An underestimated issue
Climate change and disease
Climate change makes people ill: through heat, hunger, polluted water and diseases carried by mosquitoes. The poorest are hit hardest – often the very people who are going hungry today.
Today – every year
546,000deaths from heat every yearLancet Countdown 2025
124 mmore people without secure food – because of drought and heatwavesLancet Countdown 2025, figure for 2023
12 mdengue cases in just eight months of 2024 – almost twice as many as in all of 2023WHO 2024
CHF 1.1 tndamage per year from heat alone: lost work and deathsLancet Countdown 2025, USD 1.35 tn
If nothing changes
Additional health impacts of climate change, counted from 2024
Additional deaths
2033: around 5 m
2050: 14.5 m
Healthy life years lost
2033: around 0.7 bn
2050: over 2 bn
Economic damage
2033: around CHF 3.6 tn
2050: around CHF 10.3 tn
From 2030: 250,000 a year
That is how many additional deaths WHO expects every year – from malnutrition, malaria, diarrhoea and heat.
5 billion people
will be at risk of dengue and related diseases by 2050 – today it is around 4 billion (WHO).
CHF 0.9 tn
in extra costs for health systems by 2050 – money that the poorest countries do not have.
Sources: Lancet Countdown 2025; WHO; World Economic Forum with Oliver Wyman, “Quantifying the Impact of Climate Change on Human Health” (2024). Figures for 2033 are linear projections by MISSION 2033 from the figures for 2050. Conversion: USD 1 = CHF 0.82.
MISSION 2033 takes action
Health is part of the mission
- Clean water prevents diarrhoeal disease, especially among children.
- Secure food prevents the malnutrition that makes people vulnerable to disease.
- More rain and clouds ease heatwaves and drought.
- Clean air indoors and outdoors protects the airways and lowers the risk of pandemics.
- Health programmes with local doctors measure what the mission achieves.
HealthDr Youri Lavinski
A physician with many years of experience in the United States and Germany, he is MISSION 2033’s expert on climate change and health. He brings together medicine, prevention and the health programmes in the project regions.