Cleaning up our waste is important, but we must also change the systems we use to provide humanity with food and energy. To restore fish populations, reduce the acidity of the ocean, and remove pollutants will require the ingenuity of many people testing out their solutions to see what works. Humans need food, fuel, and clean water. The goal of seasteading is to provide for those needs while also restoring the environment.
One of the 8 Great Moral Imperatives of Seasteading is to Live in Balance with Nature, and in order to do that, cities must stop functioning as parasites and start functioning as symbionts.