With protest groups, the aims tend to be more political, and less technical - the problem is not what should be done, but rather, how to force politicians to do

With protest groups, the aims tend to be more political, and less technical - the problem is not what should be done, but rather, how to force politicians to do it. With climate change, the pressing problem is that while almost everybody agrees on the broad strokes of what needs to change, we're prevaricating on the implementation. My feeling is that I wouldn't take the actual technical policy proposal stuff from the activist environmentalists too seriously - it's often not what they're interested in. What they are good at, and interested in, is forcing the problem of the coming catastrophe to the forefront of our imaginations and our conversations. Climate change is ultimately a problem of political will, not policy.