These engines use gasoline or diesel, and both fuels are full of chains of carbon atoms known as octane.

NPR: Has the Move to Make Cars Greener Stalled?

As the ages passed, the pressure of layers above and heat from inside the earth broke down and reassembled these simple plants and animals into chains of carbon atoms bristling with hydrogen.

FORBES: The Promise And Pitfalls Of Canada's Oil Sands

Despite these complications, carbon emissions created in supply chains are more straightforward than those generated elsewhere.

FORBES: Magazine Article

As well as playing an important role in food chains, phytoplankton also absorb carbon dioxide from the atmosphere.

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