http://repub.eur.nl/res/aut/55175/ List of Publications en http://repub.eur.nl/static-eur/img/logo.png http://repub.eur.nl http://repub.eur.nl/res/pub/34979/ 2012-01-01T00:00:00Z A range of studies from Earth system scientists argue that human activities drive multiple, interacting effects that cascade through the Earth system. Recent contributions state and quantify nine, interacting 'planetary boundaries' with possible threshold effects. This article provides an overview of the global governance challenges that follow from this notion of multiple, interacting and possibly non-linear 'planetary boundaries'. Here we discuss four interrelated global environmental governance challenges, as well as some possible ways to address them. The four identified challenges are related to, first, the interplay between Earth system science and global policies, and the implications of differences in risk perceptions in defining these boundaries; second, the capacity of international institutions to deal with individual 'planetary boundaries', as well as interactions between them; third, the role of international organizations in dealing with 'planetary boundaries' interactions; and fourth, the role of global governance in framing social-ecological innovations. http://repub.eur.nl/res/pub/35043/ 2011-11-01T00:00:00Z This article explores the links between agency, institutions, and innovation in navigating shifts and large-scale transformations toward global sustainability. Our central question is whether social and technical innovations can reverse the trends that are challenging critical thresholds and creating tipping points in the earth system, and if not, what conditions are necessary to escape the current lock-in. Large-scale transformations in information technology, nano- and biotechnology, and new energy systems have the potential to significantly improve our lives; but if, in framing them, our globalized society fails to consider the capacity of the biosphere, there is a risk that unsustainable development pathways may be reinforced. Current institutional arrangements, including the lack of incentives for the private sector to innovate for sustainability, and the lags inherent in the path dependent nature of innovation, contribute to lock-in, as does our incapacity to easily grasp the interactions implicit in complex problems, referred to here as the ingenuity gap. Nonetheless, promising social and technical innovations with potential to change unsustainable trajectories need to be nurtured and connected to broad institutional resources and responses. In parallel, institutional entrepreneurs can work to reduce the resilience of dominant institutional systems and position viable shadow alternatives and niche regimes.