Climate change continues to wreak havoc on the planet, leading to a surge in deaths from heat and air pollution, according to a new report published in The Lancet Countdown on Health and Climate Change.
The report reveals alarming statistics, showing a 23% increase in heat-related deaths since the 1990s, resulting in 546,000 lives lost annually worldwide. Additionally, a record 154,000 deaths were attributed to air pollution from wildfire smoke in 2024 alone. The burning of fossil fuels like gasoline and coal also contributes to 2.5 million deaths per year due to air pollution.
This increase in deaths comes as some governments, notably the United States, have scaled back on their climate commitments. Lead researcher Marina Romanello, executive director of The Lancet Countdown, emphasizes the urgent need to address the devastating health impacts of climate change.
The year 2024 marked the hottest on record, with the average person experiencing 16 additional health-threatening hot days due to climate change. In the U.S., people faced an average of 14 heat wave days, 10 of which were directly linked to climate change. The country also witnessed a 49% increase in deaths from wildfire smoke compared to the previous decade.
Droughts and heat waves have led to crop failures, causing food insecurity for millions around the globe. In the U.S., nearly a third of the land experienced extreme drought conditions annually from 2020 to 2024, a significant increase from historical weather patterns.
Despite these alarming trends, the report highlights the continued expansion of fossil fuel production by major companies. The top 100 oil and gas companies have ramped up production, while lenders to the fossil fuel sector invested a record $611 billion in 2024.
Professor Nadia Ameli, a climate finance expert, warns of the dire consequences of maintaining reliance on fossil fuels. She emphasizes that failing to address climate change will overwhelm health systems, infrastructure, and disaster response capabilities, putting billions of lives at risk.
The report underscores the urgent need for decisive action to mitigate the impacts of climate change and transition to sustainable, renewable energy sources. It serves as a stark reminder that the health and well-being of the planet’s inhabitants are at stake if immediate steps are not taken to combat climate change.
In conclusion, the findings of the report serve as a wake-up call for governments, industries, and individuals to prioritize climate action and work towards a sustainable future for all. Failure to do so will only exacerbate the health crisis caused by climate change, with devastating consequences for generations to come.

