Aquaculture, or fish farming, is the fastest growing form of food production in the world. Most fish farming is done in pens out at sea, but that comes with significant environmental problems. High-tech, land-based fish farms are still a niche part of the industry, but that may well change, as scrutiny about the way our seafood is raised intensifies. #fishfarming #aquaculture #foodproduction See if you get the FT for free as a student (http://ft.com/schoolsarefree) or start a £1 trial: https://subs.ft.com/spa3_trial?segmentId=3d4ba81b-96bb-cef0-9ece-29efd6ef2132. ► To learn more, visit our website - https://channels.ft.com/en/foodrevolution/ ► Watch more videos from this series here -    • FT Food Revolution   ► Check out our Community tab for more stories on the economy. ► Listen to our podcasts: https://www.ft.com/podcasts ► Follow us on Instagram: https://www.instagram.com/financialtimes'