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Adam Walton dives into the world of seaweed. With over 250 large species growing in UK waters it’s actually a really important part of the marine ecosystem. And it’s important in many other ways too… for centuries it’s been used as food, animal fodder and fertiliser. In recent years it’s has been side-lined as slimy, smelly and generally uncool but now, with the seaweed industry growing at nearly six percent a year, seaweed is making a comeback. In this week's Science Café we explore the fascinating qualities of seaweed – from its carbon neutralising abilities to its culinary status as a superfood and delicacy.