An all-out nuclear war threatens to destroy all nations, so all nations have an equal stake in preventing it. Global warming, in contrast, will probably have different impacts on different nations. Some countries, most notably Russia, might actually benefit from it. Because Russia has relatively few coastline assets, it is far less worried than China or Kiribati about rising sea levels. And whereas higher temperatures are likely to turn Chad into a desert, they might simultaneously turn Siberia into the breadbasket of the world.
