Vi må træde et skridt tilbage og erkende, at verdens befolkning i løbet af en menneskealder er firdoblet, og at vores brug af fossile brændstoffer, vores energiforbrug, er steget voldsomt.
We have to take a step back; we have to recognise that during the course of one lifetime, the human population has quadrupled and our use of fossil fuels, our energy consumption, has grown enormously.