In a Guardian opinion piece, Bill McGuire argues that the Nepal and Tibet disaster is not a one-off tragedy but a preview of what a warming planet has in store. McGuire, professor emeritus of geophysical and climate hazards at UCL, writes that the ground beneath us is growing twitchier, and that global heating is the reason.
He points to a pattern already forming. A 2021 flood tore through valleys in Uttarakhand, India, damaging two hydroelectric plants and killing about 200 people. In 2025, a landslide in an Alaskan fjord threw up a wave 500 metres high in waters used by cruise ships. Months before that, a glacier collapse in Switzerland buried most of the village of Blatten. All four events, McGuire says, involve the cryosphere, the planet’s frozen water, and all of it is receding fast.
He explains that the mechanics are simple enough. Retreating glaciers expose unstable ground. Thawing permafrost loosens mountain faces. Meltwater pools into lakes that can breach and empty into valleys below. McGuire notes that the Himalayan region alone holds thousands of glacial lakes, roughly 200 of which are considered a threat to the communities downhill.
His wider point is that the earth is remarkably sensitive to small nudges. In Alaska, ice loss has eased pressure on faults and helped along earthquake activity. He expects something similar in Greenland, where kilometres of ice have kept faults locked for millennia, and in Iceland, where a lighter ice load may stir the volcanoes beneath.
McGuire closes with a warning that global heating will leave no part of the planet untouched, and that Nepal is a lesson we ignore at our peril.
Acknowledgement: This summary was generated using AI writing tools as part of my AI exploration process. For more information, check out the original article listed below.