Oh, starboard your helm!

This time it could be the big one. Fire on the Amazon, fire in Siberia, a dome of heat above the American west and wildfire surging below – too often we close our minds to events that seem far away. But something may be stirring much closer to home. Scottish winters are warmer than they should be for this far north. Orkney has the same latitude as Leningrad or southern Greenland – yet its winters are very different. The reason is the warm water from the Gulf of Mexico – the Gulf Stream. It brings Orkney’s