Algae Quote by Lewis Thomas

Before the discovery of these [underwater] vents, all life on Earth, the key to life on Earth, was believed to be the sun and…

— Mike deGruy

“Even now, the photosynthetic bacteria in the oceans produce the oxygen in half the breaths you take, and they lock away an equal amount…

— Ed Yong

“These early, single-celled organisms unwittingly transformed Earth’s carbon dioxide-rich atmosphere into one with sufficient oxygen to allow aerobic organisms to emerge and dominate the…

— Neil deGrasse Tyson

“We know a great deal more than the Greeks did about the forces of life. But with all our knowledge, no one fully comprehends…

— Richard M. Ketchum

“600 million years ago, the monopolizing grip of the algae was broken and an enormous proliferation of new lifeforms emerged, an event called the…

— Carl Sagan

We have an atmosphere that is roughly 21% oxygen. The rest of it is largely nitrogen. There's just enough carbon dioxide (CO2) to drive…

— Sylvia Earle

The oxygen cycle, the nitrogen cycle, the carbon cycle, the water cycle - all of these are linked to the existence of life in…

— Sylvia Earle

Originally, the atoms of carbon from which we're made were floating in the air, part of a carbon dioxide molecule. The only way to…

— Michael Pollan

Four elements, Hydrogen, carbon, oxygen and nitrogen, also provide an example of the astonishing togetherness of our universe. They make up the "organic" molecules…

— George Wald

“When the Earth was only about a third of its eventual size, it was probably already beginning to form an atmosphere, mostly of carbon…

— Bill Bryson

I tell my students, with a feeling of pride that I hope they will share, that the carbon, nitrogen, and oxygen that make up…

— George Wald

“Oxygen flooded into the atmosphere as a pollutant, even a poison, until natural selection shaped living things to thrive on the stuff and, indeed,…

— Richard Dawkins