EPISODEradio4
Material World
19/07/2007
Sooty grime on ancient buildings hold a detailed record of the smoke and pollutants our ancestors put into the air. Quentin Cooper peers into the smog of London's past.
Categories
Science & Technology
Sooty grime on ancient buildings hold a detailed record of the smoke and pollutants our ancestors put into the air. Quentin Cooper peers into the smog of London's past.