Lungs of the Earth… Wait! Does our planet have lungs? Meghan Environment, Oceans, YouTube Channel May 21, 2021August 21, 2021Amazon Rainforest, lungs of the earth, Oceans, oxygen production, phytoplankton photosynthesis, plant respiration, rainforest Have you ever heard the expression “the lungs of the earth”? Have you wondered, does our Earth really have lungs? Where does our oxygen come from?