The Climategate row, which was first revealed by the Daily Mail in November, was triggered when a hacker stole hundreds of emails sent from East Anglia's Climatic Research Unit.
They revealed scientists plotting how to avoid responding to Freedom of Information requests from climate change sceptics.
Some even appeared to show the researchers discussing how to manipulate raw data from tree rings about historical temperatures.
In one, Professor Jones talks about using a 'trick' to massage figures and 'hide the decline'.[...]
The principle that scientists should be willing to expose their results to independent testing and replication by others, which requires the open exchange of data, procedures and materials, is vital.'
Last month, the Information Commissioner ruled the CRU had broken Freedom of Information rules by refusing to hand over raw data.
But yesterday Professor Jones - in his first public appearance since the scandal broke - denied manipulating the figures.
Looking pale and clasping his shaking hands in front of him, he told MPs: 'I have obviously written some pretty awful emails.'
He admitted withholding data about global temperatures but said the information was publicly available from American websites.
And he claimed it was not 'standard practice' to release data and computer models so other scientists could check and challenge research.Read more: http://www.dailymail.co.uk/news/article-1254660/Climategate-professor-Phil-Jones-admits-sending-pretty-awful-emails.html#ixzz0jh8x3trC