Build Climate Resilient Health System

Climate change is a pressing global issue that not only affects the environment but also poses significant threats to human health. Nepal's unique geographical location and fragile ecosystem make it susceptible to various climate-related health risks. Rising temperatures, changing rainfall patterns, increased frequency of extreme weather events, and the melting of glaciers threaten public health. These changes can lead to the spread of vector-borne diseases, waterborne illnesses, malnutrition, and mental health issues, among others.

One of the most immediate and direct impacts of climate change on human health is the rise in heat-related illnesses. As temperatures continue to soar, heat waves become more frequent and intense, leading to heat exhaustion, heatstroke, and even death. The elderly, children, and individuals with pre-existing health conditions, are at high risk. Heat-related illnesses can strain healthcare systems, increase hospital admissions, and place additional burdens on public health resources.

Respiratory problems

Climate change also exacerbates respiratory problems, including asthma, allergies, and other respirational diseases. As temperatures rise, the concentration of ground-level ozone and air pollutants increases, leading to poor air quality. This can trigger respiratory symptoms, worsen existing conditions, and increase the risk of respiratory infections. Additionally, the spread of allergenic plants and longer pollen seasons due to changing climate patterns further contribute to respiratory health issues.

Climate change significantly impacts the distribution and prevalence of vector-borne diseases, such as malaria, dengue fever, and Lyme disease. Rising temperatures and altered precipitation patterns create favourable conditions for disease-carrying vectors like mosquitoes and ticks to thrive and expand their habitats. This leads to an increased risk of transmission and the geographical spread of these diseases. Regions previously unaffected by such diseases may become vulnerable, straining healthcare systems and requiring additional resources for prevention and treatment.

Climate change also has profound effects on mental health. The stress and anxiety associated with extreme weather events, displacement, and loss of livelihoods can lead to increased rates of depression, post-traumatic stress disorder (PTSD), and other mental health disorders. The loss of homes, communities, and natural landscapes due to climate-related disasters can disrupt social support systems, further exacerbating mental health issues. Addressing the mental health impacts of climate change is crucial for building resilient communities and ensuring the well-being of individuals affected by these challenges.

Climate change disrupts agricultural systems, leading to reduced crop yields, food shortages, and increased food prices. Additionally, changing precipitation patterns can result in droughts or floods, affecting water availability and quality. Food and water insecurity contribute to malnutrition, compromised immune systems, and the spread of waterborne diseases. The most vulnerable populations, particularly in developing countries, bear the brunt of these impacts, further exacerbating existing health disparities.

Nepal's health infrastructure is already strained, and climate change exacerbates the situation. Limited access to healthcare facilities, especially in remote areas, hampers the delivery of essential services during climate-related emergencies. The health system in Nepal lacks adequate preparedness to deal with climate-related health risks. There is a need to enhance early warning systems, improve disaster response mechanisms, and strengthen the capacity of healthcare professionals to address climate-related health challenges effectively.

Certain groups, such as women, children, the elderly, and marginalised communities, are more vulnerable to climate-related health risks. Addressing the specific needs of these populations is crucial to ensure equitable access to healthcare services and reduce health disparities. Investments should be made to improve healthcare infrastructure, especially in remote and vulnerable areas. This includes establishing well-equipped health centres, upgrading existing facilities, and ensuring a sufficient supply of essential medicines and equipment.

Developing robust early warning systems, conducting regular risk assessments, and implementing climate-resilient healthcare practices are essential. Training healthcare professionals on climate-related health risks and disaster response can significantly improve preparedness. Encouraging sustainable and climate-resilient practices in the health sector can contribute to reducing the carbon footprint and minimising the impacts of climate change. This includes adopting renewable energy sources, improving waste management, and promoting eco-friendly healthcare practices.

Collaboration

A climate-sensitive health system can build resilience within communities, enabling them to better cope with climate-related health challenges. This includes strengthening community-based healthcare initiatives, promoting health education, and fostering community participation in disaster preparedness and response. Integrating climate change adaptation and mitigation strategies into the health sector can contribute to sustainable development. By reducing greenhouse gas emissions, promoting renewable energy, and adopting eco-friendly practices, the health system can become a role model for other sectors.

The effects of climate change on human health are extensive and wide-ranging. Urgent action is needed to mitigate climate change, adapt to its effects, and protect human health. This requires international cooperation, sustainable practices, investment in healthcare infrastructure, and prioritising the well-being of vulnerable populations. By addressing the health impacts of climate change, we can build a healthier and more resilient future for all. A climate-sensitive health system is crucial for Nepal to effectively address the health risks associated with climate change. By investing in infrastructure, enhancing preparedness, and promoting sustainable practices, Nepal can build a resilient health system that protects its population and contributes to sustainable development. It is essential for policymakers, healthcare professionals, and communities to collaborate and prioritize climate-sensitive health systems to secure a healthier and more sustainable future for Nepal.

(Dr. Lohani is the clinical director at the Nepal Drug and Poison Information Centre. lohanis@gmail.com)