We review the optimal pattern of carbon emission abatements across countries in a simple multi-country world. We model explicitly the fact that the atmosphere is a public good. Within this framework we establish conditions for it to be necessary for optimality that the marginal cost of abatement...

I provide a rigorous framework for accounting for corporate greenhouse gas emissions, based on the Greenhouse Gas Protocol. I show that only Scope 1 emissions are of interest from a national policy perspective: that emissions in Scopes 2 and 3 are duplicative, and that downstream Scope 3...