Introduction: Technonatural time–spaces

In this special issue of Science as Culture, we mull over the current state of our common environments and the politics of nature more generally. 'The Death of Environmentalism' has recently emerged as a provocative thesis circulating around the Internet and beyond. Whilst this thesis may well be generating more hot air than cool analysis, a growing range of voices are suggesting that environmentalism is in trouble and that there is a real need to open up the environmental debate in new ways. In this issue, we seek to engage with these debates but also to explore possible openings. We suggest that the notion of 'Technonatures' may provide a fruitful metaphor/myth for motivating discussion and reflection about changing relations between our ecologies, bodies, technologies and urban worlds. We hope readers will engage with the contributors to this issue, as debates progress about the possible contours of a new spatial/temporal politics of environmentalism for the new century.