In the world economy with interdependent markets for fossil fuel and deposits, some coalition of countries fights climate change by purchasing and preserving fossil fuel deposits, which would be exploited otherwise. If the coalition’s policy parameters are the demand and supply of deposits...

This paper analyzes the formation of self-enforcing climate agreements, or stable climate coalitions, when all countries have the option to fight climate change by purchasing (the right to extract) fossil-energy deposits. First, we consider the stand-alone deposit purchase policy and then...