The Guardian

Greens MP says number of mortalities is ‘enormous’ and ‘most likely the result of overstocking’

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Environmentalists are calling on the Tasmanian salmon industry to explain why more than 1,000 tonnes of salmon died in fish farms in Macquarie Harbour over seven months last spring and summer.

A government document published after a request by the Neighbours of Fish Farming, a group that campaigns against commercial salmon operations, suggest 1,150 tonnes of fish died in farms in the vast harbour on the state’s west coast between September and March.

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Oceanographer Stefan Rahmstorf explains why Amoc breakdown could be catastrophic for both humans and marine life

The dangers of a collapse of the main Atlantic Ocean circulation, known as Amoc, have been “greatly underestimated” and would have devastating and irreversible impacts, according to an open letter released at the weekend by 44 experts from 15 countries. One of the signatories, Stefan Rahmstorf, an oceanographer and climatologist who heads the Earth system analysis department at the Potsdam Institute for Climate Impact Research in Germany, explains here why he has recently upgraded his risk assessment of an Amoc breakdown as a result of global heating – and what that means for Britain, Europe and the wider world.

Long-delayed regulations may ‘encourage’ housebuilders to equip homes with solar panels, rather than requiring them

Labour is considering making solar panels optional on new homes in England, after pressure from housebuilders, in a move that would weaken low-carbon regulations, the Guardian has learned.

Ministers are preparing to publish long-delayed regulations for new homes, known as the future homes standard, which would ensure that all newly built homes are low-carbon.

For over a century the villagers of Barekuri, north-east India’s biodiversity hotspot, have coexisted with the country’s only ape species, the hoolock gibbon. But this harmony stands in fragile ecological balance. Mohit Chutia, a 55-year-old farmer and father, has been taking care of one gibbon family while raising his own. When researcher Ishika Ramakrishna arrives to study human-gibbon interactions, she joins forces with Mohit and the villagers to tackle the gibbons' urgent population decline, endangered by habitat loss, deforestation and industrial catastrophe

Exclusive: Those with ‘interest in keeping world hooked on fossil fuels’ should not oversee climate talks, say report authors

Azerbaijan, the host of the Cop29 global climate summit, will see a large expansion of fossil gas production in the next decade, a new report has revealed. The authors said that the crucial negotiations should not be overseen by “those with a vested interest in keeping the world hooked on fossil fuels”.

Azerbaijan’s state-owned oil and gas company, Socar, and its partners are set to raise the country’s annual gas production from 37bn cubic metres (bcm) today to 49bcm by 2033. Socar also recently agreed to increase gas exports to the European Union by 17% by 2026.

The state Labor government is steering Australia’s climate policy, letting emissions soar unbridled as it paves the way for massive fossil fuel projects

Western Australia sometimes feels more than three hours behind the rest of the country.

The tyranny of our distance has always meant it’s been hard to get the attention of the east coast.

A sulphur-crested cockatoo named Mickey that had been 'living on brioche' inside a Sydney supermarket for four weeks has been captured by wildlife services and is expected to be set free soon. On Tuesday morning, another cockatoo, Old Lady Doris, was taken into the supermarket by the Feathered Friends bird rescue director Ravi Wasan to comfort the lost bird, allowing Wasan to successfully capture him. Wasan said Mickey looked 'physically fine' and was not hungry because he was eating 'really well' in the supermarket. The NSW environment minister announced on Tuesday evening the bird had 'been safely captured by wildlife rescuers after spending way too long in Macarthur Square' shopping centre

• Cockatoo rescued after ‘living on brioche’ for four weeks inside Sydney supermarket

Comprehensive review suggests that adding more parks, trees and greenery could improve public health

Green spaces in cities play a vital role in reducing illness and deaths caused by climate breakdown, according to the most comprehensive study of its kind.

The findings of the review suggest that adding more parks, trees and greenery to urban areas could help countries tackle heat-related harms and improve public health.

Defra body, created to overhaul system amid public fury, may force firms to be run for public good rather than shareholder returns

• New water regulator must create environmental enforcer that is feared | Nils Pratley

Water companies in England could be banned from making a profit under plans for a complete overhaul of the system.

The idea is one of the options being considered by a new commission set up by the Department for Environment, Food and Rural Affairs (Defra) amid public fury over the way firms have prioritised profit over the environment.

The division of responsibilities between Ofwat, the Environment Agency and Drinking Water Inspectorate hasn’t worked

• New regulator may ban English water companies from making a profit

An independent commission into the English and Welsh water sector would have been an excellent idea about 20 years ago. It is hard to pinpoint precisely when the industry went seriously off the rails but Ofwat’s infamous price review of 2004 is one starting point. That is when the undoubted gains from higher investment in the decade after privatisation in 1989 started to evaporate and the story turned into one of financial engineering and grossly inadequate regulation.

The 2004 settlement was wildly generous to the companies and kickstarted the disastrous take-private buyout boom by private equity and global infrastructure funds. Dividend extraction and “whole business securitisations” followed, tolerated by an economic regulator that, absurdly, took the view that sky-high debt levels and Cayman Islands financing vehicles were not its job to worry about.

Report also finds at least 1,344 individual birds of prey were persecuted in the UK between 2009 and 2023

More hen harriers were killed in 2023 than in any other year on record, a report has found.

