Publicado por: pongpesca | 2020/05/22

Tiny plankton drive processes in the ocean that capture twice as much carbon as scientists thought

“The ocean plays a major role in the global carbon cycle. The driving force comes from tiny plankton that produce organic carbon through photosynthesis, like plants on land. When plankton die or are consumed, a set of processes known as the biological carbon pump carries sinking particles of carbon from the surface to the deep ocean in a process known as marine snowfall. Naturalist and writer Rachel Carson called it the “most stupendous snowfall on Earth.” Some of this carbon is consumed by sea life, and a portion is chemically broken down. Much of it is carried to deep waters, where it can remain for hundreds to thousands of years. If the deep oceans didn’t store so much carbon, the Earth would be even warmer than it is today.”

 

Ver artigo completo aqui.

Fonte: The Conversation, 21 de Maio de 2020.


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