Chad, in central Africa, is the world’s most polluted country, while California has the worst air pollution in North America, according to an IQAir report.
Water scarcity is a growing challenge, but across India, communities are finding smart ways to conserve every drop. This map ...
India, the fifth most polluted country in the world, is home to 13 of the top 20 most polluted cities in the world, according to the latest report by IQAir.
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