Topic timeline

40c

How reporting on this topic developed over time — coverage by day, outlet counts, and multi-source storylines where they exist.

← All coverage of 40c

Coverage evolution

What HappeningNow has tracked so far

Earliest shown: Jun 24
Latest update: Aug 13
Outlets: 3
Stories: 12

Not enough independent coverage yet to show how reporting developed. The facts below are direct observations from the tracked window.

Earliest in tracked window

Oldest report in the coverage window currently tracked for this topic.
Europe heatwave live: UK breaks temperature record for June as parts of France hit 40C – as it happened Guardian Climate · Jun 24, 2026
Latest update

Most recent tracked report from CleanTechnica.
Factcheck: How Nuclear, Gas, Wind, & Solar Power Are Affected During Heatwaves CleanTechnica · Aug 13, 2026

Chronological reports

12 reports in date order. Not enough independent coverage yet to show a development timeline.

Aug 13, 2026 Energy

Factcheck: How Nuclear, Gas, Wind, & Solar Power Are Affected During Heatwaves

CleanTechnica 66 views

Aug 3, 2026 Weather & Disasters

‘Stop all outdoor activities’: South Korea records its highest ever temperature

Guardian Climate 44 views

Jul 28, 2026 Global

Wildfires in south-west France flare up as region braces for new 40C heatwave

BBC 165 views

Jul 25, 2026 Weather & Disasters

Scorching US heatwave to hit 70 million people with third ‘heat dome’ in month

Guardian Climate 41 views

Jul 20, 2026 Weather & Disasters

‘My shirt was wringing’: National Express bus drivers speak out on 40C conditions

Guardian Climate 40 views

Jul 11, 2026 Weather & Disasters

‘Children were calling for their mummies’: UK pupils struggle in 40C-plus classrooms

Guardian Climate 36 views

Jun 29, 2026 Weather & Disasters

Dangerous temperatures forecast for parts of Europe as heatwave moves east

Guardian Climate 44 views

Jun 28, 2026 Weather & Disasters

Germany, Czechia, Poland and Hungary swelter through hottest days on record

Guardian Climate 60 views

Jun 27, 2026 Weather & Disasters

Germany and Italy swelter in heatwave as records tumble across Europe

Guardian Climate 45 views

Jun 27, 2026 Weather & Disasters

Europe heatwave live: Germany braced for temperatures ‘well over 40C’; extreme heat warnings for England

Guardian Climate 41 views

Jun 25, 2026 Weather & Disasters

Tarmac playgrounds and windows that don’t open: why hot spells turn our schools into heat traps | Harry Paticas

Guardian Climate 38 views

Jun 24, 2026 Weather & Disasters

Europe heatwave live: UK breaks temperature record for June as parts of France hit 40C – as it happened

Guardian Climate 46 views

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