It is well recognized that alternative sources of energy are urgently required. Current reliance on
fossil fuels is unsustainable due to pollution and finite supplies. While much research is being
conducted into a wide range of energy solutions, it does not appear that any one solution alone will be
able to replace fossil fuels in its entirety. As such it is likely that a number of different alternatives will
be required, providing energy for a specific task in specialized ways in various situations.