Traditional cod and chips used in Britain's favourite takeaway could be replaced with hake as experts claim it is more sustainable. Global warming is affecting the number of cod that can be caught, so fishermen and chip shops alike are hoping fish-lovers will make the transition towards the less-traditional battered delicacy. Hake is starting to boom in popularity, after going out of favour in the 1990s due to overfishing. In 2015, Cornish hake became MSC-certified, and now 2,000 tonnes of hake are trawled every year. The UK fishing industry loves it as there is no risk of overfishing, so should be caught sustainably for years to come.