Yale Environment 360: The U.S., Canada, and the European Union agreed at yesterday's UN climate summit to cut global deforestation in half by the end of the decade and eliminate net forest losses entirely by 2030, marking the first time such a deadline has been set. If the goal is met, it will cut carbon emissions by an amount equal to taking 1 billion vehicles every car on the planet off the road, the UN said. Notably missing from the list of committed countries was Brazil, which has been a key player in Amazon deforestation,...