3. The power of the ocean

The ocean is a promising tool for carbon dioxide removal (CDR). It covers over 70% of the surface area of the planet, holds about 50 times more carbon than the atmosphere, and can store carbon for millennia at its deepest depths.
The ocean removes carbon dioxide from the atmosphere through two main ways:
- A natural chemical adjustment system: where the seawater absorbs carbon dioxide from the atmosphere, and
- By photosynthesis of organisms, like seaweed, to remove carbon.
What’s clear: Ocean CDR innovations are in the early stages of research and development, with most innovations occurring in a laboratory setting and some companies conducting early field trials. These efforts are important, but in order to move from the lab to deployment, widespread field tests are necessary to understand and validate the effectiveness in a real ocean environment.
Plug in: Check out our latest Tech 101, entitled "Ocean CDR Permitting and Regulations 101" by Policy Associate Jasmine Yu.
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