For how we live.
A Chinese birth cohort of 1,278 pairs found higher prenatal temperatures and heatwaves — especially in the second trimester — tracked with higher creatinine and urea in early childhood.
A 14-year hourly analysis of the heat index finds a rising trend and a 2025 that set records, with a 'feels-like' temperature reaching 52C as early as 7am on some days.
One study screened 916,904 acute-care visits to find which diagnoses actually rise with extreme heat. Another, in Phoenix, asks a prior question: who calls for help at all.
Two papers landed the same day. An attribution analysis puts children aged 0–9 at roughly three times the added humid-heat exposure of people in their sixties; a German cohort counts the emergency visits.
Each 1 degree C rise in average maximum wet bulb globe temperature across pregnancy was associated with 64% higher odds of a higher stress category — an association, in one cohort, with no mechanism established.
A players' association says arm injuries more than doubled this year. A 46-year analysis of tour matches finds a slower, steadier rise. Both can be true, and neither settles the calendar question.
FIFA gave every World Cup match a mandatory three-minute break and the ATP set its first WBGT thresholds. Physiologists who study cooling say three minutes in direct sun does little to core temperature.
England's A&E departments handled 2.5 million attendances in July alone. Nursing staff say wards without air conditioning are becoming an occupational-safety problem, not just a patient-comfort one.
Twenty-three studies, mostly from the US and China, found mental health risk rising with temperature. Nowhere in the Pacific or Africa was represented.
More than 2,700 people died in England and Wales during the May and June heatwaves. An attribution study assigns roughly 42% of those deaths to warming.
The scrotal-cooling theory is sound and the semen findings are real. A 2026 review found the prospective data show no difference in pregnancy outcomes by underwear type.
Researchers modelled 854 European cities under the climate that exists and the one that would have existed without human warming. The attributable share rose from 45% to 64%.
A national study built for Australia's first Climate Risk Assessment separates the two exposures across ED, inpatient, GP and prescription data. They do not act on the health system the same way.
Maricopa County runs some of the most detailed heat mortality surveillance in the US. A distributed lag model applied to the same five years put the toll far higher — and the gap is the method, not a scandal.
An analysis of global temperature data from 1950 to 2024 finds the share of the world's population facing dangerous heat-stress days has climbed sharply since the 1970s, summarized this month in JAMA.
A national case-crossover study of 236,260 chronic kidney disease deaths finds women, over-65s and people in cooler regions most affected — and projects the burden nearly quadrupling by the 2090s.
As the 2026 World Cup opens, researchers point to last year's Club World Cup as a preview: 31 of 57 matches were played at heat levels guidelines say should have stopped play.
A global estimate across 8,919 urban areas finds both numbers are true at once — and that the cooling lands hardest in the places that need it least.
An analysis of nearly 30 years of confirmed heat deaths finds many occurred well under standard alert thresholds, and that humidity-based measures may track risk more consistently.
An analysis of insurance claims from 2016 to 2023 found extreme heat consistently drove up emergency department use and cost across commercial, Medicaid, and Medicare Advantage plans.
A study across nine facilities in Makkah recorded 1,576 cases of heat exhaustion or heatstroke and a 4.9% mortality rate — in a region where heat-health research remains remarkably thin.
A meta-analysis spanning two decades of research found extreme cold carried a higher relative risk of death than extreme heat or heatwaves — even as warming shifts public attention toward summer temperatures.
A 14-year national analysis finds temperature-related death rates rising fastest in the group that started highest — and the same pattern in cold deaths, which fell for everyone else.
A rapid attribution study finds human-caused warming made this month's record Southwest heat wave far more likely, and doctors warn the early timing caught people unacclimatized.
A Utah case-crossover analysis found heat stress and pollution interacting synergistically in the warm season. A Louisiana crisis-hotline study traced hot nights to sleep disruption and unmet basic needs.
A scoping review found 36 studies on heat and health, only 13 with Gauteng data. Rather than wait for more, the authors borrowed designs from Victoria, Maharashtra and Khyber Pakhtunkhwa.
Play was suspended on outside courts on Saturday when the tournament's five-point Heat Stress Scale maxed out. A ball kid collapsed during a match the same day. The threshold is set on physiology, not air temperature.
WMO puts 2025 at 1.44°C above pre-industrial, second or third warmest depending on the dataset. The 2023–2025 mean of 1.48°C is the figure that describes exposure.
A year of wearable data from 76 subsistence farmers shows adaptation happening in real time. The women in the study had less room to slow down, and their strain readings show it.
Twelve years of English primary care records put a price on weather. The heat effect is loud and short; the cold effect is quiet, cumulative, and much larger.
Across 11 surveillance sites in sub-Saharan Africa, nighttime heatwave mortality risk rose between 2005-2010 and 2011-2015 — the opposite of the adaptation trend reported in wealthy countries.
The 2025 Lancet Countdown Latin America report tracks 41 indicators across 17 countries. Heat-related deaths are up 103%, and fewer than half the region's governments have finished a vulnerability assessment.
A 43-year analysis at hourly resolution finds a 3.3% rise in average heat stress exposure duration across districts, with the change varying by time of day, season and region.
Researchers tested heat-mortality forecasts against the European summers of 2022 and 2023. The skill pattern is not the one a warning system designer would have guessed.
A 47-prefecture analysis of a decade of heatstroke mortality finds the alert level set at 33C misses almost all of the deaths a warning could plausibly prevent. About 31C would halve them.
A 50-year attribution study separates two trends that usually get modelled as one: rising temperatures and a population that has become less likely to die in them.
A nine-year case time-series across every municipality finds both ends of the temperature range raise mortality risk on a Caribbean island, with the burden spread unevenly across towns.
The causes recorded do not look like a textbook heat event: nonspecific findings, nervous system disease and mental disorders led the excess, and deaths at home rose 64%.
A 55-expert consensus sets out how to attribute health outcomes to climate change. Its sharpest recommendation is against the fraction-of-attributable-risk method that many studies still use.