> Wealthy nations must step up support for Africa and vulnerable countries in addressing past, present and future impacts of climate change The 2022 report of the Intergovernmental Panel on Climate Change paints a dark picture of the future of life on earth, characterised by ecosystem collapse, species extinction and climate hazards such as heatwaves and floods.1 These are all linked to physical and mental health problems, with direct and indirect consequences of increased morbidity and mortality. To avoid these catastrophic (...) health effects across all regions of the globe, there is broad agreement—as 231 health journals argued together in 2021—that the rise in global temperature must be limited to <1.5°C compared with pre-industrial levels. While the Paris Agreement of 2015 outlines a global action framework that incorporates providing climate finance to low-income and middle-income countries, this support has yet to materialise.2 COP27 is the fifth Conference of the Parties (COP) to be organised in Africa since its inception in 1995. Ahead of this meeting, we—as health journal editors from across the continent—call for urgent action to ensure it is the COP that finally delivers climate justice for Africa and vulnerable countries. This is essential for the health of those countries, and for the health of the whole world. The climate crisis has had an impact on the environmental and social determinants of health across Africa, leading to devastating health effects.3 Impacts on health can result directly from environmental shocks and indirectly through socially mediated effects.4 Climate change-related risks in Africa include flooding, drought, heatwaves, reduced food production and reduced labour productivity.5 Droughts in sub-Saharan Africa …. (shrink)

Industrialisation, urbanisation and economic development have produced unprecedented improvements in human health. They have also produced unprecedented exploitation of Earth’s life support systems, moving the planet into a new geological epoch, the Anthropocene—one defined by human influence on natural systems. The health sector has been complicit in this influence. Bioethics, too, must acknowledge its role—the environmental threats that will shape human health in this century represent a ‘perfect moral storm’ challenging the ethical theories of the last. The US conservationist Aldo (...) Leopold saw this gathering storm more clearly than many, and in his Land Ethic describes the beginnings of a route to safe passage. Its starting point is a reinterpretation of the ethical relationship between humanity and the ‘land community’, the ecosystems we live within and depend upon; moving us from ‘conqueror’ to ‘plain member and citizen’ of that community. The justice of the Land Ethic questions many presuppositions implicit to discussions of the topic in biomedical ethics. By valuing the community in itself—in a way irreducible to the welfare of its members—it steps away from the individualism axiomatic in contemporary bioethics. Viewing ourselves as citizens of the land community also extends the moral horizons of healthcare from a solely human focus. Taking into account the ‘stability’ of the community requires intergenerational justice. The resulting vision of justice in healthcare—one that takes climate and environmental justice seriously—could offer health workers an ethic fit for the future. (shrink)