If the topic of conversation is climate policy, conservatives should be winning. They will need to show endless patience in the face of ever more bizarre hyperbole — a Reaganesque ‘There you go again’ is probably about right. And they will need to confidently describe an affirmative policy agenda, preferably emphasizing research and development that might identify new technologies so cheap and clean that developing countries will want to use them along with tools for adapting to whatever climate change does bring,