Further reading
If you would like to learn more about energy systems we suggest the textbook “Energy Systems and Sustainability, Power for a Sustainable Future” by Everett, B., Boyle, G., Peake, S. and Ramage, J. (2012) (2nd edition, Oxford University Press).
If you are interested in transport then you might find these interesting: “Unsustainable Transport: City Transport in the New Century: The Transport Crisis” by D Banister (2005, New Edition, Routledge).