Challenges to Protecting the Right to Health under the Climate Change Regime

Researchers and global policy makers are increasingly documenting negative health impacts from climate change, raising concerns for realizing the right to health. Importantly, courts have held that anthropogenic activities affecting climate may threaten a population’s standard of health and compromise its inviolable right to health. However, legal hurdles—such as the fragmentation of climate change and human rights laws and the difficulties in proving causal links—hamper efforts to litigate right to health claims in the context of climate change. To address these challenges, this article assesses the detrimental effects of climate change from an international human rights perspective and analyzes climate change litigation to explore potential avenues to press for the right to health in the face of climate change.     

Climate change: impacts on and implications for global health

The most severe consequences of climate change will accrue to the poorest people in the poorest countries, despite their own negligible contribution to greenhouse gas emissions. In recent years, global health efforts in those same countries have grown dramatically. However, the emerging scientific consensus about climate change has not yet had much influence on the routine practice and strategies of global health. We review here the anticipated types and global distribution of health impacts of climate change, discuss relevant aspects of current global interventions for health in low-income countries, and consider potential elements of a framework for appropriately and efficiently mainstreaming global climate change-mitigation and -adaptation strategies into the ongoing enterprise of global health. We propose a collaborative learning initiative involving four areas: (1) increased awareness among current global health practitioners of climate change and its potential impacts for the most disadvantaged, (2) strengthening of the evidence base, (3) incorporation now of climate change-mitigation and -adaptation concerns into design of ongoing global health programs, and (4) alignment of current global health program targets and methods with larger frameworks for climate change and sustainable development. The great vulnerability to climate change of populations reached by current global health efforts should prompt all concerned with global health to take a leading role in advocating for climate change mitigation in their own countries.     

Climate change, health, and vulnerability in Canadian northern Aboriginal communities

BACKGROUND: Canada has recognized that Aboriginal and northern communities in the country face unique challenges and that there is a need to expand the assessment of vulnerabilities to climate change to include these communities. Evidence suggests that Canada's North is already experiencing significant changes in its climate--changes that are having negative impacts on the lives of Aboriginal people living in these regions. Research on climate change and health impacts in northern Canada thus far has brought together Aboriginal community members, government representatives, and researchers and is charting new territory. METHODS AND RESULTS: In this article we review experiences from two projects that have taken a community-based dialogue approach to identifying and assessing the effects of and vulnerability to climate change and the impact on the health in two Inuit regions of the Canadian Arctic. CONCLUSIONS: The results of the two case projects that we present argue for a multi-stakeholder, participatory framework for assessment that supports the necessary analysis, understanding, and enhancement of capabilities of local areas to respond and adapt to the health impacts at the local level.     

Developing and implementing a targeted health-focused climate communications campaign in Ontario—#MakeItBetter

SettingPublic health practitioners are called to effectively communicate with the public on climate change. The climate crisis requires swift action that starts with public awareness of climate-related health impacts and leads to public support for individual, community and systemic actions to mitigate and adapt to climate change.InterventionThis paper discusses learnings about public opinion research and communication strategies and how a health-focused climate communication campaign—#MakeItBetter—could help to increase awareness and engage new audiences, including public health partners, in conversations about climate change in order to reduce climate-related health impacts for current and future generations. The #MakeItBetter campaign was grounded in evidence-informed messaging, being sensitive to health inequities. Emerging research and pre-campaign testing suggest that framing climate change as a health issue is a promising practice.OutcomesThe #MakeItBetter campaign appeals to parents/caregivers to learn more about climate-related health impacts, take protective action for children and support multi-level climate action. The campaign launch secured 89 news stories, including multicultural media coverage. Longer-term evaluation is required to determine the campaign’s effectiveness in building public support for climate action.ImplicationsAn innovative approach to climate communication that draws on the intersections between behavioural and climate sciences and engages in multi-sectoral collaboration can spur both climate action and health protection, aiding public health practitioners and partners in effectively communicating the urgency for climate action. More work is needed to support communication on climate change as an inequity multiplier and promote climate action and community resilience for health equity co-benefits.     

