Why Accept Global Warming And Not Free Trade?

Will at Ordinary Gentlemen is willing "to accept the consensus view of specialists in most fields" barring "real evidence of systematic bias or incompetence." He asks:

Why don’t we accord the same level of deference to economists? Shouldn’t the pro-free trade consensus within the field of economics be as bullet-proof as belief in global warming? It’s not a partisan issue – in my opinion, the best introduction to the benefits of international trade was written by Paul Krugman. And the strength of the pro-free trade consensus in economics is at least as robust as the consensus view among climatologists. There are a few high profile dissenters, but those exist in every field, including climatology.