Lancet. Planetary Health

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BACKGROUND: Climate change is the greatest threat to human health. Medical students, as future health-care workers, are important in promoting sustainable behaviours, which are strongly associated with individuals' emotional responses to climate change. At Würzburg University Hospital (Würzburg, Germany), a one-term optional course (40 learning units) about planetary health and two lectures within the curricular course Environmental Medicine were introduced in 2021. We aimed to examine the effects of these courses on the emotions and motivations of students in acting against climate change...

BACKGROUND: Heatwaves present health risks globally but there is limited evidence on how temperature perceptions affect activities. This study aimed to examine community perceptions of heat as a potential health hazard and ascertain the current heat protection measures of the residents of the South East Asia Community Observatory (SEACO) in Malaysia. METHODS: In this longitudinal study, we randomly selected community members aged between 18 and 70 years who resided in Segamat district of Johor state, Malaysia...

BACKGROUND: Education has a pivotal role in preparing society to address the forthcoming health impacts of the climate crisis. Education provides the tools necessary to instil both individual and collective attitudes for mitigating climate change, fosters the development of adaptive skills and mindsets, and promotes a critical understanding of climate change. The aim of the PERSIST project was to assess the effectiveness of a school educational intervention to strengthen literacy on the climate crisis, pro-environmental behaviours, and systems thinking in high school students (aged 14-18 years)...

BACKGROUND: Although existing literature provides various tools, frameworks, and guidelines for building health-care facilities that can withstand the impacts of climate change, there is little research focused on the practical implementation of such strategies. This gap in the research is particularly noticeable when applying these guidelines to specific geographical and environmental contexts. We focus specifically on the southeast Asia region, a region that has been identified as one of the most susceptible to the effects of a changing climate...

BACKGROUND: The carbon footprint of Canada's health sector is among the worst in the world, responsible for 4·6% of Canada's total greenhouse gas emissions. A quarter of emissions from Canada's health sector are linked to pharmaceuticals, including metered dose inhalers (MDIs). MDIs use propellants, such as hydrofluorocarbons, which act as greenhouse gas emissions and contribute to the health-care sector's overall carbon footprint. The objective of this study was to describe MDI prescribing, dispensing, usage, and waste patterns at The Ottawa Hospital (Ottawa, ON, Canada)...

BACKGROUND: The communities of El Salto and Juanacatlán face negative impacts on human and ecosystem health due to their proximity to the second-largest industrial area in Mexico. Despite living in a region negatively impacted by high levels of pollution, these communities have organised to foster planetary health by reforesting with native plants, campaigning to stop further industrial development, and founding the Xonacatlán Indigenous Council (XIC) to reclaim traditional ways of living...

BACKGROUND: Climate change poses a substantial threat to the mental wellbeing of young people. Population-level research is urgently needed to help inform policies and interventions to ensure that young people are not burdened by long-term mental health impacts from climate change. We sought to identify the prevalence, distribution, and factors associated with climate change-related mental and emotional health outcomes among young people (aged 13-34 years) in Canada. METHODS: This study is part of a larger cross-sectional survey, which examined mental and emotional health responses to climate change among individuals aged 13 years or older from across Canada...

BACKGROUND: Climate change and mental health outcomes are two of the most pressing global crises. Despite the increasing global mental health burden, climate-related mental health outcomes research is nascent and isolated, with substantial gaps across regions and disciplines. Connecting Climate Minds is a global initiative connecting researchers, experts, and people with lived experience of adverse mental health outcomes to identify regional research needs and create a community to support improved climate-related mental health outcomes...

BACKGROUND: Green education is an essential precursor to promoting long-term sustainable practices and fostering environmentally conscious behaviours, especially among the younger generations. Such education equips individuals with the knowledge, awareness, and experiences necessary for green behavioural shifts, empowering them to engage actively in sustainable practices in the long run, which is essential for ensuring environmental sustainability. However, green education practices and policies vary among the countries of the Association of Southeast Asian Nations (ASEAN) owing to different levels of socioeconomic development, national priorities, and capacities of each member state...

BACKGROUND: Addressing complex and interconnected ecological, social, and health issues necessitates upstream, solutions-oriented, and whole-systems thinking. Specifically, exploring what it means to live in reciprocity with the planet and all living systems, now and for generations to come, can have a crucial role in advancing planetary health. METHODS: In this presentation, we show findings from four gatherings that we co-designed and co-hosted to connect communities, lands, waters, climate, and health...

