The 2008 Climate Change Act established the world’s first legally binding climate change target. This has committed the UK to reducing its greenhouse gas emissions by at least 80% by 2050 - a target that requires a major change in the way we live, representative of an unprecedented reversal of a universal trend among industrialised nations concerning the relationship between economic growth and carbon emission. The key question going forward, therefore, is: How is such a radical behavioural/cultural transformation going to be brought about? The current government's answer appears to rest heavily upon behaviour change techniques that seek to nudge (implicitly encourage, incentivise, etc.) citizens' toward more sustainable behaviour patterns.
The problem with this approach - or at least with the way in which it is currently being framed by the Coalition government in major initiatives such as the Green Deal - is that it threatens to actually undermine sustained sustainable behaviour change: for instance, by presenting energy-saving simply as a means of saving money. Providing this self-interested motivation for environmentally responsible action does not translate into meaningful engagement with climate change. And it also runs the risk of trivialising the issue at hand. The debate about sustainable behaviour change must remain connected to the fact that climate change is already a daily reality for some of the world's poorest communities, where unpredictable rainfall and drought patterns are threatening food security and livelihoods. As Mary Robinson, former UN High Commissioner for Human Rights and climate justice advocate, states: "These communities are not responsible for the emissions causing climate change, and yet they are disproportionately affected because of their already vulnerable geographic locations and their lack of climate resilience".
In terms of private morality, we each have a duty of justice not to harm others; and our current levels of emissions can be expected to cause significant harm. Hence, we - citizens of industrialised nations - each have a duty of justice to reduce our net personal emissions to zero, whether by transforming our lifestyles or by offsetting our emissions. And this not only makes sense as an abstract philosophical argument; recent research by Dr Rachel Howell (University of Aberystwyth) has shown that the single most significant motivation among people who had already made major changes towards environmentally responsible, low- or zero-carbon lifestyles was a sincerely held conviction that climate change is a matter of social justice.
Ultimately, it is values and morals that (i) inspire public support for national-level policies and (ii) motivate transformational individual- and household-level behaviour changes; so the quicker the government engages with the issue of sustainable behaviour change in these terms, the more chance that we have of reaching our own decarbonisation targets.