"[...] advocates of [fossil fuel] divestment [...] want to create the sense that a business or a country is a pariah. If you believe that global warming is a mortal threat to all humanity, and that the world’s attempts to ward it off are inadequate, then it makes sense to do more or less everything you can to bring about change. Campaigners use divestment not as a tool of corporate finance, but as a facet of free speech — part of a broader push, involving boycotts, protests, lobbying and public advocacy, to sway opinion and influence regulation. Good luck to them: they have every right to make their case."