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It doesn't take long for the notion that heretics like Lomborg are shouted down and not recognized because they upset Known Belief. For example, Copernicus upset the notion that the sun revolved around the earth. He was the heretic that was shouted down by the public and church, but look - he was right!
But Lomborg isn't Copernicus in this situation. The gentleman that discovered global warming is the heretic herre. Lomborg and Exxon represent the public deniers, just offset in time from when the heretic made his pronouncement on global warming.
And, just as a suggestion, a consensus doesn't prove anything right. What is the case is that the facts fit the global warming theory best. And many scientists agree that this is the case. Yes, they agree, but global warming isn't happening because they agree, it is the best theory for the known facts.