Solar and renewables are being touted as the energy sources of the future, but will they provide enough power relative to the energy that must be invested in them? Engineer Graham Palmer argues there’s no easy solution to the fact that we’re running out of fossil fuels. Canadian philosopher Marshall McLuhan once quipped that the last thing a fish would notice is the water. You could almost draw a parallel to the essential role energy plays in modern society—cheap accessible energy is now so ubiquitous that we barely notice the importance of it to modern living, nor the astonishing wealth it has brought. Just one litre of petrol provides the equivalent of a week or more of pre-industrial human labour. Having achieved this miraculous transformation, it is not likely that societies will voluntarily turn back. According to Joseph Tainter’s thesis, societies grow more complex in order to solve new […]