Extreme heat has quietly become one of the more overlooked risks of a warming planet, and a new survey is putting real numbers behind what maternal health workers have been seeing on the ground. Commissioned by the global health foundation Wellcome, the survey polled 1,001 healthcare professionals, including obstetricians, gynaecologists, doctors, midwives, and nurses, across India, Australia, Brazil, the UK, and Zimbabwe between mid-September and early October. The findings paint a picture that’s hard to brush aside.
What the Survey Actually Found
The headline number is stark enough on its own: 73% of respondents reported an increase in heat-related cases or complications affecting pregnant women over the past five years, while 76% said the same about complications affecting foetal or newborn health. Dig a little deeper and the picture gets even more concerning. Ninety-eight per cent of respondents said they had personally cared for a pregnant woman whose health they believed had been adversely affected by extreme heat, and 99% said the same about a newborn.
On specific complications, around 23% of healthcare workers reported pregnancy complications requiring extra monitoring or treatment that they linked to heat exposure. Roughly 21% said they’d encountered severe maternal illness requiring hospital care, and close to 18% reported pregnancy loss or stillbirth in cases where, in their professional judgment, extreme heat had played a contributing role. Among newborns, 34% of respondents reported low birth weight or restricted growth, 36% reported dehydration or heat-related illness, and 33% noted difficulties with feeding, breathing, or temperature regulation.
A Problem That Doesn’t Hit Everyone Equally
One of the more telling parts of the survey is how unevenly these risks are distributed. Zimbabwean health workers reported some of the sharpest increases of anyone surveyed, with 85% saying heat-related pregnancy complications had risen over the past five years. That gap reflects a broader pattern climate researchers have flagged for years: the countries and communities with the least capacity to adapt, whether that’s reliable electricity, cooling infrastructure, or consistent access to clean water, tend to absorb the worst of climate-driven health impacts first.
Speaking at the pre-COP31 summit in Nadi, Fiji, UN climate chief Simon Stiell didn’t mince words about what the data represents. He described pregnancy and birth as a new fault line in the global climate crisis, one that’s potentially fatal, and stressed that the risks involved are not distributed equally across the world. His comments echoed warnings from the Wellcome Trust’s chair, former Australian Prime Minister Julia Gillard, who put it plainly: extreme heat is an invisible killer, and pregnant women can’t be allowed to become invisible along with it.
Why This Is Happening Now
Part of what makes this survey land differently than a typical climate report is the timing. Around 33 countries, spanning from Western Europe through the Sahel to Central America, recorded their hottest July on record this year, based on Copernicus climate data. That’s not an isolated spike; it’s part of a broader trend of consecutive record-breaking heat years that climate researchers have been tracking for over a decade. For pregnant women, whose bodies are already working harder to regulate temperature and circulate blood for two, that kind of sustained extreme heat isn’t a minor discomfort; it’s a measurable physiological strain that shows up in clinical outcomes.
Discover More Stories Worth Your Time
Explore Can River Diplomacy Survive?
Uncover Why Cyber Scams Growing?
Discover Tarique’s Key UNGA Priorities?
See Why Kushtia’s Raft Race?
Explore Hilsa’s Delhi Cultural Spotlight?
Learn how Bangladeshi hilsa and cultural heritage took centre stage at a festival in Delhi.
What Healthcare Workers Are Asking For
The survey doesn’t stop at documenting the problem; it also captures what the people treating these patients say they actually need. Respondents pointed to a mix of practical and systemic fixes, clearer medical guidance specific to heat exposure during pregnancy, better training for frontline healthcare workers, early heat-alert systems, safer and better-cooled healthcare facilities, and more reliable access to water and electricity in the regions that need it most. Stiell echoed this list in his remarks, framing it less as a wish list and more as the minimum groundwork needed for health systems to respond before extreme heat events hit rather than scrambling after the fact.
The Bigger Picture
What this survey really does is connect two things that often get discussed separately, climate change and maternal health, and show just how directly they’re now intersecting in hospitals and clinics around the world. For years, the conversation around extreme heat and health has focused heavily on elderly populations and outdoor workers, and for good reason: those risks are real and well-documented. But this data suggests pregnant women and newborns deserve to be treated as a distinct, high-priority group in how health systems plan for a hotter world, not an afterthought folded into general heat-response guidance.
For expecting mothers reading this, the takeaway isn’t to panic; it’s to take heat seriously as a genuine health factor during pregnancy, the same way diet or prenatal checkups are taken seriously, and to loop in a doctor or midwife about hydration, rest, and warning signs if you live somewhere that regularly hits extreme temperatures.
FAQ
What exactly did the survey measure?
It surveyed 1,001 maternal healthcare professionals across India, Australia, Brazil, the UK, and Zimbabwe about changes they’ve observed in heat-related pregnancy and newborn complications over the past five years.
What kind of complications are being linked to extreme heat?
Reported issues include low birth weight, restricted foetal growth, dehydration and heat illness in newborns, severe maternal illness, and in some cases pregnancy loss or stillbirth, based on healthcare workers’ clinical judgment.
Which country reported the sharpest increase in heat-related pregnancy complications?
Zimbabwe, where 85% of surveyed healthcare workers reported an increase over the past five years, the highest among the five countries surveyed.
What are experts recommending in response?
Clearer medical guidance on heat exposure during pregnancy, better training for healthcare workers, early heat-alert systems, improved cooling in healthcare facilities, and more reliable water and electricity access in vulnerable regions.
