environment
In 2025, the world's oceans took in a record amount of heat for the eighth consecutive year. This marked another escalation in marine warming trends tracked since 2018. The heat absorbed was equivalent to the energy needed to boil 2 billion Olympic swimming pools.
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Global greenhouse gas emissions reached a new high in 2024, signaling the planet's approach to an environmental tipping point. Current coral bleaching events serve as a severe climate warning, amid ongoing rises in emissions despite scientific calls for reductions.
Researchers have recorded temperatures as high as 42 Celsius in London Underground stations amid rising global heat. Jonathan Paul, a scientist at Royal Holloway, University of London, measures these conditions using a thermometer-equipped smartphone. Underground commuters face stifling heat with no easy escape.
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A coalition of climate groups has released a report indicating that efforts to combat climate change are advancing too slowly across key metrics. In some areas, progress is even regressing.