Everything you say is true, but what I'm saying is that there is little sign of a change in attitudes on the horizon, and we can't wait for another century before we get our act together in terms of the green approach. In many regards we are going backwards. Subsidies for green energy cut, fracking encouraged, cars seem to be getting bigger and bigger, flights as cheap as chips, the US and China showing little inclination to curb energy consumption, India waiting in the wings, no lack of ultra-cheap oil and gas. We'd rather give massive handouts to landowners for ugly turbines that don't work half the time than help people to insulate their homes and replace inefficient boilers. We carry on building huge buildings that simply can't operate without air conditioning (don't remember much of that in the Sixties). Lamenting what we don't do enough of now won't save the planet. If I believed in God I'd suppose he'd be up there laughing his head off at us now for being so slow to invest in the low-carbon source of energy that will last us for millennia. Nuclear.