Modern textiles are environmentally problematic. Cotton needs gallons of water to produce, while polyester comes from crude oil. So could organic materials such as mushrooms and banana leaves hold the answer?

Manuela Saragosa speaks to Dr Richard Blackburn, chemistry professor at Leeds University, who has been studying the ecological impact of the garments industry for decades. Meanwhile the BBC's Elizabeth Hotson investigates innovative new fabrics preparing to hit the market, including MycoTEX, a material made from fungal mycelium, developed by Aniela Hoitink.

(Picture: Branch of ripe cotton; Credit: Gargonia/Getty Images)