Analyzing the Climate and Productivity Effects of a Shrinking Population

A smaller human population would emit less carbon, other things equal, but how large is the effect?

Although the two population paths differ by billions of people in 2200, we find that the implied temperatures would differ by less than one tenth of a degree C—far too small to i

Here we test the widely-shared view that an important benefit of the ongoing, global decline in fertility will be reductions in long-run temperatures.