I don't think I'm being clear enough. That wasn't a random columnist at the Independent. That was one of the 99.3% of climate scientists making a prediction. Maybe he's a wanker, maybe he's wrong - but if he's wrong and a wanker and he's still got 100 peer reviewed papers, what does that tell you about the process? Maybe it's fine and all his work is great and he was having a bad day, or otherwise making a random guess about a specific area of climate science he hadn't previously investigated. One bad apple can't spoil a batch of cider, obviously. But the "power", as it were, of the peer review process is that mistakes can found out because you have people all watching each others' data, methodology and analysis. So when someone with so many peer reviewed articles makes a prediction as utterly flawed as that - even if it's just to an Independent journalist - it's not just his own credibility that it harms.
Again, I'm not saying the guy's right. Honestly, I think we are causing climate change (and even if we aren't, there are plenty of areas of the environment - deforestation, mercury in water etc - where we unreservedly are having a negative impact). But when you have peer reviewed guys like this making wildly inaccurate predictions, and people like Dr Richard Lindzen who undoubtedly knows more than everyone in this thread about climate science, has written chapters for IPCC reports and a professor of meteorology at MIT saying that the consensus of climate change is a result of political pressures, I think it's grossly unfair to suggest that any not on board with climate change must be wankers. Maybe David Viner's right and Richard Lindzen's wrong, but how on earth would I know? They both know 100x more about this shit than I do. That's why I always find it so odd that people are so utterly vociferous - on either side of the fence - about what is right and what is wrong, when they clearly have no way of actually understanding it and even those with the most knowledge in the field get massive predictions wrong, and their papers get peer reviewed anyway. How people with so little knowledge can have so much faith in their belief is beyond me.