"[J]ust under an eighth [of 3 million premature deaths caused by PM2.5] were associated with pollutants released in a part of the world different from that in which the death occurred, thanks to transport of such particles from place to place by the wind. Almost twice as many (22% of the total) were a consequence of goods and services that were produced in one region (often poor) and then exported for consumption in another (often rich, and with more finicky environmental standards for its own manufacturers)."
