Many Climate Policies Struggle to Cut Emissions, Study Finds

First, the good news: 1,500 climate policies aimed at reducing emissions of planet-warming greenhouse gases have been implemented across dozens of countries over the past two decades.The more troubling news: Only around 4 percent may have substantially reduced emissions, according to a new study.“We’re finding good and bad news together,” said Nicolas Koch, a climate economist at the Potsdam Institute for Climate…