If I were a climate scientist, the despair I would feel about the future of the planet would make it difficult to live. It’s bad enough reading about climate science. And the scientists here who are making claims that “we can do this and save ourselves!” are stating opinions that really sound pretty distant from where their own science leads them. If “we can do this!” includes 100 million refugees in Bangladesh as a starting point, we aren’t really doing well. And as for comparisons between the sudden shift in gay marriage and a possible sudden shift in doing something about climate, they are cheap, easy, and disconnected from reality since a) fighting climate change means taking on huge corporations and gay marriage does not and b) gay marriage is a freedom issue and that has a particular appeal to Americans while climate change does not.