A High Court judge has said that Al Gore’s Oscar winning documentary on climate change contains ‘nine scientific errors’ - but can be shown in schools if accompanied by information giving the other side of the argument.

Mr Justice Barton said there are elements of ‘alarmism and exaggeration’ throughout the film, used to support Gore’s arguments on global warming.

He added that the ‘apocalyptic vision’ displayed by the film is not an impartial analyses of climate change.

The case was brought to court after Kent school governor Stewart Dimmock attempted to ban the film from secondary schools.

It was laid down that teachers should point out controversial elements of the documentary, and without this guidance the government would be breaking the law.

The controversial sections include claims that global warming is ‘shutting down the ocean conveyor’ - the process which carries the Gulf Stream to western Europe.

This has been rejected by the Intergovernmental Panel on Climate Change (IPCC), who say that it shutting down entirely is unlikely.

The organisation did concede that it might slow down however.

Mr Gore also asserted that polar bears are drowning as they are forced to swim vast distances to find ice. The judge said there was no real evidence to support this claim, other than a study showing that four polar bears were found drowned after a storm.

The judge said the film was ‘powerful, dramatically presented and highly professionally produced’, but that its accuracy was measured by Gore’s ‘charismatic presence’.

He added that - aside from the errors - the arguments made in the documentary were well supported by journals and the IPCC.

The film has been sent to all secondary schools in the UK.