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One of the far-reaching consequences of climate change relates to the forced displacement of people. Climate-induced migration is a very complex issue. The New York Declaration for Refugees and Migrants noted the varied reasons for migration as being armed conflict, poverty, food insecurity, persecution, terrorism, human rights violations, climate change and natural disasters. Despite the recognition in the very first IPCC report in 1990 that the greatest single impact of climate change could be on human migration, it took climate negotiators over two decades to include displacement in climate documents. This article discusses complexity, scale and displacement scenarios, paying particular attention to the plight of small island states and to the climate-conflict-displacement nexus. It analyses the legal regime applicable to political refugees under international law and the current legal lacuna with regard to climate refugees. It surveys recent developments including the Global Compact on Migration, and the Task Force on Climate Displacement. This article argues that while current human rights law provides some protection, it is insufficient, and that the international community should take urgent action to design a legal regime to protect the rights of climate displacees. This is especially true of inhabitants of small island states who will be forced to move because their states are ‘disappearing’. The article argues that major emitters owe a legal duty to help climate displacees and especially the inhabitants of small island states.

“Sustainable Development” has come a long way since the World Commission on Environment and Development first popularized the term in 1987. Virtually everyone is now familiar with the term Sustainable Development, from states to multinational corporations, and from affluent communities in the Global North to impoverished communities in the Global South. It received a new lease of life in 2015 when the United Nations General Assembly adopted Agenda 2030 and Sustainable Development Goals (SDGs). It is recognized that sustainable development requires an inter-disciplinary, multi-level, and bottom-up approach, and that this ideal is easy to state but difficult to operationalize. Pursuant to deliberations at an international workshop at the University of Wisconsin-Madison, which aimed at fostering the exchange of ideas among diverse experts and developing solutions for effective inclusion of women and youth in climate change response strategies, we propose an innovative, practical three-dimensional model that enhances sustainability theory and practice with cross-cutting integration of human rights, gender equity, and Indigenous and local knowledge. We evaluate the utility of the model in two ways: First, we analyze how the model informs current approaches to environmental sustainability and human wellbeing including the SDGs, agroecology, de-growth principles, and planetary health metrics. Then, we explore the feasibility and added value of the approach through seven case studies from Guatemala, Sri Lanka, Malawi, Peru, Côte D’Ivoire, and Aotearoa—New Zealand. We conclude that the proposed model is congruent with current theory and practice. It builds on existing principles by identifying and addressing gaps. It enables practical action in a variety of settings and fosters a more integrated approach to sustainable wellbeing for humanity and our earth. We recommend continued development of this theoretical framework and related guidelines for program design, implementation and evaluation.

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