BACKGROUND: Since the 1970s, microplastic contamination has been discovered in various environments. These emerging pollutants threaten water quality and freshwater ecosystems. We aimed to assess microplastic contamination in the Nan River by quantifying their presence, characterising their morphology, and identifying their polymer composition. METHODS: The survey was conducted along the Nan River in northern Thailand, which is divided into three distinct zones based on land use (ie, community areas, agricultural areas, and natural areas)...

BACKGROUND: Given the urgency of transitioning towards sustainable nutrition, dietary shifts that provide co-benefits to human health and the environment are imperative. There is currently no database of the environmental impacts of foods that reflects Canada's unique geographical and agri-climatic context and regional inputs and emissions. To determine sustainable diets, harmonising nutritional considerations with environmental impacts is also essential for an equitable comparison of foods...

BACKGROUND: Malaria remains one the leading communicable causes of death. Approximately half of the world's population is considered at risk of infection, predominantly in African and South Asian countries. Although malaria is preventable, heterogeneity in sociodemographic and environmental risk factors over time and across diverse geographical and climatological regions make outbreak prediction challenging. Data-driven approaches accounting for spatiotemporal variability could offer potential for location-specific early warning tools for malaria...

BACKGROUND: There have been many modelled studies of potential health co-benefits from actions to reduce greenhouse gas emissions, but so far there have been no large-scale attempts to compare the magnitude of health and climate effects across sectors, countries, and study designs. METHODS: As part of the Pathfinder Initiative project an umbrella review of studies was done, and 26 previous reviews were identified with 57 primary studies included. Studies included in the review were required to have quantified changes in greenhouse gas emissions and health effects (or risk factors) from defined actions to reduce climate effects...

BACKGROUND: Planetary health equity (PHE) is defined here as equitable good health in a stable Earth system. PHE is arguably in crisis. Human-made climate change is damaging global populations through hotter temperatures, wildfires, and more severe and frequent storms, flooding, and landslides. A tsunami of health inequities will result from this, as pre-existing health conditions and inequities in living and working conditions ensure that socially disadvantaged groups and people in low-income and middle-income countries are disproportionately affected by climate change...

BACKGROUND: Rural schools in Amazonas, Brazil, often offer ultra-processed foods in school meals for students, which can lead to health problems and loss of regional food culture. We show an analysis of the menu offered in a riverside school in the Brazilian Amazon and the acceptability of students regarding the consumption of the food they are served with. METHODS: Data were collected in situ, in a riverside school in southern Amazonas, through the analysis of the school menu and the application of an investigative questionnaire to 37 students in the 9th grade of Junior High School...

BACKGROUND: Given the effect of urbanisation on land use, allocation, and implementation of urban green spaces, we attempt to analyse the sociospatial distribution and equity in access to urban parks in Bengaluru, India, also known as the garden city of India. METHODS: Geospatial method was used for mapping the park's distribution and measuring the accessibility using road network data. To understand equitable access to the parks, four socioeconomic parameters from 2011 census (ie, population density, children aged 6 years or younger, proxy wealth index, and the Scheduled Caste population) were correlated with the parks' accessibility...

BACKGROUND: Increased frequencies and duration of extreme heat events have caused severe heat stress, especially among elderly people. Despite its obvious cause and universally known preventive measures, heat stress preventive measures have not been implemented effectively at community levels. This study examined heat coping practices among elderly people and their associations with living conditions, social interactions, and community involvement. METHODS: A self-administered questionnaire was done to assess heat-coping practices to mitigate heat stress, living conditions, and interactions with family, friends, and neighbours...

BACKGROUND: Increasing evidence suggests that air pollution exposure contributes to the development of mental health problems, including psychosis and depression. However, little is known about the importance of early-life exposure, nor the potential role of noise pollution, a correlate of air pollution. We examined the association of exposure to air and noise pollution from pregnancy to age 12 years with three mental health problems assessed at ages 12, 18, and 24 years. METHODS: Data were from the Avon Longitudinal Study of Parents and Children (ALSPAC), which tracks the development of about 14 000 babies who had expected delivery dates between April 1, 1991, and Dec 31, 1992, in Avon, UK...