CHANGE
Cooking the Planet A rapidly changing climate drives not just warmer but wilder weather. Past weather patterns are no longer a good guide to future risk. As new data has come to hand, and the scientific models found to match observed changes, projections of future climate risk have tended to become more dire, not less.
On present trends, we will pump enough carbon pollution into the air to push the world’s temperature up by about 4–6°C above the pre-industrial average by 2100. And if the promises already made are not kept, we could hit the 4°C-mark decades earlier.32