Time Magazine: You can’t see climate change in action, much to the disappointment of photographers and magazine art directors. Warming is a function of time, and we see it only as time passes. Years go by, we add more carbon dioxide to the atmosphere, temperatures rise, glaciers retreat and deserts expand. One of the essential facts about climate science is that unlike, say, weather forecasting, the further ahead we look into the future, the more confident we can be of our predictions. So we know that …