For four years, the world hit repeatedly at the snooze button. But every time you do that, it means a greater hurry when you do eventually act. You might afford the first snooze if you get a little quicker. Perhaps by the second one, the morning routine becomes a frantic rush. By the third, you’ll miss breakfast and go hungry. At some point, you’re late altogether, regardless of how quickly you move.
It seems that we’ve reached that point. Our estimates this year suggest that the global economy will need to reduce its carbon intensity (carbon emission per unit of GDP) at a rate it has never achieved before since records began in mid-20th century. This rate is needed to achieve the atmospheric concentration levels scientist say is required to limit global warming to 2oC. We now need to achieve that not just for one year, but for at least 39 years until 2050.