Planet of the Humans review – contrarian eco-doc from the Michael Moore stable

Jeff Gibbs' film, produced by Michael Moore, takes a pop at green, liberal A-listers such as Al Gore - but doesn't dare criticise Greta Thunberg

Recently, petrolhead pundit Jeremy Clarkson was thought to have disgraced himself by pointing out that the hi-tech sea yacht used by Greta Thunberg for her transatlantic crossing, for all its solar panels and underwater turbines, had an old-fashioned diesel engine aboard for emergencies. I thought about Clarkson's jibe while watching this refreshingly contrarian eco-documentary from environmentalist Jeff Gibbs, which has been uploaded for free online viewing by its executive producer, Michael Moore.

Gibbs has a cheeky habit of going backstage at music festivals that solemnly declare themselves to be using 100% renewable energy, only to find that the fancy array of solar panels behind the tent is enough to power a single bass guitar. The rest of the energy is provided by just plugging into the shameful old electricity grid, provided by fossil fuels. He sees it as symptomatic of the mainstream environmental movement, running on delusional piety.