Climate change has far-reaching impacts on human health and well-being. Changing temperature and rainfall patterns impact crop yield, food and water security, and nutrition. The increased frequency and intensity of extreme events can cause not only injury, but also increase the risk of water-borne diseases (diarrheal disease, Hepatitis A and E, bacterial diseases such as cholera), diseases associated with crowding (measles, meningitis, acute respiratory infections) and vector-borne diseases (malaria, dengue), as well as psychological and emotional distress related to traumatic events.
The World Health Organization (WHO) estimates that climate change will cause an additional 250,000 deaths each year between 2030 and 2050, just considering risks from malnutrition, malaria, diarrhea and heat stress.
Health impacts from climate change are exacerbated in countries where health systems already struggle to manage existing health risks, and capacity to adapt to additional climate change-related health risks is limited.
Only through critical partnerships between governments, civil society, UN agencies, and global environment and health organizations, support can be provided to countries in responding to the health impacts of climate variability and change by working at the nexus of health, environmental sustainability and climate change, disaster risk reduction, gender equality, and poverty alleviation.