There is now increasing evidence that the public has become much more aware of global warming, climate change and environmental risks. This has been repeatedly demonstrated in a number of official surveys and other research. However, the salience of these issues varies; for some social groups, there are other more significant problems and urgent priorities. It has also been found that while expressing strong beliefs about the negative consequences of global warming, or dependence on fossil fuels, or more positive approval of alternative and renewable energy sources, people do not seem to have translated those opinions into practical actions to limit their energy use in their domestic consumption, lifestyles, or travel patterns, for example. It is this apparent 'discrepancy' between stated beliefs (and values) and behaviour, which comprises the so-called 'value-action gap'. Various writers have observed this in different contexts previously, as will be discussed below. In this chapter, we examine the importance of the value-action gap in relation to hydrogen energy and the emerging hydrogen economy. Qualitative and quantitative data are presented from a series of focus groups and a telephone questionnaire survey of selected samples in seven different areas of England and Wales 1 . The chapter first gives a very brief outline of the nature of hydrogen energy and its potential uses as an innovative technology. Secondly, it reviews selected literature about public attitudes towards environmental and energy issues and the apparent valueaction gap. Findings from our recent research are then discussed. Finally, some general conclusions are offered to account for the ambivalence revealed in this case of hydrogen energy, and the disjunction between people's awareness of an energy crisis and their reluctance to change behaviour.
Hydrogen energy and the 'hydrogen economy'With the rapid depletion of fossil fuels (coal, natural gas, oil), governments and energy corporations have been increasingly investing in research and development in alternative and sustainable (renewable) energy sources. The Stern