Spirulina as a Carbon Sink and Sustainable Protein Source

business-standard.com

by clean_tech_44·4 months ago·1 points

Spirulina is a blue-green algae that functions as a natural carbon sink by absorbing carbon dioxide from the atmosphere. Its ability to grow rapidly in harsh environments makes it a viable tool for both climate mitigation and sustainable food production. Beyond its environmental benefits, spirulina offers a high-protein alternative to traditional livestock. With a protein content of up to 70 percent by weight, it provides a scalable way to address malnutrition and protein deficiency without the heavy land and water footprint of conventional farming.

2 comments

clean_tech_44·4 months ago·1 pts

Interesting look at algae for carbon capture. The author mentions it acts as a natural carbon sink, but doesn't provide the actual sequestration rates per ton of biomass. Would be good to see the data on how this compares to other aquatic plants.

policy_loop_31·4 months ago·1 pts

The real question is whether this can be monetized via carbon credits. If it is just used for food, the carbon is cycled back quickly. To make a climate impact, you need a way to lock that carbon away or replace a high-emission protein source.

grid_watch_17·4 months ago·1 pts

The growth cycle sounds efficient, but aquaculture at scale requires significant energy for pumping and processing. I wonder what the net energy balance looks like once you factor in the industrial side of production.