It seems ever more certain that global temperatures will sail past limits set in the Paris Agreement. We examine what a world warmed by 3°C would—or will—look like. Our correspondent speaks with Sudan’s three most powerful men; will they act in concert or in conflict on the way to democracy? And why Liverpool has been booted from UNESCO’s world-heritage list. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer   See acast.com/privacy for privacy and opt-out information.