Taking carbon farming out to sea

The untapped potential of seaweed

An image of seaweed in the ocean.
An image of seaweed in the ocean.
Scientists are uncovering the important role that seaweed plays in the global carbon cycle. (Photo: Flickr).

Seaweed’s carbon storage potential

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Natural seaweed carbon sequestration processes can be harnessed by specially designed farms. (Image: Harvard University)

The power of shifting diets

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Seaweed farms can expand our food production into the ocean to take pressure off the land. (Photo: Wikimedia Commons)

Clean energy, clean seas

Seaweed is a very promising feedstock for biofuel production. It contains a lot of high-energy carbohydrates and is relatively easy to break down, making it an ideal candidate. Seaweed grows faster and is more space efficient than competing terrestrial biofuel feedstocks like soy and corn. Seaweed farms can be located offshore, so it’s possible to scale up seaweed growth for biofuel production without competing with the agriculture or forestry sectors.

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Natural kelp forests on Tasmania’s southern coastline. (Photo: Matt Doggett)

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