Climate Change,Human Health,and Biomedical Research: Analysis of the National Institutes of Health Research Portfolio

Background: According to a wide variety of analyses and projections, the potential effects of global climate change on human health are large and diverse. The U.S. National Institutes of Health (NIH), through its basic, clinical, and population research portfolio of grants, has been increasing efforts to understand how the complex interrelationships among humans, ecosystems, climate, climate variability, and climate change affect domestic and global health.Objectives: In this commentary we present a systematic review and categorization of the fiscal year (FY) 2008 NIH climate and health research portfolio.Methods: A list of candidate climate and health projects funded from FY 2008 budget appropriations were identified and characterized based on their relevance to climate change and health and based on climate pathway, health impact, study type, and objective.Results: This analysis identified seven FY 2008 projects focused on climate change, 85 climate-related projects, and 706 projects that focused on disease areas associated with climate change but did not study those associations. Of the nearly 53,000 awards that NIH made in 2008, approximately 0.17% focused on or were related to climate.Conclusions: Given the nature and scale of the potential effects of climate change on human health and the degree of uncertainty that we have about these effects, we think that it is helpful for the NIH to engage in open discussions with science and policy communities about government-wide needs and opportunities in climate and health, and about how NIH’s strengths in human health research can contribute to understanding the health implications of global climate change. This internal review has been used to inform more recent initiatives by the NIH in climate and health.     

Healthy Cities, local environmental action and climate change

This paper reports results of a study that explored the relationship between the local environmental actions of Healthy Cities programs and the adverse health impacts of climate change. The analysis is primarily based on a limited literature review of climate change and health, with particular attention to the relationships between Healthy Cities and climate change, and on documentary analysis of information from organization reports and website content associated with Healthy Cities programs in Europe and Australia. Four semi-structured interviews with key people in two Healthy Cities programs in Europe and Australia were conducted to provide information to supplement and complement the published information and to verify theme identification. The main findings of this study are that, although there is no explicit connection between the local activities of Healthy Cities programs and the potential (or actual) adverse health impacts of climate change, Healthy Cities programs are involved in many local environmental actions and some of these actions, for example, those relating to improving air quality and reducing pollution, are linked implicitly to the health impacts of climate change. Through their local relationships and their participation in regional networks, Healthy Cities are able to make connections between local environmental actions and the health impacts of climate change. Furthermore, expanding Healthy Cities to include eco-social sustainability as a central aim not only has the potential to strengthen the links between local environmental actions and climate change, but also presents a relevant health development setting for exploring the social and environmental sustainability of cities.     

Public health nurses' knowledge and attitudes regarding climate change

Background: Climate change affects human health, and health departments are urged to act to reduce the severity of these impacts. Yet little is known about the perspective of public health nurses—the largest component of the public health workforce—regarding their roles in addressing health impacts of climate change.Objectives: We determined the knowledge and attitudes of public health nurses concerning climate change and the role of public health nursing in divisions of health departments in addressing health-related impacts of climate change. Differences by demographic subgroups were explored.Methods: An online survey was distributed to nursing directors of U.S. health departments (n = 786) with Internet staff directories.Results: Respondents (n = 176) were primarily female, white public health nursing administrators with ≥ 5 years of experience. Approximately equal percentages of respondents self-identified as having moderate, conservative, and liberal political views. Most agreed that the earth has experienced climate change and that climate change is somewhat controllable. Respondents identified an average of 5 of the 12 listed health-related impacts of climate change, but the modal response was zero impact. Public health nursing was perceived as having responsibility to address health-related impacts of climate change but lacking the ability to address these impacts.Conclusions: Public health nurses view the environment as under threat and see a role for nursing divisions in addressing health effects of climate change. However, they recognize the limited resources and personnel available to devote to this endeavor.     

