[s01e01] How the Blue Ridge Mountains (Almost) Lost Their Blue

Прем'єра: 24 вересня 2020
Тривалість: 8 хв
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There are a LOT of trees in the Blue Ridge Mountains, and they’re responsible for that dreamy blue haze on the horizon. Trees produce fine mists of volatile organic compounds (VOCs), which scatter blue light waves. But these compounds are also a key ingredient in ground level ozone, and in the mid-90s the area had serious air quality issues. Not only was it dangerous to breathe, the hazy blue was disappearing from the horizon.



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