MPs investigating the climate change row at the UK’s University of East Anglia (UEA) have demanded greater transparency from climate scientists.
The Commons Science and Technology Committee criticised UEA authorities for failing to respond to requests for data from climate change sceptics.
But it found no evidence Professor Phil Jones, whose e-mails were hacked and published online, had manipulated data.
It said his reputation, and that of his climate research unit, remained intact.
The e-mails were hacked from the university’s computer network and were published on the internet just before the Copenhagen climate conference in December 2009.
Climate sceptics claimed that the e-mails provided evidence that scientists at the university’s Climatic Research Unit (CRU) were hiding data and falsifying scientific evidence on global warming.
The committee said much of the data that critics claimed Prof Jones had hidden, was in fact already publicly available.