The deluge capped a summer of extreme climate events, from deadly heatwaves to wildfires. We must take action now

For millennia, the high peaks of the Himalayas were held together by an invisible, frozen cement – permafrost and glacial ice that bound ancient rock into seemingly unshakable fortresses. But as the planet continues to warm, this alpine glue is liquefying.

The glacial collapse and deluge in Nepal and Tibet was not a freak weather event; it was the structural failure of a mountain itself, nature’s latest commentary on the deadly consequences of human-caused planetary warming. And it was the exclamation point on a summer of extremes, illustrating with a sole unnatural disaster the apocalyptic future that lies in store if we fail to take dramatic climate action.

Scientists say better early-warning system could have saved lives, as rescue efforts for the 4,500 still missing continue

Nepal last week turned down foreign ​involvement in general search and rescue but said it needed specialised services and advanced technological support in areas such as life-detecting machines, large refrigerators and pre-fabricated bridges.

Aid worth more than $42m has poured into the country and Nepal is now working with experts from other countries to help with rescue operations.

Who dreams of having a Euro summer now when staying in an ancient, uncooled building in the Old Town is like trying to sleep in a wood-fired pizza oven?

This week the Euro summer comes to an end – and so does a certain type of posting on Instagram.

Waiting at the bus stop in the grey winter dawn, a slanting rain soaking your trouser leg, you can warm yourself by scrolling your feed and seeing pictures of Australians enjoying a Euro summer. There it is again – azure Greek coves, plates of barbecued sardines, the yachts rented by the hour, and selfies on the balcony of some Paris Airbnb, drinking wine in the long, blue night.

In Alaska, the Himalayas, the Andes, Greenland, and perhaps also the Alps, deadly chain reactions are just waiting to be triggered

You may not have felt it, but the earth beneath our feet is getting twitchier, and global heating is to blame. As temperatures surge and climate breakdown accelerates, interactions between climate and geology are becoming ever more apparent – as marked by last week’s horrific events in Nepal and Tibet. We still have a bit of a blind spot when it comes to the idea that a changing climate can impact what scientists call the geosphere, but the evidence has long been incontestable.

In 2021, a similar deluge ripped through a series of mountain valleys in the Indian Himalayan state of Uttarakhand, severely damaging two hydroelectric power plants and taking about 200 lives. In August 2025, a colossal landslide in an Alaskan fjord created a 500-metre-high wave in an area frequented by cruise ships. A few months earlier, the collapse of part of a glacier in Switzerland’s Valais canton caused a debris-laden torrent that destroyed and buried most of the already evacuated village of Blatten.

Bill McGuire is professor emeritus of geophysical and climate hazards at UCL. His latest book is The Fate of the World – a History and Future of the Climate Crisis

Flash flooding in Arizona tourist destination was likely triggered by compounding climate factors, such as drought and warming in Pacific Ocean

• Remote Grand Canyon lodge hit by deadly flash flood boasts fabled history

A deadly flash flood in the Grand Canyon over the weekend was likely driven by a confluence of climate factors, including drought, wildfire scarring and warming temperatures in the Pacific Ocean that can supercharge storms.

At least two people have died, nearly 80 people were rescued and one remained unaccounted for after a surge of water and debris swept through the immensely popular tourist destination on Saturday, fueled by torrents of rain that hit the national park’s Bright Angel Creek area.

Flash flooding in Arizona tourist destination was likely triggered by compounding climate factors, such as drought and warming in Pacific Ocean

• Remote Grand Canyon lodge hit by deadly flash flood boasts fabled history

A deadly flash flood in the Grand Canyon over the weekend was likely driven by a confluence of climate factors, including drought, wildfire scarring and warming temperatures in the Pacific Ocean that can supercharge storms.

At least two people have died, nearly 80 people were rescued and one remained unaccounted for after a surge of water and debris swept through the immensely popular tourist destination on Saturday, fueled by torrents of rain that hit the national park’s Bright Angel Creek area.

Andy Burnham urged to seek consensus over response to extreme heat and forthcoming ‘super El Niño’

Andy Burnham should call a cross-party meeting to discuss the UK’s response to worsening extreme weather, including the forthcoming ‘super El Niño’, the Liberal Democrats have said.

The prime minister chaired a Cobra emergency meeting on the drought earlier this month but there has been little from the government on the wider threats posed by five successive heatwaves since May and expected global issues with food shortages and inflation.

Secretive state begins repairs on ageing facilities after being revealed as worst country for leaks of potent greenhouse gas

Turkmenistan has started plugging the mega-leaks of methane that spew from its ageing oil and gas facilities, the latest UN data shows, in a move hailed as a breakthrough.

Methane, also called natural or fossil gas, is a potent greenhouse gas. It traps 80 times more heat than carbon dioxide and causes 25% of global heating today. Stopping leaks can be quick and cheap and, because methane breaks down in the atmosphere far quicker than CO2, this has a rapid impact, with some experts calling it the climate “emergency brake”.

Secretive state begins repairs on ageing facilities after being revealed as worst country for leaks of potent greenhouse gas

Turkmenistan has started plugging the mega-leaks of methane that spew from its ageing oil and gas facilities, the latest UN data shows, in a move hailed as a breakthrough.

