Global Assessment of Population Exposure to Multiple Climate-Related Hazards From 2003 to 2021: A Retrospective Analysis

Hotspots of Harm: Global Study Reveals Soaring Exposure to Co-Occurring Climate Hazards

A groundbreaking global analysis reveals that populations worldwide are facing a rapidly growing threat from the simultaneous occurrence of multiple climate-related hazards, with exposure to three or more co-occurring hazards—such as heatwaves, droughts, and wildfires—increasing by a staggering 69% between 2003 and 2021. This first-of-its-kind study, integrating data on heatwaves, droughts, floods, extreme precipitation, cyclones, and wildfires, identifies critical hotspots where these multihazard events converge, including northern Russia, the Amazon basin, and the west coast of the USA, disproportionately exposing vulnerable age groups and underscoring an urgent need for health systems to adapt to this complex new reality of compounding climate risks.

Planetary Health Diet and Risk of Mortality and Chronic Diseases: Results From US NHANES, UK Biobank, and a Meta-Analysis

Does the Planetary Health Diet provide benefits both for longevity and the planet?

A groundbreaking study combining data from over 3.2 million people across the US NHANES, UK Biobank, and a comprehensive meta-analysis provides the strongest evidence yet that adhering to the Planetary Health Diet (PHD) significantly reduces the risk of death and major chronic diseases. The research found that high adherence to the PHD—a diet rich in plant-based foods and low in red meat and dairy—was associated with a striking 21% lower risk of all-cause mortality, as well as significantly reduced risks of death from cancer (11% lower) and cardiovascular disease (17% lower). Furthermore, it was linked to a lower incidence of specific conditions, including colorectal cancer, lung cancer, coronary heart disease, stroke, and diabetes, while also being associated with lower diet-related greenhouse gas emissions, proving that what’s good for our personal health is also profoundly beneficial for the health of the planet.

Planetary Health and Climate Action in Radiology

Radiology’s Planetary Prescription: How Medical Imaging Can Slash Its Carbon Footprint and Build Climate Resilience

A groundbreaking review reveals that medical imaging is a major, overlooked contributor to the climate crisis, responsible for nearly 1% of global greenhouse gas emissions, and outlines a crucial three-part framework for radiologists and med students to lead the charge in sustainable healthcare. The article prescribes a shift towards preventive care to reduce the need for resource-intensive treatments, emphasizes the critical elimination of low-value imaging through clinical decision tools and guidelines, and details actionable mitigation strategies like powering down scanners, adopting circular supply chains, and choosing lower-energy modalities like ultrasound over CT when possible. This call to action positions radiology departments at the forefront of building a climate-resilient healthcare system that protects both patient health and the planet.

Greening Healthcare and Slashing Carbon Emissions Through Telemedicine: A Cross-Sectional Study From Over 50 Thousand Remote Consults at a Leading Tertiary Hospital

Early Cognitive and Familial Predictors of Persistent Reading and Arithmetic Dysfluency in Adolescence: A Longitudinal Finnish Cohort Study

A groundbreaking cross-sectional study from a leading Brazilian tertiary hospital demonstrates that telemedicine is a powerful tool for planetary health, revealing that 52,878 remote consultations conducted over 10 months prevented 805,252 km of patient travel and slashed carbon emissions by a staggering 939,641 kg of CO2. This massive reduction, equivalent to the annual emissions of over 200 gasoline-powered cars, highlights telemedicine’s critical role in building a sustainable healthcare system by drastically cutting the transportation footprint, a major contributor to healthcare’s environmental impact, while maintaining access to high-quality care. For medical students, this study provides a compelling, evidence-based model for how integrating digital health innovations into practice is essential for combating climate change and achieving the Sustainable Development Goals.

The Greenhouse Gas Emissions of Pharmaceutical Consumption and Production: An Input–Output Analysis Over Time and Across Global Supply Chains

The Hidden Climate Cost of Pills: Global Pharma Emissions Surge 77%, Outpacing All Other Sectors

A groundbreaking global input-output analysis reveals that the pharmaceutical sector is a major and rapidly growing contributor to the climate crisis, with its greenhouse gas footprint exploding by 77% between 1995 and 2019—far outpacing the 49% growth in total global emissions—driven primarily by soaring consumption in countries like China and the USA and a troubling stagnation in production efficiency gains since 2008. The study exposes vast inequities, showing the average per capita pharma emissions in high-income countries are nearly ten times higher than in lower-middle-income nations, and uncovers the sector’s massive, often overlooked supply chain (Scope 3) emissions, which account for over 80% of its total climate impact in most regions. For medical students, this research is a critical call to action: curbing pharmaceutical overuse, preventing waste, and demanding greater supply chain transparency are essential steps toward building a sustainable, low-carbon healthcare system.

AIR Therapy: Improving Patient and Planetary Health

Breathe Easier, Prescribe Greener: How One Simple Asthma Switch Slashes Carbon Footprint by 97%

An editorial in The Journal of Allergy and Clinical Immunology: In Practice highlights a powerful win-win for asthma care: adopting the Anti-Inflammatory Reliever (AIR) therapy approach—using an inhaled corticosteroid-formoterol combination delivered via dry powder inhaler (DPI) as a reliever—can nearly eliminate the carbon footprint of treatment while maintaining excellent patient outcomes. This strategy, now recommended by GINA, reduces emissions by a staggering 96-97% compared to traditional regimens reliant on hydrofluorocarbon-propelled pressurized metered-dose inhalers (pMDIs), slashing the annual per-patient footprint from over 240 kg of CO2e to just 7 kg, and a new carbon utility analysis confirms it achieves these planetary benefits without compromising quality-adjusted life years (QALYs). For medical students, this is a critical and actionable insight: choosing AIR therapy with DPIs is one of the most effective immediate steps clinicians can take to decarbonize their practice, directly combating the irony of asthma treatments that contribute to the very environmental changes that worsen respiratory disease.