Climate Justice,Humans Rights,and the Case for Reparations

The global community is facing an existential crisis that threatens the web of life on this planet. Climate change, in addition to being a fundamental justice and ethical issue, constitutes a human rights challenge. It is a human rights challenge because it undermines the ability to promote human flourishing and welfare through the implementation of human rights, particularly the right to life and the right to health. It is also a human rights challenge because climate change disproportionately impacts poor and the vulnerable people in both low-income and high-income countries. Those living in many low-income countries are subject to the worst impacts of climate change even though they have contributed negligibly to the problem. Further, low-income countries have the fewest resources and capabilities at present to adapt or cope with the severe, long-lasting impacts of climate change. Building on human rights principles of accountability and redress for human rights violations, this paper responds to this injustice by seeking to make long-neglected societal amends through the implementation of the concept of climate reparations. After discussing the scientific evidence for climate change, its environmental and socioeconomic impacts, and the ethical and human rights justifications for climate reparations, the paper proposes the creation of a new global institutional mechanism, the Global Climate Reparations Fund, which would be linked with the United Nations Human Rights Council, to fund and take action on climate reparations. This paper also identifies which parties are most responsible for the current global climate crisis, both historically and currently, and should therefore fund the largest proportion of climate-related reparations.     

Climate change,women's workload in smallholder agriculture,and embodied political ecologies of undernutrition in northern Ghana

The burden of child undernutrition across Africa remains extraordinarily high. Among children under age five, chronic and acute undernutrition is responsible for more ill-health than any other cause. While climate change exacerbates the multiple burdens of undernutrition, we know very little about the embodied effects on women's workload in agriculture and implications for feeding practices, especially for infants whose nutrition depends on mothers' time. In this article, political ecologies of health, with its nested, place-based analysis, is used as a framework to address this knowledge gap. The study took place in Ghana's Upper West Region, a semi-arid and resource-poor setting with higher undernutrition rates. In-depth interviews were conducted with smallholder farmers (n = 33) whose infants have sub-optimal growth, and key informants (n = 7) with expertise in nutrition and health. Findings from the study demonstrate how climate change puts pressure on women's productive time, leading to poor child feeding practices and undernutrition. Ultimately, the article argues that there are hidden impacts of climate change on undernutrition. Global undernutrition interventions should therefore move beyond biomedical solutions to address these hidden impacts, some of which are social, gendered, and structural in nature.     

Global Climate Implications for Homelessness: A Scoping Review

Homelessness is a persistent global challenge with significant health impacts on those affected. Homeless people are by definition the most exposed to weather conditions and the social and economic problems caused by extreme weather and climate change and variability. This systematic review was designed to synthesize the academic literature that addresses the health and social implications of global climate change for homelessness. The question examined in this systematic scoping review is the following: What is the current state of knowledge in the scientific literature on the health and social implications of global climate change for homelessness? A systematic scoping review method was used to identify and synthesize the peer-reviewed literature relevant to this question. The databases searched were PsycINFO, Medline, Scopus, and Google Scholar. Of the 26 papers identified in this review, 20 employed original data analyses with conclusions largely inferred from cross-sectional associations. Themes included the potential influence of climate change on homelessness prevalence, climate impacts that exacerbate specific vulnerabilities of homeless populations (e.g., chronic illness, exposure, stigmatization), and health and social outcomes. Service use and design implications were also addressed. Given the scale of the impacts of climate change on homelessness, the literature on this topic poses promising directions but is under-developed in its current state to adequately inform risk mitigation and response planning. A systems framework is proposed here to inform future research and service design.     

Climate change adaptation: Where does global health fit in the agenda?

ABSTRACT: Human-induced climate change will affect the lives of most populations in the next decade and beyond. It will have greatest, and generally earliest, impact on the poorest and most disadvantaged populations on the planet. Changes in climatic conditions and increases in weather variability affect human wellbeing, safety, health and survival in many ways. Some impacts are direct-acting and immediate, such as impaired food yields and storm surges. Other health effects are less immediate and typically occur via more complex causal pathways that involve a range of underlying social conditions and sectors such as water and sanitation, agriculture and urban planning. Climate change adaptation is receiving much attention given the inevitability of climate change and its effects, particularly in developing contexts, where the effects of climate change will be experienced most strongly and the response mechanisms are weakest. Financial support towards adaptation activities from various actors including the World Bank, the European Union and the United Nations is increasing substantially. With this new global impetus and funding for adaptation action come challenges such as the importance of developing adaptation activities on a sound understanding of baseline community needs and vulnerabilities, and how these may alter with changes in climate. The global health community is paying heed to the strengthening focus on adaptation, albeit in a slow and unstructured manner. The aim of this paper is to provide an overview of adaptation and its relevance to global health, and highlight the opportunities to improve health and reduce health inequities via the new and additional funding that is available for climate change adaptation activities.     

