Moving or converting cities does seem like an incredible undertaking.  However, it also looks like making the world reign in its carbon emissions sufficiently has been tried and is not yet successful; maybe it&#x27;s actually impossible as opposed to just difficult.  At least changing the world to adapt to climate change doesn&#x27;t have the tragedy of the commons working against it, because when a local government works to prepare for whatever is going to happen, the benefit accrues locally to the people making the sacrifice.<p>I read several of javert&#x27;s posts, and I don&#x27;t get the impression of a troll.