U.S. Climate Envoy John Kerry told the World Economic Forum in Davos, Switzerland, on Wednesday that the fight against climate change will only succeed if people around the world take on a wartime footing and accelerate action to curb carbon emissions. When asked if the world will meet the shared goal of limiting the global temperature increase to 1.5 Celsius by 2032, he said that target won’t be met given the current amount of effort being made. "We can’t hit 1.5," he said. "We’re not on track to do it now, and it’s not clear, absolutely clear that we will...