The sustainable credentials of seaweed are hard to believe... Growing up to 30 times faster than land-based crops, it is by definition organic and zero input. We do not use any fertilizer, fresh water or pesticides. Furthermore, it absorbs excess nitrogen from the water, sequesters four times as much carbon dioxide as land-based agriculture and creates a habitat for marine life, boosting local fish stocks. Therefore our farm does more than just sustains the sea in which it grows, it leaves it healthier than before.