ENVIRONMENTAL groups Friends of the Earth (FoE) and Greenpeace UK will intervene in appeals challenging sentences given to climate protesters who blocked the M25.

Roger Hallam, Daniel Shaw, Louise Lancaster, Lucia Whittaker De Abreu and Cressida Gethin were jailed in July.

Mr Hallam, co-founder of Just Stop Oil, was sentenced to five years while the other four protesters received four-year sentences for disrupting traffic by climbing motorway gantries in November 2022.