Key Takeaways
- Indians faced nearly 20 heatwave days in 2024, with 6.6 directly linked to climate change
- Heat exposure caused 247 billion lost labor hours and $194 billion income loss
- Heat-related deaths increased 23% since 1990s, reaching 546,000 annually
- Air pollution from multiple sources caused millions of deaths across India
A groundbreaking Lancet report reveals the devastating health and economic impacts of climate change in India, with heatwaves and air pollution causing massive labor losses and hundreds of thousands of deaths.
Unprecedented Heatwave Impact
According to the 2025 Lancet Countdown report, people in India experienced an average of 19.8 heatwave days in 2024. Climate change directly contributed to 6.6 of these extreme heat days that wouldn’t have occurred otherwise.
The extreme heat resulted in staggering economic losses – 247 billion potential labor hours lost, equivalent to nearly 420 hours per person. This represents a 124% increase compared to 1990-1999 levels.
Sector-Wise Labor Losses
The agriculture sector bore the brunt of heat impacts, accounting for 66% of labor hour losses. Construction workers suffered 20% of the losses, highlighting how outdoor occupations are most vulnerable to rising temperatures.
Reduced labor capacity due to extreme heat potentially cost India $194 billion in lost income during 2024 alone.
Global Health Crisis
The comprehensive assessment involved 128 experts from 71 institutions worldwide. The report warns that 12 of 20 health threat indicators have reached unprecedented levels globally.
Heat-related deaths have surged by 23% since the 1990s, now claiming 546,000 lives annually. Meanwhile, dengue transmission potential has increased by up to 49% globally since the 1950s.
Air Pollution Toll
The report reveals alarming pollution statistics for India. Between 2020-2024, forest fire-related PM2.5 pollution caused approximately 10,200 deaths per year – a 28% increase from 2003-2012 levels.
Human-caused PM2.5 pollution was responsible for over 17 lakh deaths in 2022, representing a 38% increase since 2010. Fossil fuels alone contributed to 44% of these pollution-related fatalities.
Road transport using petrol caused 2.69 lakh deaths, underscoring the severe health impacts of vehicle emissions. The findings come ahead of where global climate action will be discussed.
