That doesn't really contradict adrianN's point in any way. If you integrate methane's heat retention over now to 100 years from now it still beats carbon dioxi

That doesn't really contradict adrianN's point in any way. If you integrate methane's heat retention over now to 100 years from now it still beats carbon dioxide. That doesn't mean that if you integrate from 50 years from now until 100 years from now it would still win. Much less so if you look at a geological time period in the future.