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New Delhi, May 10 – A landmark study published in the journal Nature has found that more than half of the children born in 2020-approximately 62 million worldwide-are likely to experience extreme and unprecedented heatwaves during their lifetimes, a dramatic increase from just 16% of those born in 1960. The research underscores a stark generational divide in climate risk, even if global warming is limited to the internationally agreed threshold of 1.5°C above pre-industrial levels.
Generational Divide in Climate Extremes
The study, conducted by an international team of climate scientists, analyzed demographic trends alongside advanced climate projections to assess how exposure to extreme weather events has shifted across generations. The findings reveal that the younger a person is, the greater their risk of encountering not just heatwaves, but also river floods, droughts, wildfires, and crop failures.
Children born in tropical regions are projected to be the most severely affected, facing a disproportionate burden of climate extremes due to their geographical vulnerability. In fact, the research shows that if global temperatures rise to 3.5°C by the end of the century, as many as 92% of children born in 2020 could experience unprecedented heatwave exposure in their lifetimes-nearly double the risk under the 1.5°C scenario.
Magnitude of the Threat
The study defines “unprecedented lifetime exposure” as experiencing a number of extreme events that would have had less than a 1-in-10,000 chance of occurring without human-induced climate change. For example, a child born in Brussels in 2020 is expected to face 11 major heatwaves in their lifetime, compared to just three in a pre-industrial climate.
Beyond heatwaves, the analysis found that children born in 2020 will, on average, experience:
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6.8 times more heatwaves
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2.8 times more river floods
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2.6 times more droughts
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2.8 times more crop failures
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Twice as many wildfires
compared to someone born in 1960.
Call for Urgent Action
Researchers warn that these escalating risks could have severe consequences for health, livelihoods, and global economic stability, particularly in low-income and high-vulnerability regions. They emphasize that limiting global warming to 1.5°C could spare millions of children from the worst impacts, reducing additional lifetime exposure to heatwaves by 45% and to other climate extremes by up to 39%.
Lead author Luke Grant noted, “The results are clear-the younger you are, the higher the chances you will experience unprecedented exposure to climate extremes in your lifetime. These findings are a call for urgent global action to curb emissions and protect the future of young generations”.
Disclaimer:
This article is based on predictive modeling and projections published in peer-reviewed scientific research. Actual future climate impacts may vary depending on global mitigation efforts and unforeseen environmental, technological, or societal changes.
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