Brazil, one of the world’s largest emitters of heat-trapping gases, on Monday ratified the Paris agreement to fight global warming, joining top polluters United States and China and bringing the deal closer to implementation. Brazil’s President Michel Temer signed the ratification in Brasilia following approval by both houses of Congress. U.S. and China had ratified the deal on September 3. With Brazil’s ratification, the Paris climate agreement comes closer to the requirements to enter into…