What most convinces me that global warming is real is that those who argue against it usually sound about as honest and trustworthy as a used car salesman.

Ian Wishart released a new book recently, Air Con, all about how global warming is a big big phony. I browsed a bit of it because I like to be reasonably well informed about important scientific matters regarding the planet Earth.

What Ian doesn’t seem to understand is that if you’re going to question the integrity of scientists, it’s a good idea to have the absolute highest integrity yourself. So if you’re going to criticise a scientist for using the word ‘probably’ in their articles, it’s a good idea to not also have used the word ‘probably’ in your own work two paragraphs previously. And if you’re going to quote statistics, put them in context – for example, don’t tell us how many scientists don’t believe in global warming if you’re not going to tell us how many scientists do. Especially if you’ve only just criticised Al Gore for manipulating statistics to suit his purpose – most likely the reader will now be sensitive to how you could also be manipulating statistics yourself.

Radical politicians should never be trusted to talk about science for exactly the same reason that compulsive liars should never be trusted to talk about science.

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