nairobi has never been this cold

everyone keeps saying. And it's true. If you'd ever told me I would come home and need long underwear with two layers on top for daytime, I'd have laughed. Last night I wore a hooded sweatshirt over my pyjamas to sleep in and still needed two duvets.

Europe is boiling, says my father sardonically, the Middle East is burning, and here we go from drought to floods to freezing. And the Americans still say there's no such thing as global warming.