Cultivating the nutritious bugs means families can raise livestock and enrich their own food, while lowering pressures on the land

A few minutes' walk from his home in the Kyaka II refugee settlement, Kanane Bikanyale feeds black soldier fly larvae to chickens in a coop above a fishpond. The larvae disappear in a scrum of chickens. Nearby, more larvae grow in modified jerrycans, while adult flies are kept in netted boxes.

Bikanyale kept chickens before he fled to Uganda from the Democratic Republic of the Congo (DRC). But the cost of conventional feed and shortages of ingredients made them increasingly difficult to raise - a widespread pressure for millions of smallholder farmers whose margins are tight.

Kanane Bikanyale tends to his black soldier fly larvae in a rearing unit in the Kyaka II refugee camp in Uganda

At Bybi in Copenhagen, a dedicated group of staff and volunteers have built a community for all centred on the production of honey - much of which is given away for nothing. Could it be replicated elsewhere?

The bees at Bybi, a collective of beekeepers in Copenhagen, live on the roof. Their home is a complex of Victorian buildings, right in the centre of the city, that looks like an idealised vision of the modern social enterprise, ennobled by the architecture of the past. It's a place of cottage industry in concert with nature, where the marginalised are brought in from the fringes and corporations stand waiting to help, where jobs happen but a lot of the work is done by volunteers, and where - this bit is important - a lot of time is spent discussing ideas.

Oliver Maxwell, Bybi's 48-year-old founder, encourages me to examine the buildings more closely. They were once a prison, a workhouse and a hospital; their functions today - a homeless shelter, a young offender institution and, until recently, a job centre - are not so different. Denmark's Victorian transformation, from "agricultural backwater to industrialised agriculture", was reflected in how they treated people, Maxwell says.

Should you look for French seams or overlocking? Is dry-clean only a red flag? And how do you spot quality when shopping online? We asked the pros

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Take a look at the outfit you're wearing now: how many times have you worn each item? And how long have you had them? Just over 10 years ago, Eco-Age founder Livia Firth and journalist Lucy Siegle launched the 30 wears challenge to encourage people to buy clothes they would wear at least 30 times.

The 30 wears challenge is a great concept. As a journalist interested in sustainable fashion, I've enjoyed applying this rule for years and found the goal can often be surpassed, but with one proviso: clothing must be chosen carefully. The goal is only realistic if garments are of good enough quality to stand up to repeated wear. So, how do you know if your clothes really are well made? Does it mean you have to spend a fortune on them? Do you need to know the difference between a French seam and an overlock seam? And how can we judge clothing quality before buying if we are, like 37% of Britons, getting most of our clothes online? I spoke to experts to find out.

Team works to restore the sunflower sea star as 95% of these key underwater ecosystems have been decimated along the Pacific coast in past decade

Off the coast of Monterey, California, a team of researchers is gearing up for its first dive of the day into the cold and choppy waters of the Pacific Ocean.

On the back deck of the boat, Ashley Kidd, a co-founder of the non-profit Sunflower Star Laboratory, gave the divers their final command: "Dive No 1 … stars in the water."

Environmentalists of all political hues must find the language and ideas that turn passion for climate action into impetus

The future of Green politics is under constant discussion after the Holborn and St Pancras byelection, but a much heavier clash - in meaning, symbolism and portent - happened earlier this summer, in King's Lynn and West Norfolk. The council declared a climate emergency in 2021, along with hundreds of others, and while it was under Conservative control. It is now controlled by independents, and a Reform UK councillor, Austen Moore, moved to scrap the declaration.

It was the end of June, and the meeting had to be called off, because of the extreme heat in the King's Lynn council chamber. A lot of people paused to grimly remark on that irony, but not Moore, who simply rescheduled the motion for the following week, where it was voted down (by 33 to seven). A local scientist and member of Extinction Rebellion liveblogged that debate, adding helpful maps, such as how much of the county was already below the annual flood level - most of it, including King's Lynn itself. If this all sounds like a cheerful take home, numerous other Reform-led councils have had the same debate and Reform has prevailed. Their arguments can be terrifyingly illiterate. In Kent, councillor Linden Kemkaran asserted that climate change is fine because the world was warmer in Roman times, and as "carbon dioxide … is a trace gas essential for life on Earth", to try to cut carbon emissions would itself be dangerous.

Zoe Williams is a Guardian columnist

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The emissions might occur elsewhere, but they generate global harm that scientists can now quantify

The Coalition has come up with the perfect solution to deal with the climate pollution from when Australian fossil fuels are burned overseas.

We should either just pretend they don't exist, or ignore the reason why people are concerned about them, even if those people include a majority of high court judges or the international court of justice.

