Tens of thousands of negotiators, activists, and corporate execs have descended upon Dubai to wrangle over the future of fossil fuels. Namely, should they even have a future? Can governments broker a deal to phase out the oil, coal, and gas causing climate change? Countries have already suffered deep losses as a result of the fires, floods, and other disasters intensifying with climate change. They want the biggest, heaviest-polluting nations to do something about it. And they’ll be making…