A median of 54% agree with the statement “Rich countries, such as the U.S., Japan and Germany, should do more than developing countries because they have produced most of the world’s greenhouse gas emissions so far.” A median of just 50"% think “developing countries should do just as much as rich countries because they will produce most of the world’s greenhouse gas emissions in the future.” Notably, the U.S. is among a small group of countries in which half or more believe developing countries should do just as much – half of Americans hold this view, while only four-in-ten want rich countries to shoulder more of the costs.