A subscription to Harvard Business Review would’ve spared President Trump his embarrassing “Pittsburgh, not Paris” punchline, delivered as he pulled the U.S. out of the Paris climate accord. Abandoning the treaty was predicated on preserving American jobs, but if he’d tuned into our HBR webinar, Delivering Economic Resilience in the New Energy Paradigm, he’d have been forewarned that Pittsburgh dismantles his argument. Instead of suffering from the Paris accord, Pittsburgh and its corporate partners stand to profit as pioneers of a clean and green energy future. As Bill Peduto, mayor of Pittsburgh, said after the announcement, the city has already done what the Paris agreement calls for. What Pittsburgh is doing has implications, not just for policy, but also for business strategy and the future of public-private collaboration.