Re: ‘The tide is turning – people are waking up' (The weekend Sun, February 24).

To support R Smith's letter here are some interesting facts. Data from the Danish Meterological Institute shows in the last few years the Arctic ice has become significantly thicker. Back in 2008 much of the ice was only one metre thick. Today that has risen to two metres, and in some places four metres.

The Danish Meterological Institute data also shows the Greenland ice sheet, which we are told is melting at horrendous speed, is actually growing this year at a record rate, to a size way above its average for the last 26 years. And the most authoritative record of Northern Hemisphere snow cover shows this year's ranking as one of the six highest since 1967.

A Bourne, Bethlehem.