Methane, also called natural or fossil gas, is a potent greenhouse gas. It traps 80 times more heat than carbon dioxide and causes 25% of global heating today. Stopping leaks can be quick and cheap and, because methane breaks down in the atmosphere far quicker than CO2, this has a rapid impact, with some experts calling it the climate “emergency brake”.

Richer countries might have more resources to deal with catastrophe, but this problem grips the entire planet, however much leaders may want to deny it

Climate breakdown is happening on one Earth, but two different worlds. In one, its impacts increasingly encroach on everyday life; longer periods of discomfort and shorter periods of sharp pain. Endless, hotter summers, and within them sudden wildfires, evacuations, homes burned to cinders in a matter of hours. In another, catastrophe. This summer has been a snapshot of that split-screen. The hottest day on record in parts of Europe, and a wave of water, mud and ice in Nepal that so far has claimed more than 750 lives. Thousands of people are still missing.

The difference is also one of resources. The climate crisis has an economic cost, but some places can absorb it better than others. Responses to this summer of wildfires in Europe included a rapid scrambling by the French government to provide everything from tax breaks for businesses affected by the fires to relocation costs and aid to rebuild homes. The UK government had deployed almost £100m before the summer to strengthen wildfire resilience.

Climate change is the greatest threat to the Pacific, with fuel shortages and missile tests also on the agenda as Anthony Albanese heads to Palau

Anthony Albanese is in Palau this week for the annual Pacific Islands Forum and regional security is expected to top the agenda.

China is testing nuclear-capable missiles in the Pacific, prompting talk of a new regional agreement. The United States-Iran war has exposed a reliance on costly fossil fuels that is undermining Pacific economies.

The movement against datacenters is uniting Americans because they perfectly illustrate how a few individuals hold all the power to control decisions that affect our lives

Bryce Gustafson has been knocking on doors in Indiana for more than a decade. The lead organizer with Citizens Action Coalition (CAC), a consumer and environmental organization, he usually encounters a mix of reactions when he’s out canvassing; whatever issue he’s talking about, there’s always at least a few people on the other side. But at a recent festival in the rural town of Monrovia, Indiana, he was struck by an unusual spirit of unity.

He was there about a proposed datacenter, a 550-acre (222-hectare) Google project in this small town of 1,600 people. “I had 50 people I talked to,” Gustafson told me. “Nobody wanted that datacenter in their community. And at least a half a dozen people came up to me to say, ‘Hey, I voted for Trump. What the heck’s he doing, supporting these things?’”

Record inundations wrecked homes and took seven lives but Trump has not approved emergency aid and the state has cut funds for environmental agencies

It’s been 10 days since the floodwater receded from Cambridge City’s main street and yet signs of disaster are all around.

Abandoned cars, toilets and bathtubs are strewn across parks and side streets on a recent visit to the city. Garages have been lifted from their foundations and moved by the rushing water. Dumpsters up and down the street are overflowing with people’s belongings, with red paint sprayed on homes indicating which houses have been cleared by water rescue teams.

Each year, the Guardian reaffirms its commitment to the environment – both in our reporting and how we operate as a business. From critical tipping points to war in Iran, this is how the last 12 months have looked

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Today marks the end of the Guardian’s annual climate support campaign. Each year, during the campaign, we remind our audience about the Guardian’s role in covering the threats to our planet and the importance of independent journalism in telling that story. Our climate pledge is a reminder of the environmental values we place at the heart of our reporting and our organisation.

Since our 2025 climate pledge, the world has experienced extreme levels of heat as well as extreme forms of denial and abdication in the face of the climate crisis. But, across the world, there have also been inspiring efforts to tackle it.

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In this week’s newsletter: Anti-datacentre sentiment is growing across the political spectrum in the US – and the public is only just finding out about the potential effects on their energy bills

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Anti-datacentre sentiment is growing from across the political spectrum in the US.

More than a dozen states have considered moratoria on datacentres. New York became the first US state to enact a temporary ban last month. Progressive stalwarts Senator Bernie Sanders and Representative Alexandria Ocasio-Cortez have proposed a national moratorium. And even Greg Abbott, the far-right governor of Texas, called for a ban on datacentre development in rural swaths of his state.

‘Our new normal’: how marine heatwaves affect life in British seas

Iraq’s ghost villages: Islamic State drove people away – now a new enemy is preventing their return

Destroyed crops, riverbed cyclists and a ‘Rock of Starvation’: how drought has devastated the Danube

Nepalis and Tibetans must not pay the price – with their lives, livelihoods and money meant for education and health – for global heating caused by wealthy states

• Sunil Acharya is an international climate policy and just transition specialist based in Kathmandu, Nepal

As a Nepali citizen working on international climate policy for more than a decade, it is difficult to look at the harrowing images coming out of the catastrophic flash flood that thundered down valleys in Nepal, sweeping down the Lhende Khola, Bhotekoshi and Trishuli rivers, and not feel angry.

Not just because of the destruction, but because it comes after years of warnings from scientists and civil society that a rapidly warming planet would make disasters more frequent, more intense and harder to predict. This is what the cost of delaying global climate action looks like.

Sunil Acharya is an international climate policy and just transition specialist based in Kathmandu, Nepal

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