The RSPB’s Birdcrime report also found that at least 1,344 individual birds of prey were persecuted in the UK between 2009 and 2023, and that 75% of people convicted of offences related to the persecution of birds of prey in that period were connected to the gamebird shooting industry.

Australia’s solar waste problem – identified as a priority by the federal government in 2016 – is becoming larger and more urgent

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In a 50m shed south of Brisbane, solar panels are being turned into silver and copper.

Photovoltaic panels no longer capable of producing electricity are having their aluminium and wires removed before being ground up and refined into plastic, glass, silicon, silver and copper. So far, nothing has gone to waste.

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Energy secretary prepares new pledge for big UK carbon cuts in next decade amid potential cabinet division

Ed Miliband is facing his first key test on Labour’s ambitions for global climate leadership, with a crucial decision looming on how far and how fast to cut the UK’s greenhouse gas emissions.

The energy secretary is preparing a new international pledge for the UK to cut carbon sharply in the next decade, but could face opposition within the cabinet.

Critics say eels could be smuggled eastwards towards Asia but exporter says they are for ‘restocking’ project

Millions of critically endangered eels have been exported from the Severn estuary to Russia this year and conservationists fear export quotas will be increased next year.

A tonne of glass eels, the young elvers that swim into European estuaries from the Sargasso Sea each spring, was flown to Kaliningrad this year, double the amount exported to the Russian port the previous year.

Mowi Scotland, which supplies Tesco, Asda and Sainsbury’s, blames a rise in sea temperatures for the deaths, while campaigners say expanding farms will make things worse

More than a million dead fish, the biggest mass die-off of farmed salmon in Scotland in a decade, have been recorded at a farm belonging to the UK’s largest supplier.

The deaths at two adjacent Mowi Scotland sites in Loch Seaforth on the Outer Hebrides – licensed as one farm by the Scottish government – rose to just over a million during the year-and-a-half production cycle that it usually takes to raise a salmon in seawater, and which in this case began in spring 2023. Mowi supplies salmon to retailers including Sainsbury’s, Tesco, Asda and Ocado. Many of its farms, including those in the Hebrides, are certified under the RSPCA Assured label, which guarantees higher animal welfare standards.

Efforts to reduce levels of PFAS chemicals in our drinking water are important – but most water supplies are already below the new limits

The Australian National Health and Medical Research Council has today released draft guidelines for acceptable levels of per- and polyfluoroalkyl substances, or PFAS, in drinking water. PFAS chemicals are also known as “forever chemicals” because they do not break down easily and can persist in the environment, including drinking water supplies.

The new guidelines – which are not mandatory but will inform state and territory policy – are expected to be finalised in April 2025. They propose a reduction in the maximum levels previously considered safe for four key PFAS chemicals: PFOS, PFOA, PFHxS and PFBS.

Evidence to date does not establish whether PFAS at exposure levels seen in Australia might increase risks of cardiovascular disease … Established risk factors … are likely to be of a much greater magnitude than those potentially caused by PFAS.

As nations meet in Colombia to confront species and ecosystem loss, the onus is on the global north to put science and collaboration at the heart of the issue

• Angela McLean is chief scientific adviser to the UK government

Biodiversity, the incredible variety of life on Earth, is the backbone of the ecosystems that allow life on this planet to flourish. From the rich soil that nurtures our food and stores our carbon, to the green spaces that improve our mental health, biodiversity is an unsung hero upon which our societies and economies thrive.

Despite the clear benefits of – and moral arguments for – protecting nature, human activities are accelerating biodiversity loss at unprecedented rates. We are destroying habitats, overexploiting natural resources and introducing invasive species, which put plant and animal species at risk of extinction. Human-induced climate change is intensifying biodiversity loss and altering ecosystems, reducing their ability to provide natural climate solutions. Right now, in South America, devastating drought and fires – exacerbated by climate change – are destroying millions of acres of forest habitats.

Global heating particularly increasing risk of death from smoke inhalation in Australia, South America, Europe and parts of Asia

Global heating is causing more of the planet to be burned from wildfires and probably killing an extra 12,000 people a year from breathing in smoke, according to new research.

Global heating was particularly increasing the risk of death from wildfire smoke in Australia, South America, Europe and the boreal forests of Asia, one modelling study found.

Hauliers’ group Transport in Nood BV launched judicial review earlier this year over fines issued in Ulez and Lez

Transport for London (TfL) could be forced to pay back millions of pounds in low emission zone fines issued to Dutch lorry drivers after agreeing they had been issued unlawfully.

The body said it had agreed to settle a claim regarding the Ulez fines after a company representing dozens of Dutch haulage companies launched a legal challenge into the ultra-low emission zone (Ulez) and low emission zone (Lez) fines earlier this year.

Oscar, 10th hurricane of 2024 season, batters Turks and Caicos and Bahamas and threatens Cuba and Canada

Hurricane Oscar has become the 10th hurricane of the 2024 Atlantic season, battering the Turks and Caicos Islands on Saturday night and the far southern Bahamas on Sunday.

The disturbance that eventually became Oscar was initially given a low chance of tropical development by the US National Hurricane Center. It began on 10 October as a tropical wave across western Africa, bringing thunderstorms and gusty winds to the Cabo Verde Islands, before moving westwards over the Atlantic. However, it struggled to become sufficiently organised at it progressed, as dry air inhibited further thunderstorm development.