Climate science does appear to be subject to uncertainties and climate change appears to be a problem we face in the medium to long term. But I remember the fuel protests. I lived in a remote Cotswold hamlet and I came close to running out of food as well as fuel. I remember the queues and the anxiety and how quickly the situation developed. I remember thinking that we were only ever a couple of meals from barbarism. Perhaps resource depletion is a greater threat than climate change.