"I think certainly we're going to go through 1.5 degrees Celsius. I think the best estimate is probably somewhere around 2032 or thereabouts, the early 2030s. And at the current rate we're going, we'll go through 2 degrees Celsius in the mid to late 2050s. Now there's certainly time to slow that rate of increase down, and we could easily push the 2 degrees Celsius threshold out to 2070 or 2080. And with really strong efforts, we might be able to hold the overall global mean surface temperature increase to something maybe close to that. Although, whether it goes past it and then comes back a little bit to it, remains to be seen. So this relates to current policies and what nations are committed to doing.

Certainly, if everyone's current policies and what they're committed to doing were in place, we would be in a much better situation than we ...