Our #1 chart of 2017 allows users to find a country, and see by how much the life expectancy could increase if @WHO air quality standards were met. https://epic.uchicago.edu/news-events/news/top-10-charts-2017-0#chart … 1pic.twitter.com/ssMtlJWghu
2:45 PM - 10 Jan 2018
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