If scaled, urine from last year’s London Marathon could have fertilised enough wheat for 3,000 loaves of bread.

Beer prices might soon rise as climate change threatens barley crops, but an unexpected savior is emerging from rice paddies.

But 2025 sees a pioneering addition: the urine collected from nine PEEQUAL urinals at the marathon’s start line will be processed by Bristol-based startup NPK Recovery to be converted to fertiliser ...