Our research reveals that eating the wild-caught fish destined for salmon farms would allow nearly 4 million tonnes of fish to be left in the sea while providing an extra 6 million tonnes of seafood.

Anaerobic digestion (AD) – the process of producing “biogas” from organic matter like crops and wastes – has presented itself as the silver bullet to everything from producing green gas for heating and transport, to producing fertiliser for our crops. However, our research shows that, at best, AD is a sub-optimal sticking plaster solution, and at worst, it is sometimes actually perpetuating the problems it claims to solve.