All articles tagged with #heatwaves
August 2026 tied July 2023 as the hottest month on record at about 1.65°C above preindustrial levels, with record sea-surface temperatures. El Niño is set to intensify later this year, likely pushing heat and extremes higher as the climate crisis underpins the warming. Impacts include wildfires, crop losses, heat-related deaths, and rising prices, with calls for a rapid shift to clean energy and stronger climate resilience.
Provisional Met Office data show the UK's summer 2026 was the hottest on record since 1884, with a mean temperature of 16.5C and a peak 38.1C in London; June was the hottest on record, and scientists say the heatwaves were made about 130 times more likely by human-caused climate change. The heat contributed to thousands of excess deaths, drought, and wildfires across Europe, and authorities expect hotter, drier summers to continue. The period has fueled political debate over climate policy in the UK as officials warn this is the new normal under warming conditions.
A Science Advances study finds climate change adds at least one extra month of heat stress for about 560 million children under 10, with the Global South most affected, while a Southern California mom describes the daily challenges of staying cool, breastfeeding, and managing power outages during extreme heat.
Global sea-surface temperatures surged to a new high—nearly 70°F—likely the warmest in the Holocene and possibly since the last interglacial ~125,000 years ago, driven by a powerful El Niño. Widespread marine heat waves cover large swaths of the oceans (NOAA: ~42% of oceans), especially the Pacific, contributing to extreme weather including storms like Hurricane Lala and spikes in rainfall in the U.S. and heat in Europe.
Britain’s increasingly intense and earlier heatwaves are disrupting classrooms and exams, prompting calls for a national plan to adjust the school year or invest in climate-resilient schools, as research links high temperatures to reduced learning and performance.
Germany recorded roughly 14,000 heat-related deaths this summer according to the Robert Koch Institute, with about 9,600 deaths in one late-June week during temperatures above 40C. Spain and France also reported thousands of heat-related deaths, underscoring how heat amplifies pre-existing conditions rather than always being the direct cause. The data has spurred calls for stronger climate adaptation, including more air conditioning in hospitals and nursing homes and possible constitutional changes to enshrine climate protections.
A Stanford study finds older adults reach uncompensable heat stress at lower temperatures than younger people, meaning more people—especially those over 60 in lower-income regions—face dangerous heat for hundreds of hours annually as temperatures rise. The research urges urban cooling, cooling centers, broader access to air-conditioning, and sustained emissions reductions to limit long-term warming.
Extreme heat and drought across Europe have triggered an unprecedented farming crisis, with France reporting steep vegetable and cereal losses, Italy and Spain seeing broad crop and dairy declines, and governments pledging emergency aid as harvests and incomes sag by billions.
A Lancet Public Health study finds people aged 60 and over are at risk of uncompensable heat stress at lower temperatures than younger groups, meaning heatwaves will affect older adults more severely as global warming continues; with the global 60+ population projected to reach about 2.1 billion by 2050, many more older people—especially in lower-income countries—will face dangerous heat exposure, with risk rising from as little as 1.5C of warming and increasing with each additional degree.
Satellite imagery from Copernicus/Sentinel-2 shows Western Europe bearing the marks of record heat: shrinking Alpine glaciers, widespread wildfires, and rivers at historically low levels, with NDVI indicating stressed vegetation across France, the UK and western Germany; experts warn ongoing climate-change effects could worsen agriculture and energy cooling.
Romania shut down its only nuclear plant at Cernavodă after extremely low Danube water levels caused by a heatwave prevented adequate cooling; the second reactor was disconnected and isn’t expected to restart for about 10 days, leaving supply gaps that will be filled by solar, wind and imports as hydropower is constrained. Hungary’s Paks remains online for now, underscoring rising European water stress from climate change.
The 2025 State of the Climate report from the American Meteorological Society and NOAA warns that global warming is intensifying: oceans reached record-high temperatures for a third straight year, marine heatwaves covered about 87% of the world’s oceans, the Greenland Ice Sheet shed roughly 129 gigatons, surface albedo declined as land surfaces darkened and cloudiness fell, oceans absorbed about 90% of the excess heat and continued to acidify and lose oxygen. Fossil-fuel emissions remain the primary driver of warming and extreme weather, underscoring the need for resilience and stronger climate policies.
Global oceans reached their hottest July on record, with an average sea-surface temperature of 20.96C outside the polar regions—beating 2023’s high and about 1.47C above pre-industrial levels—partly driven by developing El Niño conditions. Western Europe also had its hottest June–July, fueling heatwaves and drought that stressed water supplies and spurred wildfires, while the UK faces lower river levels and ongoing heat and drought risks. Warming seas contribute to sea-level rise through thermal expansion and amplify marine heatwaves, underscoring climate-change impacts and the risk of more extreme conditions ahead.
An interview with explorer Christian Clot explains that extreme heat impairs physiology and cognitive function, with effects emerging when peak temperatures reach about 32°C and daily averages stay around 24°C. The piece cites France’s 2003 heatwave with roughly 15,000 excess deaths and notes a late June heatwave estimated to cause about 5,000 additional deaths, with global heat-related mortality around 500,000 annually, underscoring the need to prepare for increasingly frequent heatwaves.
A rapidly intensifying El Niño is forecast to dominate global weather, boosting heatwaves, droughts and floods worldwide as Pacific temperatures soar and climate change amplifies impacts; the UN and WMO warn of near-universal warming and urge an immediate halt to new coal, oil and gas projects, calling on governments and aid agencies to turn warnings into action to protect vulnerable communities.