The potential impacts of climate variability and change on health impacts of extreme weather events in the United States

Extreme weather events such as precipitation extremes and severe storms cause hundreds of deaths and injuries annually in the United States. Climate change may alter the frequency, timing, intensity, and duration of these events. Increases in heavy precipitation have occurred over the past century. Future climate scenarios show likely increases in the frequency of extreme precipitation events, including precipitation during hurricanes, raising the risk of floods. Frequencies of tornadoes and hurricanes cannot reliably be projected. Injury and death are the direct health impacts most often associated with natural disasters. Secondary effects, mediated by changes in ecologic systems and public health infrastructure, also occur. The health impacts of extreme weather events hinge on the vulnerabilities and recovery capacities of the natural environment and the local population. Relevant variables include building codes, warning systems, disaster policies, evacuation plans, and relief efforts. There are many federal, state, and local government agencies and nongovernmental organizations involved in planning for and responding to natural disasters in the United States. Future research on health impacts of extreme weather events should focus on improving climate models to project any trends in regional extreme events and as a result improve public health preparedness and mitigation. Epidemiologic studies of health effects beyond the direct impacts of disaster will provide a more accurate measure of the full health impacts and will assist in planning and resource allocation.     

An approach for assessing human health vulnerability and public health interventions to adapt to climate change

Assessments of the potential human health impacts of climate change are needed to inform the development of adaptation strategies, policies, and measures to lessen projected adverse impacts. We developed methods for country-level assessments to help policy makers make evidence-based decisions to increase resilience to current and future climates, and to provide information for national communications to the United Nations Framework Convention on Climate Change. The steps in an assessment should include the following: a) determine the scope of the assessment; b) describe the current distribution and burden of climate-sensitive health determinants and outcomes; c) identify and describe current strategies, policies, and measures designed to reduce the burden of climate-sensitive health determinants and outcomes; d) review the health implications of the potential impacts of climate variability and change in other sectors; e) estimate the future potential health impacts using scenarios of future changes in climate, socioeconomic, and other factors; f) synthesize the results; and g) identify additional adaptation policies and measures to reduce potential negative health impacts. Key issues for ensuring that an assessment is informative, timely, and useful include stakeholder involvement, an adequate management structure, and a communication strategy.     

Impact of climate change on health: what is required of climate modellers?

The potential impacts of climate change on human health are significant, ranging from direct effects such as heat stress and flooding, to indirect influences including changes in disease transmission and malnutrition in response to increased competition for crop and water resources. Development agencies and policy makers tasked with implementing adaptive strategies recognize the need to plan for these impacts. However at present there is little guidance on how to prioritize their funding to best improve the resilience of vulnerable communities. Here we address this issue by arguing that closer collaboration between the climate modelling and health communities is required to provide the focused information necessary to best inform policy makers. The immediate requirement is to create multidisciplinary research teams bringing together skills in both climate and health modelling. This will enable considerable information exchange, and closer collaboration will highlight current uncertainties and hopefully routes to their reduction. We recognize that climate is only one aspect influencing the highly complex behaviour of health and disease issues. However we are optimistic that climate-health model simulations, including uncertainty bounds, will provide much needed estimates of the likely impacts of climate change on human health.     

Comments on the process and product of the health impacts assessment component of the national assessment of the potential consequences of climate variability and change for the United States

In 1990 Congress formed the U.S. Global Change Research Program and required it to conduct a periodic national assessment of the potential impacts of climate variability and change on all regions and select economic/resource sectors of the United States. Between 1998 and 2000, a team of experts collaborated on a health impacts assessment that formed the basis for the first National Assessment's analysis of the potential impacts of climate on human health. The health impacts assessment was integrated across a number of health disciplines and involved a search for and qualitative expert judgment review of data on the potential links between climate events and population health. Accomplishments included identification of vulnerable populations, adaptation strategies, research needs, and data gaps. Experts, stakeholders, and the public were involved. The assessment is reported in five articles in this issue; a summary was published in the April 2000 issue of Environmental Health Perspectives. The assessment report will enhance understanding of ways human health might be affected by various climate-associated stresses and of the need for further empirical and predictive research. Improved understanding and communication of the significance and inevitability of uncertainties in such an assessment are critical to further research and policy development.     

