The Guardian

Some wildlife species have accumulated many times more than safe amount of PFAS in their tissue and organs

• Revealed: drinking water sources in England polluted with forever chemicals
• Revealed: scale of ‘forever chemical’ pollution across UK and Europe

Dolphins, otters, porpoises, fish and birds across the UK have been found to have toxic “forever chemicals” in their tissue and organs, analysis of official data has revealed.

Manmade chemicals called PFAS, known as forever chemicals because they do not degrade, are used in a wide range of consumer products and industrial processes and some have been linked to serious diseases in humans and animals, including cancers. PFAS have been found widely to pollute water and soils and are thought to be in the blood of every human on the planet.

Region hit by strong winds, flash flooding and giant hailstones, causing one death and widespread power cuts

Severe thunderstorms have been wreaking havoc across eastern Australia this week, unleashing heavy rain, strong winds, flash flooding and giant hailstones.

In some regions there were wind gusts of more than 100mph (160km/h) and strong winds caused operational disruptions at Sydney airport as well as extensive damage nearby, including roofs being torn off buildings. An 80-year-old man died after a tree fell on his car in New South Wales, and several other injuries have been recorded. The storms also triggered lightning strikes, leading to widespread power outages that affected more than 200,000 homes and suspending rail services.

The best of this week’s wildlife photographs from around the world

Experts criticise Defra’s decision not to use OECD definition of PFAS, with one asking if move is ‘politically based’

• What are PFAS, how toxic are they and how do you become exposed?

Leading scientists have criticised the UK government for failing to take stronger action to tackle “forever chemical” pollution and refusing to match moves in the EU to ban non-essential uses of the substances.

Last year, 59 experts in per- and polyfluoroalkyl substances (PFAS) sent a letter to the Department for Environment, Food and Rural Affairs (Defra) asking it to follow the science, which has established that PFAS do not biodegrade and that despite variations in toxicity, this persistence itself is sufficiently worrying that all PFAS should be regulated as one class.

Scientists say frog’s journey shows difficulty of spotting insects or fungi spread by global plant trade

A tiny tree frog hitchhiking in a bunch of roses to Sheffield from Colombia has inspired a study into invasive species reaching the UK’s shores.

Dr Silviu Petrovan, a researcher in the University of Cambridge’s zoology department and a senior author of a paper published today in the journal BioScience, had his interest piqued when he was asked to identify a live frog found in roses in a florist’s shop in Sheffield.

Report criticises ‘slow progress’ on industry regulation, amid record fish mortality and concerns over welfare and environmental pollution

The Scottish government has been criticised for its “slow progress” on regulating the salmon farming industry by a parliamentary inquiry that took evidence for five months before reaching its conclusion.

The report reveals that MSPs “seriously considered” calling for a moratorium on new farms and expansion of existing sites due to concerns over persistently high salmon mortality rates but did not do so due to uncertainties over the impact on jobs and communities.

Data for 2024 shows humanity is moving yet deeper into a dangerous world of supercharged extreme weather

Wildfires that blazed around the world in 2024 helped to drive a record annual leap in carbon dioxide levels in the atmosphere, surprising scientists. The data shows humanity is moving yet deeper into a dangerous world of supercharged extreme weather.

The CO2 level at the Mauna Loa observatory in Hawaii jumped by 3.6 parts per million (ppm) to 427ppm, far above the 280ppm level before the large-scale burning of fossil fuels sparked the climate crisis. The Mauna Loa observations, known as the Keeling curve, began in 1958 and are the longest running direct measurements of CO2.

Our society emphasises the value of conquering and overcoming your fears – but I can live with the idea of not climbing every mountain

Earlier this year, I finally climbed Mount Anne. This has taken an unlikely amount of time – I’ve been climbing Tasmanian mountains for years, but had never been up one of the island’s signature summits.

A “peak bagging” hobby is great fun, and takes you out to all sorts of interesting places. Some Tasmanians set themselves to climb the Abels, a list of 158 mountains that are at least 1100m high, but the list compiled by the Hobart Walking Club, the one I follow, is far more ridiculous – a total of 481 summits to find your way up. A list that huge seems bigger than most of them.

With the outlook for risk of fire, flood and other disasters increasing, this is not a problem that will go away

As we watch the horror of the Los Angeles fires, Australians are painfully reminded of our own vulnerability to climate change, which continues to exacerbate the impact and frequency of these unnatural disasters.

The images of loss and destruction in LA are particularly painful to those who have experienced such losses first-hand in Australia.

Nicki Hutley is an independent economist and councillor with the Climate Council

British director of Human Rights Watch attacks ‘dangerous hypocrisy’ of government

Britain’s crackdown on climate protest is setting “a dangerous precedent” around the world and undermining democratic rights, the UK director of Human Rights Watch has said.

Yasmine Ahmed accused the Labour government of hypocrisy over its claims to be committed to human rights and international law.

