Weather behind past heat waves could return far deadlier
Peer-Reviewed Publication
Updates every hour. Last Updated: 29-Nov-2025 21:11 ET (30-Nov-2025 02:11 GMT/UTC)
An international team of scientists, including a senior researcher at Heriot-Watt University in Edinburgh, Scotland, has uncovered new evidence of ancient wildfires that reshapes our understanding of Earth’s turbulent Early Triassic epoch, about 250 million years ago.
In the summer of 2022, 20 islands in the Maldives were flooded when a distant swell event in the Indian Ocean coincided with an extremely high tide level. Now researchers from the University of Plymouth (UK) and Deltares, a not-for-profit applied research institute in the Netherlands, have warned that future predicted rises in sea levels - coupled with an increase in extreme weather events and wave conditions - could result in such flooding becoming far more common, perhaps happening every two to three years by around 2050.
Rainfall and flooding frequently disrupt the lives of urban residents worldwide, posing significant public health risks. Mumbai, India - renowned for the ferocity of its monsoon season - stands as a stark example of the human toll that extreme urban flooding can exact. But despite the growing recognition and urgency of these hazards, the health impacts of rainfall remain poorly understood, and those of sea level rise are entirely unquantified. A recent study led by Princeton University and the University of Chicago takes a closer look at the intersection between climate change, hazards, and public health in Mumbai, finding that deaths caused by rainfall and rising sea levels are almost ten times higher than the official statistics suggest.
Emissions of the greenhouse gas methane from lakes and reservoirs risk doubling by the end of the century due to climate change according to a new study from Linköping University, Sweden, and NASA Ames Research Center in the US. This in turn could raise Earth’s temperature more than suggested by the UN climate panel IPCC’s current worst-case scenario.