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Two-year-old calf one step closer to reuniting with family group after tragic accident that left her stranded in remote lagoon

An orca calf, trapped for weeks in a remote lagoon in western Canada, has freed herself and is travelling towards open waters, hailed as “incredible news” by a growing body of human supporters.

The move puts her one step closer to reuniting with her family one month after a tragic accident left her stranded.

Panel of nearly 100 countries to draw up guidelines for industries that mine raw materials used in low-carbon technology

A UN-led panel of nearly 100 countries is to draw up new guidelines to prevent some of the environmental damage and human rights abuses associated with mining for “critical minerals”.

Mining for some of the key raw materials used in low-carbon technology, such as solar panels and electric vehicles, has been associated with human rights abuses, child labour and violence, as well as grave environmental damage.

These cafes are determined to steer customer habits back away from single-use cups

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Almost everyone has a reusable cup (or three) in their kitchen cupboard, but the convenience of disposable cups often triumphs on the morning coffee run.

In Australia, an estimated 1.8bn single use coffee cups go to waste each year, and the number exceeds 500bn globally.

Group banned plants ‘removed from habitat’ from its shows – causing uproar from enthusiasts

A furious row has blown up in the UK’s leading succulent society over the practice of taking desirable specimens from the wild, with the chair resigning in protest over the behaviour of his fellow enthusiasts.

Succulents have risen in popularity in recent years: they are attractive and hardy.

Global warming and international trade offering increasingly hospitable environment

Some are small and jumpy; others are large and intimidating – if you’re a humble housefly. Exotic spiders are flourishing in Britain as international trade offers ample opportunities for spider travel and global heating provides an increasingly hospitable climate.

A jumping spider new to science has been identified living on the University of Exeter’s Penryn campus in Cornwall. The nearest known relative of the 3-4mm-long Anasaitis milesae is found in the Caribbean, making it highly likely that this tiny species – alongside 17 other non-native jumping spider species – found its way to Britain from distant climes.

Rain in Kenya, Tanzania and Burundi kills at least 90 people and damages farmland and infrastructure

Eastern Africa has experienced heavy rain in recent weeks, with flooding in Kenya, Tanzania and Burundi. About 100,000 people have been displaced or otherwise affected in each country, with 32 reported deaths in Kenya and 58 in Tanzania, alongside damage to farmland and infrastructure.

There are also fears that large areas of standing water could give rise to outbreaks of waterborne diseases.

Soiled seas and huge shareholder dividends: where has the £64bn borrowed by firms since privatisation gone?

So that’s how they do it. I’d been wondering how, when more sewage has been entering our rivers than ever before, some of the water companies have managed to improve the ratio of the sewage they treat v the sewage that pours untreated from their storm overflows into our rivers and the sea. Now we know.

It’s called “flow trimming”. Sounds innocuous, doesn’t it? What it means is that sewage is diverted into rivers and ditches upstream of the water treatment works. By reducing the amount of sewage entering the works, the companies can claim to be dealing responsibly with a higher proportion of it.

George Monbiot is a Guardian columnist. Join him for a Guardian Live online event on Wednesday 8 May at 8pm BST. He will be talking about his new book, The Invisible Doctrine: The Secret History of Neoliberalism. Book tickets here

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Open letter calls for green policies that empower farmers, after months of protests jeopardise future of flagship biodiversity deal

The EU’s nature restoration law will only work if it is enacted in partnership with farmers, a group of leading scientists has said, after months of protests have pushed the proposals to the brink of collapse.

In an open letter, leading biodiversity researchers from across the world said that efforts to restore nature are vital for guaranteeing food supplies – but farmers must be empowered to help make agriculture more environmentally friendly if the measures are to succeed.

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

Researchers also find zebra finches 20% less likely to hatch from eggs if exposed to noise pollution

Noise pollution from traffic stunts growth in baby birds, even while inside the egg, research has found.

Unhatched birds and hatchlings that are exposed to noise from city traffic experience long-term negative effects on their health, growth and reproduction, the study found.

Shadow minister Steve Reed vows to uphold targets on biodiversity loss and protecting land and sea

Labour has pledged to halt the decline of British species and protect at least 30% of the land and sea by 2030 if it is elected.

Steve Reed, the shadow environment secretary, also vowed to set a new land use framework that would prioritise the protection of nature, and to deliver on targets to improve the UK’s environment.

Sewage pollutes our waterways, species face extinction. We must act fast to halt the decline – and we will

• Steve Reed is shadow environment secretary

We must not be the last generation to have the opportunity to marvel at nature.

