COP26: Idris Elba joins activist Vanessa Nakate in call for food security

Idris Elba has used an appearance at a COP26 news conference in Glasgow to warn that climate change is hitting the world's food supplies.

The actor joined the Ugandan activist Vanessa Nakate on a panel and acknowledged that, while he might not be an expert, he wanted to use the platform he'd been given – and his "big mouth".