Lomborg represents a new generation of deniers. The first generation denied that global warming was happening at all. When too much evidence came in, 2nd generation deniers appeared. They argued that global warming was happening, but that human activities had nothing to do with. The evidence has overwhelmed this position. Now we have Lomborg pioneering a 3rd generation denial argument. He says global warming is happening, human activities are at least in part responsible, but that the threat of global warming is over-rated, and might even be good for us.