When I was growing up, I took for granted the excitement of climbing trees in the local woods at the end of our road, sleeping under the stars at Scout camp, and exploring the micro-worlds of seaside rockpools on holiday in Cornwall. Our children and grandchildren deserve to be astounded by the magnificence of our landscapes and coastlines, mesmerised by the beauty of a robin’s song, and to splash about in the local river.

Steve Reed is the MP for Croydon North, and shadow secretary of state for environment, food and rural affairs

Ali died of cancer last year. He was 21, and had to live in the choking smoke of the Rumaila oilfield

A year has passed since my beautiful boy Ali Julood died. Not a day goes by when I do not think of him smiling and playing football with his friends outside. Those days are gone. As a father, that gives me great pain.

Ali was diagnosed with leukaemia at the age of 15. The cancer caused him to drop out of school, leave his football team and spend years undergoing painful medical treatment. He died at the age of 21 on 21 April 2023.

Lack of parts and outdated laws also contributing to long repair wait times and ballooning premiums

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Electric vehicles are routinely being written off after minor accidents, as a shortage of skilled mechanics and parts, as well as outdated laws, leads Australian insurers to scrap EVs prematurely instead of repairing them.

Despite the scarcity of supply that has plagued the local market in recent years, in part due to the lack of a fuel-efficiency standard, the financial reality of insuring EVs is continuing to consign them to scrap yards while inflating premiums for owners.

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Proposed global treaty to curb production represents challenge to producers of fossil fuels, from which most plastics are made

The number of fossil fuel and petrochemical industry lobbyists at UN talks to agree the first global treaty to cut plastic pollution has increased by more than a third, according to an analysis.

Most plastic is made from fossil fuels, via a chemical process known as cracking, and 196 lobbyists from both industries are at the UN talks in Ottawa, Canada, where countries are attempting to come to an agreement to curb plastic production as part of a treaty to cut global plastic waste, according to analysis by the Center for International Environmental Law (Ciel).

Scheme for plastic bottles and cans put back to 2027 while environment minister says glass recycling ‘unduly’ complex

A UK deposit return scheme for recycling drinks bottles has been delayed to 2027, meaning it will not be in place until almost a decade after it was proposed.

Campaigners say the delay is a “huge disappointment”, adding they are doubly dismayed that the plan will not include glass bottles.

New EPA directive will cut pollution equivalent to the emissions of 328m cars, but industry group decries it as a ‘reckless plan’

Coal-fired power plants would be forced to capture smokestack emissions or shut down under a rule issued on Thursday by the Environmental Protection Agency (EPA).

New limits on greenhouse gas emissions from fossil fuel-fired electric plants are the Biden administration’s most ambitious effort yet to roll back planet-warming pollution from the power sector, the nation’s second-largest contributor to the climate crisis. The rules are a key part of Joe Biden’s pledge to eliminate carbon pollution from the electricity sector by 2035 and economy-wide by 2050.

Energy watchdog warns pace must accelerate to hit targets after new batteries increased capacity by 130%

The rollout of batteries across the global electricity industry more than doubled last year but will need to be six times faster if the world hopes to meet its renewable energy targets, according to the International Energy Agency (IEA).

A report from the global energy watchdog found that new batteries totalling 42 gigawatts (GW) were plugged into electricity systems around the world last year, increasing total capacity by more than 130% from the year before to 85GW.

As the climate crisis has deepened, protesters have become more confrontational – and their ambitions have grown

The head of ExxonMobil told to “eat shit” as he was about to receive an award. A US senator and coal boss called a “sick fuck”, almost sparking a brawl. Theatre shows interrupted. As the climate crisis has deepened, protests aimed at those deemed responsible are becoming starkly personal, and often confrontational.

At the vanguard of this new style of in-your-face activism is Climate Defiance, a group of just a handful of core staffers now marking its first birthday following a year of disrupting, often crudely, the usually mundane procession of talks, speeches and panels that feature Joe Biden administration officials, oil company bosses and financiers.

Authorities are rushing to save more than 150 whales from a mass stranding at a beach in Western Australia’s south-west. Four pods have spread across roughly 500 metres at Toby Inlet near Dunsborough and 26 of these have died, Parks and Wildlife Service Western Australia confirmed. Wildlife officers, marine scientists and veterinarians are on site assessing the conditions of the whales that have become stranded

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• Mass pilot whale stranding on WA beach sparks rescue