Seaweed is nature’s underrated superhero, and it helps fighting climate change more effectively than many other methods. Although trees are the saviours of climate change on land, 70% of the earth’s surface is covered by the ocean.
Seaweeds are some of the fastest growing organisms on the planet. Species like kelp grow up to 30cm per day, and their towering canopies help shelter animals from the effects of ocean acidification through increasing the pH of the surrounding waters. Like trees, seaweeds photosynthesize – meaning they absorb energy from the sun and carbon dioxide from the atmosphere, then release oxygen back into their surroundings, offering a powerful and scalable carbon drawdown solution. They foster beautiful and diverse ecosystems, habitat, food, and oxygen to thousands of species like herring, sea otters, and sea lions – all of whom have crucial roles to play.
Farming and restoring seaweeds can create sustainable jobs that benefit indigenous and other coastal communities and offer a nutritious food source that can play a huge role in global food security. Seaweed can be further used to make low-carbon products such as organic fertilizers, methane-reducing animal feed, bioplastics, textiles, alternative fuel sources, and the list goes on (source).