THINK Storm Hector is bad? Spare a thought for the weather two million years ago – when almost all of Scotland was under a mammoth ice sheet.

“Breakthrough” research has found the frozen cover, which also blanketed Ireland and Northern England and stretched all the way to Scandinavia, lasted much longer than previously understood.

Teams from Aberdeen and Manchester universities checked sediment cores and seismic data from beneath the North Sea.

According to study leader Dr Brice Rea, of Aberdeen University, the results “completely change” our understanding of the distant past and the conditions that have shaped our world today.

The ice sheets were so extensive that they reached down 250m into what was then a much narrower North Sea, and generated icebergs almost 300m high.

Until now, it was thought that the massive glaciation first happened 1.1m years ago.

However, the research, which also involved Sheffield and Queen’s University Belfast and is published in the Science Advances journal, shows it took place 2.5m years into the past,

It said a British Isles ice sheet met its Scandivian counterpart over the waterway 1.9m years ago.

Dr Rea commented: “Coalescence of the British ice sheet and ice from Scandinavia, which we show occurred at about 1.9m years ago, wasn’t thought to have happened until about 780,000 years ago.

“Our findings completely change our understanding of how far back in time large ice sheets covered the British Isles and merged with ice from Scandinavia.”