Here is the good news on the climate front: The Europeans have ratcheted down their emissions targets, the Chinese are getting serious about solar power and energy efficiency, and Washington is lumbering toward a carbon cap.
These are steps toward the long-held goal: cutting global warming pollution 80 percent by 2050. Such cuts would stabilize the thickness of the heat-trapping carbon dioxide blanket surrounding the planet at 450 parts per million (ppm) and, we’ve been told, ensure that the global average temperature increase would not exceed 2 degrees Celsius (3.6 degrees Fahrenheit) from 1990 levels.
The bad news? Turns out that 450 ppm is so 2005.… Seguir leyendo »