92% of the world's population live with dangerous levels of air pollution - but what does this really mean? This week, Rosie delves into the past, present, and future of air pollution and what it's doing to our lungs and our brains. In our SNPit, Ash explains how humans have driven the evolution of a sought-after Chinese herbal medicine. Listen now! 

To read more about air pollution, head to these links:

• Historic Smog Death Toll Rises
• WHO Finds 92% of the World’s Population Exposed to Unsafe Levels of Air Pollution
• Half of the World's Population Exposed to Increasing Air Pollution
• Air pollution Speeds Up Aging of the Lungs and Increases Chronic Lung Disease Risk
• The Health Effects of the 2019-20 Bushfires
• Damage Similar to Alzheimer's Has Been Found in Young Brains Exposed to Air Pollution
• Coronavirus: Lockdown’s Effect on Air Pollution Provides Rare Glimpse of Low-Carbon Future

And if you're intrigued by the evolution of the Fritillaria delavayi herb, here's the research behind it:

• Commercial Harvesting Has Driven the Evolution of Camouflage in an Alpine Plant

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Music:

AhDah Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/