Human Wrongs Watch
By William Mebane*
10 December 2019 (Wall Street International)* — As William Nordhaus illustrated in his Nobel award address in December last year, the free-rider problem is particularly severe for climate change. Those who do nothing ride free, while those who undertake costly reductions pay dearly. If an important player does not go along, the others could establish a climate club with penalties in the form of tariffs for the free rider.

