Many scientists are deeply knowledgable about the effects of climate change on biological systems. As a group, they have generated an immense wealth of accumulated knowledge that cuts across organisms, ecosystem types, and regions. Despite the major role scientists have played in generating knowledge about climate change outcomes, my sense is that few scientists have devoted serious consideration to why, given the accumulate evidenced, nothing is being done to mitigate climate change. They look at international agreements that seem powerless and ineffective and wonder: Is the …