The MO's database is a main source of analysis for the UN's climate change science body, the Intergovernmental Panel on Climate Change (IPCC), which joins talks next week at the long-awaited Copenhagen summit.
An MO spokesman denied it would spend up to three years re-examining the climate change data, and said it had already planned to publish the material long before the "Climategate" controversy broke.
But the spokesman admitted the e-mail row had made the whole exercise more urgent.
