There is certainly enough doubt for the BBC Trust to announce an investigation.Starting this spring,the trust will be carrying out an impartiality test.
One programme that may have triggered the move was David Attenborough's How Many People Can Live on Planet Earth? which coincided with the Copenhagen climate meeting and was criticised as being one sided.
Richard Tait, BBC Trustee and Chair of the Trust's Editorial Standards Committee (ESC), said:
Science is an area of great importance to licence fee payers, which provokes strong reaction and covers some of the most sensitive editorial issues the BBC faces. Heated debate in recent years around topics like climate change, GM crops and the MMR vaccine reflects this, and BBC reporting has to steer a course through these controversial issues while remaining impartial.
The trust will report in 2011