With just four percent of the world’s population, the United States is responsible for almost thirty percent of aggregate emissions. The countries of the European Union, with about seven percent of the globe’s population, have produced about twenty-two percent of aggregate emissions. For China, home to roughly eighteen percent of the globe’s population, the figure is thirteen percent. India, which is expected soon to overtake China as the world’s most populous nation, is responsible for about three percent. All the nations of Africa and all the nations of South America put together are
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