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Insurers are taking on more risk than they should. If - or when - a major disaster hits, the catastrophe will have far-reaching consequences

I work for a major insurer, assessing the risk posed by natural disasters on properties around the world, from family homes to schools, government offices and multibillion-dollar commercial centres. The world is facing greater risk than ever from extreme weather. We are not prepared - and that inaction could have profound consequences for the global financial system.

In the face of ever more extreme and unpredictable climate risks, I am coming under pressure to cut my forecasts for the losses that disasters will cause in order to make insurance more affordable - and get my employer more business. In some instances, the questioning of our numbers and models is justified. But too often, it is not being done to produce more accurate models, but to artificially lower prices. If this is happening at my firm, which is struggling to compete with rivals' prices, it's happening elsewhere.

The writer is a modeller working in the insurance industry. A version of this piece originally appeared with the Bureau of Investigative Journalism as part of their Secret Source series, a regular column featuring industry whistleblowers

High-speed video captures a previously unknown process that lets a honeybee's two-millimetre stinger pump venom even after detaching from the insect's body. Using a clear gel that mimics human skin as a target, researchers from Macquarie University detached the stingers and then filmed them in action pumping venom

Brussels uses WTO rules to quickly impose quota, which will halve Chinese market share to 3%

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The EU is to limit the number of hybrid electric vehicles imported from China to 350,000 cars a year, the European Commission has confirmed.

Imports have been soaring in the past two years; about 800,000 battery and plug-in hybrids are likely to be sold this year.

Clear skies bring warm days and cold nights to Montenegro, while a low-pressure system moves towards Aegean Sea

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Temperatures fluctuated dramatically in the Balkans last week, with unusually large differences between daytime highs and overnight lows - known as the diurnal range.

An area of high pressure over the region brought prolonged sunshine during the day, while clear skies at night allowed temperatures to drop rapidly as heat escaped into the atmosphere without cloud cover to slow the cooling.

The 21-year-old goalkeeper wants to impress on football the need to change old habits for the sake of the planet

"I'm a bit of an outlier as a person, I like being unique in who I am and what I do," says the former Arsenal goalkeeper Alexéi Rojas, who combines saving shots with saving the planet. "I would say that was one of the biggest pulls for me to become a goalkeeper. I like being different."

There is plenty to make him stand out. By 15, Rojas was changing the way people thought at Arsenal, transforming attitudes at the academy's Hale End training ground where he would cycle, rather than get a lift from his parents. Rojas's interest in the climate crisis began thanks to his mother, who works in wind energy. He would visit her office to learn more about renewables and their potential.

Planting cover crops or perennial plants can protect soil amid potential flooding. Congress must act to protect these practices

As forecasters warn that this year's El Niño could become the strongest on record, concerns are growing about its effect on agriculture and food security.

The United States will not be hit nearly as hard as Central and South America, the Caribbean, and southern Africa, but severe weather could cause significant crop loss in some parts of the country.

Liz Carlisle is associate professor of Environmental Studies at UC Santa Barbara. She is the author of Healing Grounds: Climate, Justice, and the Deep Roots of Regenerative Farming and co-editor of Living Roots: The Promise of Perennial Foods

Exclusive: Some of £2bn savings needed from energy budget expected to come from boiler upgrade scheme, sources say

Ministers are preparing to slash the amount of money available to subsidise heat pumps as they look for ways to fund higher defence spending, sources have told the Guardian.

Miatta Fahnbulleh, the energy secretary, has been tasked with finding more than £2bn in savings from her budget to help pay for defence investment under a plan drawn up by the previous government.

Food producers are adding their voices to the chorus of warnings about the vulnerability of British supply chains

"There are so many decent, capable, productive, efficient arable farmers out there, asking how they are supposed to finance the crop they are meant to be putting in the ground," Jamie Burrows says.

Sitting in his tractor at his arable farm in Norfolk, Burrows is listing the multiple challenges facing him and other food producers.

In the Atacama desert, the extraction of lithium - so crucial to addressing the climate crisis - comes with escalating social and environmental costs

A high-altitude desert plateau traverses Argentina, Bolivia and Chile. I am on the Chilean side, sitting in a Jeep along with two other researchers. The afternoon air is thin and brisk but the sun is piercing - a combination I am familiar with from years of living and travelling in South America's Andean range.

The landscape is a study in contrasts and contours: broad basins suddenly cut off by sweeping curves; flat expanses sliced by near vertical ascents. The Licancabur volcano looms large above us. Vegetation and humidity levels change rapidly with the rising altitude, bringing cooler temperatures, wetter air and denser plant life.

John Mitani spent years studying a huge community of chimpanzees in Uganda. But then things took a dark turn - and his findings stunned the scientific world

John Mitani can still remember the first time he set foot in Uganda's Kibale national park. The old-growth east African rainforest enveloped him, its canopy stretching to heights of 40 metres. Fruit trees bowed under the weight of African star apples and bountiful Ficus mucuso figs. And then there were the chimpanzees. Furry black blobs darted through the jungle, their raucous calls often deafening.

