An evening view looking across the River Mersey of Liverpool Waterfront, Liverpool, Merseyside, England, United Kingdom, Europe

A winter view of the flowing water and colourful rocks of the River Polloch in the Ardnamurchan Peninsula, Scottish Highlands, Scotland, United Kingdom, Europe

Castle Tioram on the coastal island Eilean Tioram where River Shiel and Loch Moidart meet, at low tide on a sunny winter morning, Highlands, Scotland, United Kingdom, Europe

Castle Tioram on the coastal island Eilean Tioram where River Shiel and Loch Moidart meet, at low tide on a sunny winter morning, Highlands, Scotland, United Kingdom, Europe

Sign at the Watson River melted from the Greenland Ice Sheet near Kangerlussuaq, Western Greenland, Polar Regions

Castle Tioram on the coastal island Eilean Tioram where River Shiel and Loch Moidart meet, at low tide on a sunny winter morning, Highlands, Scotland, United Kingdom, Europe