Energy News Today — September 30, 2026
World’s seas heated by a record 23 zettajoules last year and more — today's energy signal.
The world's oceans are bearing the brunt of the climate crisis, with new data showing that they absorbed a record amount of heat last year. The world's seas were heated by a record 23 zettajoules, which is equivalent to 40 times the annual global energy use. This alarming trend is a stark reminder of the devastating impact of human activities on the planet's ecosystems.
As the effects of climate change intensify, the consequences are being felt by communities around the world. In the US, households are struggling to cope with the rising temperatures and the associated surge in electricity shutoffs. With record hot summers becoming the new norm, vulnerable populations are being disproportionately affected, highlighting the urgent need for equitable and sustainable solutions to address the climate crisis. Today's headlines highlight the far-reaching implications of climate change and the need for immediate action to mitigate its effects.
Today's signal:
• World’s seas heated by a record 23 zettajoules last year (theguardian.com)
• World’s oceans absorbed record heat equal to 40 times annual global energy use (theguardian.com)
• ‘It’s just cruel’: US households hit by surge in electricity shutoffs amid record hot summer (theguardian.com)