Smithsonian Magazine
  • A section opener about the Phenomenon of PLAY
  • A section opener all about "Identity"
  • Up until now, scientists thought that before the Industrial Revolution the atmosphere was untainted by human-made pollutants. Studies of the bubbles trapped in Greenland's ice show that Ancient Romans began emitting greenhouse gases at least 2,000 years ago.
Description
Illustration for Smithsonian magazine
Fields
Illustration
Date
2013