Muslim warfare in the Middle East has improved the air quality

According to a report on the BBC website, political disturbance and armed conflict in the Middle East since 2010 have had the perverse consequence of making the air cleaner.

Researchers say that in countries like Syria and Iraq, levels of air pollutants have fallen dramatically.

The amount of nitrogen dioxide in the air over Damascus has fallen by up to 50% since start of the civil war.

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