Exclusive: Water industry calls for PFAS ban after analysis of sampling data shows contamination across country

• What are PFAS, how toxic are they and how do you become exposed?
• The Guardian view on chemical pollution: the UK can’t ignore the risks from PFAS

Raw drinking water sources across England are polluted with toxic forever chemicals, new analysis has revealed, prompting the water sector to demand that ministers ban the substances and polluters pay for the astronomical cleanup costs.

The areas covered by Affinity Water and Anglian Water were found to be particularly badly affected, and experts have said they fear “we are drastically underestimating the size of the problem”.

Levels of PFAS chemicals found in sludge destined for British land would not be considered safe for allotments

• Where are the UK’s ‘forever chemical’ hotspots?
• Industry using ‘tobacco playbook’ to fend off ‘forever chemicals’ regulation
• The Guardian view: the UK can’t ignore the risks from PFAS

Sewage sludge spread on farmland is contaminating soils, water and potentially the food chain with “forever chemicals”, and whistleblowers from the Environment Agency say the systems in place to prevent such pollution are “not fit for purpose”.

Watershed Investigations and the Guardian obtained samples of treated sewage sludge destined to be spread on land from five different catchments, and found levels of PFAS (per- and polyfluoroalkyl substances) forever chemicals that would not be considered safe on allotments, as well as levels of flame-retardant chemicals described by experts as “exceptionally high”.

With few exceptions, the news has shied away from showing how the unfolding climate crisis plays a large role in the disaster

Last week, as the Sunset fire was bearing down on her Los Angeles home, Allison Agsten approached a group of television news crews gathering in her neighborhood. Did any of them plan to mention the role of the climate crisis in their reporting?

The question was professional as well as personal for Agsten, who runs a climate journalism center at the University of Southern California and has trained reporters on how to connect the climate crisis to what’s happening in the world. She has lived in her home along Runyon Canyon, near Hollywood, for a decade.

Office for Environmental Protection calls for urgent action after finding government is falling short on most targets

The window to stop the decline of England’s nature is swiftly closing, the environmental watchdog has said, as its latest report finds that the government is falling short on most of its targets to improve the environment.

Some of Labour’s actions, however, including setting up a water commission and writing a new environmental improvement plan, were praised by the Office for Environmental Protection (OEP) in its annual review of how the government was meeting the legally binding environment targets.

Exclusive: Report by risk experts says previous assessments ignored severe effects of climate crisis

Global economic growth could plummet by 50% between 2070 and 2090 from the catastrophic shocks of climate change unless immediate action by political leaders is taken to decarbonise and restore nature, according to a new report.

The stark warning from risk management experts the Institute and Faculty of Actuaries (IFoA) hugely increases the estimate of risk to global economic wellbeing from climate change impacts such as fires, flooding, droughts, temperature rises and nature breakdown. In a report with scientists at the University of Exeter, published on Thursday, the IFoA, which uses maths and statistics to analyse financial risk for businesses and governments, called for accelerated action by political leaders to tackle the climate crisis.

Eastern NSW, particularly northern rivers, and Gold Coast at high risk for severe thunderstorms and winds on Thursday, BoM forecasts

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Persistent rain and strong winds will sweep across New South Wales into the weekend, the Bureau of Meteorology predicts, with Sydney on the “southern cusp” of the stormy weather.

Angus Hines, a senior meteorologist at the Bureau of Meteorology, said Sydney’s weather could shift from storms to a “dreary” mix of wind, rain and cloud. It would be “persistently windy” and “quite chilly”, he said.

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I’ve been writing about climate change for years. I know my graphs won’t change minds, but facts matter

2025 has not started well, and you should be bloody angry.

We are less than five months from the federal election and both major parties’ climate change policies are an amalgam of indolence and lies.

Will water soon be a marketable commodity or a priceless public good?

There’s a scene in the film Mad Max: Fury Road where the evil ruler Immortan Joe, gazing down from a cliff upon his parched, emaciated subjects, turns two turbines, and water gushes from three gigantic sluices. The wretched masses surge forward to catch the deluge in their pots and bowls. And as imperiously as he opened the gates, Joe shuts them. “Do not become addicted to water,” he roars. “It will take hold of you.” But, of course, he already has taken hold of them by withholding, essentially, life.

We don’t have to await the dystopian future for the water wars to begin. The struggle over water, between private interests and the public good, the powerful and the weak, is raging now. From Love Canal to Flint, Michigan; Bolivia to Ukraine to Tunisia; budget-cutting, privatization, corporate malfeasance and climate crises are conspiring to create political violence, mass migration, property damage and death.

Global heating means atmosphere can drive both extreme droughts and floods with rapid switches

Climate “whiplash” between extremely wet and dry conditions, which spurred catastrophic fires in Los Angeles, is increasing exponentially around the world because of global heating, analysis has found.

Climate whiplash is a rapid swing between very wet or dry conditions and can cause far more harm to people than individual extreme events alone. In recent years, whiplash events have been linked to disastrous floods in east Africa, Pakistan and Australia and to worsening heatwaves in Europe and China.