It has been revealed that a chilly Arctic summer has attributed to form a million more square miles of ocean covered with ice in comparison to the same time last year. The increase was reported to be 60% than last year. BBC has reported previously that global warming would leave the Arctic ice-free in summer by 2013.

It has been days before the beginning of annual autumn re-freeze that a huge unbroken ice sheet has formed. It stretches from the Canadian islands to Russia's northern shores.

The concerns, raised after the revelations of The Mail on Sunday's, has led the UN's climate change body to organize a crisis meeting. Fifth Assessment Report of the UN Intergovernmental Panel on Climate Change was due to publish in October. It is actually a three-volume study that is issued every six or seven years.

A pre-summit in Stockholm will be held later this month. It has been showed by leaked documents that more than 1,500 changes to the report's summary for policymakers have been demanded by governments which support and finance the IPCC.

Professor Anastasios Tsonis said, "We are already in a cooling trend, which I think will continue for the next 15 years at least. There is no doubt the warming of the 1980s and 1990s has stopped".

He is a professor at the University of Wisconsin and he was the first to investigate the ocean cycles.