My thoughts on this matter were prompted by an article on Spiked.com by Brendan O'Neill, "Global Warming: the chilling effect on free speech". Quite a good piece. Here's an excerpt:
Whoever thought that serious commentators would want it made illegal to have a row about the weather? One Australian columnist has proposed outlawing ‘climate change denial’. ‘David Irving is under arrest in Austria for Holocaust denial’, she wrote. ‘Perhaps there is a case for making climate change denial an offence. It is a crime against humanity, after all.’ (1) Others have suggested that climate change deniers should be put on trial in the future, Nuremberg-style, and made to account for their attempts to cover up the ‘global warming…Holocaust’ (2).
The message is clear: climate change deniers are scum. Their words are so wicked and dangerous that they must be silenced, or criminalised, or forced beyond the pale alongside those other crackpots who claim there was no Nazi Holocaust against the Jews. Perhaps climate change deniers should even be killed off, hanged like those evil men who were tried Nuremberg-style the first time around.
Whatever the truth about our warming planet, it is clear there is a tidal wave of intolerance in the debate about climate change which is eroding free speech and melting rational debate. There has been no decree from on high or piece of legislation outlawing climate change denial, and indeed there is no need to criminalise it, as the Australian columnist suggests. Because in recent months it has been turned into a taboo, chased out of polite society by a wink and a nod, letters of complaint, newspaper articles continually comparing climate change denial to Holocaust denial. An attitude of ‘You can’t say that!’ now surrounds debates about climate change, which in many ways is more powerful and pernicious than an outright ban. I am not a scientist or an expert on climate change, but I know what I don’t like - and this demonisation of certain words and ideas is an affront to freedom of speech and open, rational debate.