Each of us can make a difference if we step up and try our best / Becoming Planet Citizens
File:Chlorophyll in the oceans and vegetation on land world map 2003 NASA-Goddard.jpg
Chlorophyll in the oceans and vegetation on land throughout the world. Low levels of chlorophyll in the ocean are purple and blue and progressively levels are indicated by green, yellow, and red. Areas of land with the densest vegetation are blue-green...
Prochlorococcus is a phytoplankton, a tiny plant-like bacteria that is less than a micron wide and exists at the very bottom of the ocean’s food chain. Lay 100 of them end to end and they would be as wide as a human hair...
"A single kind of blue-green algae in the ocean produces the oxygen in one of every five breaths we take."
- ~ from "The World Is Blue: How Our Fate and the Ocean’s Are One" by Sylvia Earle / National Geographic
"The Tiny Little Ones - Plankton"
- "Ecosystems of the Sea"
Nearly all marine plants are single celled, photosynthetic plankton-algae
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