Energy is a key element of sustainable development, and energy resources at their current modes and rates of depletion contribute to an increasingly unsustainable world energy system. Within the global energy system, there are examples such as Denmark, where the path to renewable energy has been pursued comprehensively and steadily. This has resulted in the creation of a world-class wind turbine industry, and in a large proportion of the country's electricity being produced sustainably - form the wind. New Zealand has also been part of the global unsustainable energy trend, however, in a...