Christian Science Monito: Political and diplomatic advances on global climate change are proceeding at a snail’s pace. Or to use a better metaphor, like the drip-drip-drip of glaciers melting in the heat of a warming planet. Which is to say, slowly – very slowly. That’s true in Washington, where lawmakers are trying to craft a climate bill. And it’s also true abroad, where diplomats are preparing for a 192-nation conference in Copenhagen next month. As the Associated Press reports: “At U.N. …