Climate Change Adaptation and Mitigation: Implications for land acquisition and population relocation

In response to the challenge of climate change, governments of developing countries are evolving adaptation and mitigation programmes for which they are seeking international financing. This paper presents the findings of a review of national action programmes and other interventions to assess their likely societal impacts with an emphasis on land-use change, future land acquisitions, population displacement and resettlement. Evidence presented suggests there is likely to be additional and large-scale resettlement related to adaptation and mitigation investments in the coming decades. It describes such climate change-related projects as infrastructure development projects and the population displacement they may generate as a form of development-created involuntary resettlement. The article considers the policy and development challenges such involuntary resettlement will pose and assesses the robustness of current governance arrangements to manage that resettlement. It is argued that the United Nations Framework Convention on Climate Change process presents opportunities for improving the national and international management of land acquisition and resettlement, particularly in least developed countries and small island states, but cautions that, at present, the financing arrangements do not prioritise the legal protection of affected populations

Interacting regional-scale regime shifts for biodiversity and ecosystem services

Current trajectories of global change may lead to regime shifts at regional scales, driving coupled human–environment systems to highly degraded states in terms of biodiversity, ecosystem services, and human well-being. For business-as-usual socioeconomic development pathways, regime shifts are projected to occur within the next several decades, to be difficult to reverse, and to have regional- to global-scale impacts on human society. We provide an overview of ecosystem, socioeconomic, and biophysical mechanisms mediating regime shifts and illustrate how these interact at regional scales by aggregation, synergy, and spreading processes. We give detailed examples of interactions for terrestrial ecosystems of central South America and for marine and coastal ecosystems of Southeast Asia. This analysis suggests that degradation of biodiversity and ecosystem services over the twenty-first century could be far greater than was previously predicted. We identify key policy and management opportunities at regional to global scales to avoid these shifts