He hasn’t backtracked. Labour are still going to invest billions in green tech, green research and green jobs.

They’re still going to create a new state-owned green energy company.

They’re still going to phase out diesel cars.

They’re still going to change planning laws so that we can build more onshore wind, more quickly (as well as other green infrastructure, like trams and rail).

They’re still going to ban new licences for North Sea Oil extraction.

And Ulez in London is going ahead as planned without delay.

He’s fighting the backlash following his criticism of ULEZ a couple of weeks ago

They have said consistently that they cannot undo the amount of damage done to our country in a short time. This will take many parliaments to fix. As such you have to prioritise your biggest gains.

Labour doesn’t want to get into power. If they do, then they will have to fix all the shit. But if they continue back-benching, they can still get comfy wages, invites to conferences, etc.