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How Much Is a Gigaton of CO2?

gigatonne is 1,000,000,000 or 1 billion tons. This is roughly the mass of all land mammals (other than humans) in the world. It’s also roughly twice the mass of all of the people in the world.

A gigatonne is also equivalent to

  • 5.5 million blue whales
  • 3 million Boeing 747 jets
  • 2 million International Space Stations
  • 20,000 RMS Titanic ships


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Tina Baumgartner Tina leads OpenAir's CDReality mission, and brings to this effort years of career experience in business development, writing and communications in the tech sector. She is based in the Bay Area.