# European heatwaves trigger wildfires and energy crises

> Live situation record from CLSTR: https://clstr.news/situations/austrian-urban-greening-to-combat-heat
> Updated: 2026-07-31T09:22:19.000Z. Sources: 172. Developments: 6.

The June–July 2026 heatwave produced over 10,000 excess deaths across 27 Western European nations. In the UK, the UK Health Security Agency (UKHSA) estimated 2,877 excess deaths linked to the May and June heatwaves, nearly doubling the total recorded for 2025. Discrepancies have emerged regarding UK mortality data, with reports disputing Met Office claims due to unpublished methodologies. By August 2026, extreme weather escalated into widespread disruptions. Severe wildfires in France have scorched over 300,000 acres, threatening the Bordeaux wine industry, while mass evacuations have been reported in France and Spain. Low water levels in the Danube, Rhine, Po, and Loire have strained energy production, forcing reduced output or shutdowns of nuclear and coal-fired plants, while Norwegian hydropower reservoirs reached 30-year lows. The United Kingdom is on track for its hottest summer on record, with a mean meteorological summer temperature (June 1 to August 10) of 16.48°C, 1.88°C above the 1991-2020 average. This period includes the country’s fifth heatwave of the year, with temperatures reaching 38°C in some areas. The heat is accompanied by severe drought affecting approximately 45 million people, with 27 million facing water use restrictions. Southern Water has applied for a drought order to ban non-essential water use. Wildfire risks have escalated, with 1,017 blazes recorded in England and Wales so far this year, matching previous record totals. The Royal College of Nursing has warned that extreme temperatures are making hospitals and care homes ‘impossible and inhumane’ to work in, reporting that nursing staff have collapsed due to heat exhaustion. Prime Minister Andy Burnham has chaired an emergency Cobra meeting to address the crisis. As of mid-August, at least 92 million people in countries including France, Italy, and Spain are expected to face temperatures exceeding 35°C.

## Timeline

### 2026-07-31: UK health agency reports record heat‑related deaths in May‑June 2026

UKHSA reports 2,877 excess deaths during May‑June 2026 heatwaves, warning of a record‑high death toll and widespread drought across England.

6 sources. https://clstr.news/cluster/uk-health-agency-reports-record-heatrelated-deaths-in-mayjune-2026

### 2026-07-12: UK heatwave linked to 2,700 excess deaths across Britain

Heatwaves in May‑June 2026 caused about 2,700 excess deaths in England and Wales, with Europe seeing over 10,000 excess deaths, prompting public‑health warnings and calls for adaptation.

154 sources. https://clstr.news/cluster/austria-urged-to-boost-heat-protection-after-449-deaths

### 2026-07-04: Austrian Minister Totschnig Faces Greenpeace Call for €1 Billion Urban Renaturation Funding

Greenpeace named Steyr and Ebreichsdorf Austria's first “NaturStadt‑Pioniere” and urged Minister Norbert Totschnig to allocate €1 billion for urban de‑paving, tree planting and green corridors to combat heat‑dr

5 sources. https://clstr.news/cluster/austrian-minister-totschnig-faces-greenpeace-call-for-1-billion-urban-renaturation-funding

### 2026-06-25: Austria's Greens demand new heat‑protection rental law amid soaring temperatures

Austria's heatwave prompts Green Party Nina Tomaselli to push a stalled climate‑friendly rental law, demanding heat‑protection measures for tenants.

4 sources. https://clstr.news/cluster/austrias-greens-demand-new-heatprotection-rental-law-amid-soaring-temperatures

### 2026-06-24: Austria urges greening of cities and large parking lots to combat heat

Greenpeace and mobility group VCÖ urge Austrian cities and large parking lots to increase green space, citing severe heat days and temperatures up to 60 °C.

3 sources. https://clstr.news/cluster/austria-urges-greening-of-cities-and-large-parking-lots-to-combat-heat

### 2026-06-19: Austrian towns Lustenau and St. Johann highlighted in Greenpeace green‑space study

Greenpeace study finds Lustenau leads Austria in green space (55.3%) while St. Johann records most heat days (22), urging cities to boost urban greenery.

2 sources. https://clstr.news/cluster/austrian-towns-lustenau-and-st-johann-highlighted-in-greenpeace-greenspace-study

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Cite as: European heatwaves trigger wildfires and energy crises. CLSTR, https://clstr.news/situations/austrian-urban-greening-to-combat-heat