Lab-grown meats might have similar effects. It could lower water use by 82-96 percent, reduce greenhouse gas emissions by 78-96 percent and cut land use by 99 percent.
Algae, the only plant on the list so far, provides lots of nutrients. Microalgae is full of proteins, carbohydrates and omega-3 fatty acids. It could also limit land use. Supplements and food products made with microalgae are already on the market.