The tiny creature that secretly powers the planet, Penny Chisholm

Oceanographer Penny Chisholm tells the story of a tiny ocean creature you ve probably never heard of: Prochlorococcus, the most abundant photosynthetic species on the planet. A marine microbe that has existed for millions of years, Prochlorococcus wasn t discovered until the mid1980s but its ancient genetic code may hold clues to how we can reduce our dependence on fossil fuels.