Richard Branson wants to see more action taken to tackle the growing problem of food waste.

Writing in his blog he decries the amount of food he sees wasted in restaurants around the world – where portions sizes are too often out of control.

Food waste is “responsible for roughly eight per cent of global emissions” according to Project Drawdown. Richard also highlights a UN report that reveals a third of food is wasted globally every year.

“I’d love to see businesses working to be more efficient when it comes to food waste. Restaurants could serve half the portion sizes they currently do but have a clear sign on the tables saying if people are still hungry they can have a second helping – when we do this in our properties we find less than 10 per cent of people ask for more,” Richard said in his blog.