A flawed but interesting blog post about climate change and conspiracy theories does a good job of summing up what climate change deniers are actually alleging:
They argue that the governments of Europe, of the US, of Canada, of China and India, and indeed of much of the rest of the world–governments that rarely agree on anything, I might point out–are acting in concert to promote a bogus claim that the earth is heating up because of man-made release of carbon dioxide into the atmosphere. They claim that this conspiracy is being supported by the almost universal connivance of the world’s scientists, who are collectively falsifying data and hiding countervailing data. And all this is happening, they assert, despite the almost universal opposition of the world’s corporations, most of which, we know, are resisting having governments take any serious action to combat climate change, and in many cases (look at the US Chamber of Commerce), are actively challenging the whole notion of climate change.
When put that way, it really doesn’t sound terribly plausible. Of course, there will be new developments in science as we refine our models and collect more data about what is actually happening in the world. That is simply a consequence of the nature of the climate system and of scientific inquiry. To argue, however, that the world’s scientific and political community are cooperating to actively mislead people into thinking there is a problem where none actually exists is quite preposterous.
Note that I called the post ‘flawed but interesting’ because it contains a number of dubious claims not related to climate change – for instance, that only a fire hot enough to melt steel could explain the catastrophic failure of the World Trade Center towers on September 11th. As the BBC explains, the 800°C fires were hot enough to weaken the steel to the point where the weight of the towers could not be borne. While I wouldn’t endorse the entirety of the post, I do think the point about the alleged climate change conspiracy is well made.