Gina Miller is calling for ecocide to be criminalised as she warned that the UK is far behind the European Union in terms of environmental protection.

The anti-Brexit campaigner has backed policy proposals that would see major polluters jailed for up to 10 years or face a fine of up to £3.85 million.

Ms Miller warned that UK progress on environmental policies more widely has been stifled by Brexit.

This, compounded by a lack of action from Britain’s mainstream parties, means it is lagging behind its European counterparts, she said.