The problem with waiting is that there are potential tipping points where the Earth itself begins releasing carbon. It's entirely possible (perhaps even likely;

The problem with waiting is that there are potential tipping points where the Earth itself begins releasing carbon. It's entirely possible (perhaps even likely; my impression is that the scientists don't really know, but are terrified by the possibilites already) that by the time we see what you consider real consequences, the process will have runaway far beyond humanity's ability to control.