That's a very good question, for which I thank you. The good news is that the International Court of Justice has also recently issued an advisory opinion on states' obligations for climate change. The long and the short, without spitting the whole opinion out to you, is that, yes, states do have an obligation commensurate with how much greenhouse gas they produce and their abilities to deal with the situation. This case was initiated by, I believe, some South Pacific states—perhaps Tuvalu, Micronesia and so on—because these states are at particular risk of the impact of climate change. This means not only the impact on the production of internally displaced and refugee populations, but also on the destruction of their own states.
