott’s ludicrous assertion that the frequency of extreme temperatures is increasing, milder winters will simply offset hotter summers.
In any event, daily temperature extremes are not increasing, in the UK at least. The hottest day in CET was 33.2C, set in 1976, and equalled in 1990. No day last summer got anywhere near that.
In fact, there is considerable evidence that heatwaves are actually becoming less common, at the same time as cold spells are also less frequent. In other words, temperatures are becoming much less extreme. This is certainly the case in the US, as the Federal climate report admitted:
They then show a film of some dead bats in Queensland, killed by a heatwave when temperatures reached 42C. Yet the all time record for Queensland is 49.5C, set in 1972!
Picking single weather events is meaningless. But this does not stop Attenborough preposterously saying:
“Animals of all kinds are struggling to adapt to rapidly changing conditions”
As for droughts, there is no evidence whatsoever that they are getting worse, as the IPCC AR5 admits:
And in the US, as Mann ought to know, rainfall has steadily been increasing since 1900. The calamitous droughts of the 1930s and 50s are a thing of the past: