FOREST fires rage out of control despite water-bombing by helicopters. A sweltering heatwave grips the outback. Is this Australia? No, it’s Scotland enjoying its driest spring on record. The war might have come and gone, and we might be having an election next week, but all Scotland can talk about is the odd weather. Welcome to global warming.Or is it? I remain doggedly unconvinced. Certainly, the past decade has seen shorter winters in Scotland. But that only proves the climate is highly variable. Certainly, we are seeing a global bounce in temperature since the mini cold spasm that gripped the...