The Trust said that man-made climate change was one area where too much weight had been given to unqualified critics.
In April the BBC was accused of misleading viewers about climate change and creating ‘false balance’ by allowing unqualified sceptics to have too much air-time.
In a damning parliamentary report, the corporation was criticised for distorting the debate, with Radio 4’s Today and World at One programmes coming in for particular criticism.
The BBC’s determination to give a balanced view has seen it pit scientists arguing for climate change against far less qualified opponents such as Lord Lawson who heads a campaign group lobbying against the government’s climate change policies.
Andrew Montford, who runs the Bishop Hill climate sceptic blog, former children’s television presenter Johnny Ball and Bob Carter, a retired Australian geologist, are among the other climate sceptics that have appeared on the BBC.
The report highlighted World at One edition in September of a landmark UN Intergovernmental Panel on Climate Change (IPCC) research project which found concluded with 95 per cent certainty that the climate is changing and that human activity is the main cause.
The programme’s producers tried more than a dozen qualified UK scientists to give an opposing view but could not find one willing to do so – so they went to Mr Carter in Australia.
Pitted against Energy Secretary Ed Davey, Mr Carter described the findings of the most authoritative report ever undertaken into the science of climate change – put together by hundreds of scientists around the world – as “hocus-pocus science”.