““The reality is that the uncertainty involved means we do not know with precision whether we can achieve either of those goals; nor do we know for certain what the consequences will be if we do not. Regardless, most people put little faith in projections that far out, which is understandable. Scientists have been wrong plenty of times before. What people want to know is not exactly what will happen to the Earth eighty years from now but what will happen to their house, their job, and their community this year. Telling people that they might possibly save the Earth from distant and uncertain harm is not a great way to convince them to support a particular policy.””