Climate change and animal health in Africa

Climate change is expected to have direct and indirect impacts on African livestock. Direct impacts include increased ambient temperature, floods and droughts. Indirect impacts are the result of reduced availability of water and forage and changes in the environment that promote the spread of contagious diseases through increased contact between animals, or increased survival or availability of the agent or its intermediate host. The distribution and prevalence of vector-borne diseases may be the most significant effect of climate change. The potential vulnerability of the livestock industry will depend on its ability to adapt to such changes. Enhancing this adaptive capacity presents a practical way of coping with climate change. Adaptive capacity could be increased by enabling the African livestock owner to cope better with animal health problems through appropriate policy measures and institutional support. Developing an effective and sustainable animal health service, associated surveillance and emergency preparedness systems and sustainable disease control and prevention programmes is perhaps the most important strategy for dealing with climate change in many African countries.     

The health effects of climate change: a survey of recent quantitative research

In recent years there has been a large scientific and public debate on climate change and its direct as well as indirect effects on human health. In particular, a large amount of research on the effects of climate changes on human health has addressed two fundamental questions. First, can historical data be of some help in revealing how short-run or long-run climate variations affect the occurrence of infectious diseases? Second, is it possible to build more accurate quantitative models which are capable of predicting the future effects of different climate conditions on the transmissibility of particularly dangerous infectious diseases? The primary goal of this paper is to review the most relevant contributions which have directly tackled those questions, both with respect to the effects of climate changes on the diffusion of non-infectious and infectious diseases, with malaria as a case study. Specific attention will be drawn on the methodological aspects of each study, which will be classified according to the type of quantitative model considered, namely time series models, panel data and spatial models, and non-statistical approaches. Since many different disciplines and approaches are involved, a broader view is necessary in order to provide a better understanding of the interactions between climate and health. In this respect, our paper also presents a critical summary of the recent literature related to more general aspects of the impacts of climate changes on human health, such as: the economics of climate change; how to manage the health effects of climate change; the establishment of Early Warning Systems for infectious diseases.     

Un sistema de vigilancia de salud pública para el cambio climático en las ciudades

This paper makes a first proposal for a public health surveillance system for climate change in cities, and describes the process that led to its definition. After several years of monitoring different aspects related to climate change and its impact, the public health services of Barcelona made a preliminary proposal and gathered a working group of experts to discuss and review it. Four categories of components were defined: climate data, health impacts of climate change and its determinants, contributions of the city to mitigation (especially those with health co-benefits), and actions to reduce vulnerability to extreme events. They were broken in twelve components, with indicators for each. The proposal was further refined with subsequent reviews, and is being used by the city public health services involved in this field.     

Integrating climate change adaptation into public health practice: using adaptive management to increase adaptive capacity and build resilience

Background: Climate change is expected to have a range of health impacts, some of which are already apparent. Public health adaptation is imperative, but there has been little discussion of how to increase adaptive capacity and resilience in public health systems.Objectives: We explored possible explanations for the lack of work on adaptive capacity, outline climate–health challenges that may lie outside public health’s coping range, and consider changes in practice that could increase public health’s adaptive capacity.Methods: We conducted a substantive, interdisciplinary literature review focused on climate change adaptation in public health, social learning, and management of socioeconomic systems exhibiting dynamic complexity.Discussion: There are two competing views of how public health should engage climate change adaptation. Perspectives differ on whether climate change will primarily amplify existing hazards, requiring enhancement of existing public health functions, or present categorically distinct threats requiring innovative management strategies. In some contexts, distinctly climate-sensitive health threats may overwhelm public health’s adaptive capacity. Addressing these threats will require increased emphasis on institutional learning, innovative management strategies, and new and improved tools. Adaptive management, an iterative framework that embraces uncertainty, uses modeling, and integrates learning, may be a useful approach. We illustrate its application to extreme heat in an urban setting.Conclusions: Increasing public health capacity will be necessary for certain climate–health threats. Focusing efforts to increase adaptive capacity in specific areas, promoting institutional learning, embracing adaptive management, and developing tools to facilitate these processes are important priorities and can improve the resilience of local public health systems to climate change.