It was the summer of 1995, and Mitani, a primatologist from northern California, had just come from working with the chimps living in the Mahale mountains of Tanzania. At the time, Mahale was home to the largest known population of chimps, with about 100 individuals. But there were rumours that this section of Kibale - only accessible via a 12-hour drive from the capital, Kampala - might host an even more unusual abundance of apes.

A dry summer has left the Bristol Channel island critically short of water, forcing visitor caps and talk of evacuating its 28 residents

Tom Carr was peering up at the clouds scudding around the island of Lundy, 10 miles off the coast of north Devon. "That one's definitely got rain in it," he said. "The mainland will be wet at the moment. And look over at Wales - it's getting a real soaking just now."

But above Lundy the sky was, stubbornly, blue. No significant rain has fallen here since the start of May, leading to perilously low water levels. Restrictions have been put in place, visitor numbers limited and there has been talk of the island - home to 28 people - being evacuated.

Heat and humidity have led to one of the worst mosquito years in recent history, with West Nile virus at a decade high

Los Angeles might be best known for blue skies, beaches and film premiers — but for the last several years it's held another, unenviable distinction: the most mosquito-infested city in America.

And this year has been especially nightmarish, thanks to a series of heatwaves and an extra-powerful El Niño. Locals have called it a summer of "living hell" as clouds of mosquitoes swarm backyards and leave diners at open air patios scratching their ankles.

NEU's Daniel Kebede says earlier start times and longer summer breaks may be needed to help pupils and teachers

Schools should consider changing start and finish times, reordering holidays and moving exams from the summer months in an effort to adapt to the UK's increasingly severe heatwaves, according to the leader of the country's biggest education union.

Daniel Kebede, the general secretary of the National Education Union (NEU), said this summer's repeated bouts of extreme heat had a devastating impact on teachers and pupils, as classroom temperatures topped 40C and hundreds of thousands of young people were sent home.

The annual month-long festival takes place at a flower farm in the Victorian town of Silvan when tulips and other springs flowers are at their most vibrant

Protesters spent months occupying an ancient cottonwood. Then a tense standoff with US border patrol came to a head

A 200-year-old cottonwood tree near the US-Mexico border, known as the "grandmother", has been destroyed to make way for the construction of Donald Trump's border wall, despite a months-long effort by protesters trying to save it.

In late July, land defenders began a tree-sit in the ghost town of Lochiel, Arizona, taking turns occupying a platform high in the tree's canopy. The group remained there for more than 70 days.

For a growing band of older Australians, retirement has become an unlikely second act, spent rewilding mountains, counting sea slugs and coaxing damaged country back to life

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When Susan Downes stepped into the hallway of an old farmhouse for sale in York, Western Australia, she felt an oddly certain sense of knowing. "Oh, this is my house," the retired GP remembers thinking. There was just one problem: it came with 200 hectares.

Widowed and with her children grown, Downes, then in her 60s, was finally able to act on a long-held wish to move to the countryside. She had imagined something modest: an old house with "a little bit of garden and stuff". Two hundred hectares was rather more than she had in mind, no matter how charming she found the high ceilings. "I thought, the house is lovely, but I can't possibly do that."

Draft national strategy accepts the wily invasive species can't be eradicated but outlines steps to protect native animals most at risk

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They dart across playgrounds on dainty paws, sneak into back yard coops to eat suburban chickens and kill more than a million native animals every day.

The European red fox - a wily invasive species - is "one of the most impactful threats" for native mammals, says Sarah Legge, a professor at Charles Darwin University and author of a new draft plan to curb their predation.

Changing tide levels, shifting sands and hardened shorelines put waves at risk, affecting more than just surfers

The climate crisis is coming for some of the world's greatest surf breaks, submerging some as sea level rises and wiping out others as classic breaks get crushed against coastal developments.

Analysis of dozens of famous waves in world surfing reserves (WSR) found more than three-quarters were at high risk because of changing tide levels, hardened shorelines and shifting sands.

Plans for a 200-room project on an unspoiled beach have pitted developers against the conservationists fighting for smaller-scale schemes to protect the island's habitat

Visitors to Rocky Point in south-west Tobago are drawn to its sandy beach, fringed by coral reefs and dark rock formations and carpeted with the fruit-bearing trees found on Caribbean coastlines - almonds, sea grapes, coconuts, and the poisonous manchineel. The beach is part of Back Bay, a 500-metre swathe of land, and trekking through its undulating terrain, thickly covered in bush and shrubs, feels akin to walking through a rainforest.

But this still relatively unspoiled location is at the centre of a struggle between two opposing interests - those who see large-scale development as the most profitable path and those who believe smaller, incremental developments owned by the community would be best.

Deaths came from falling trees as nearly a million people are without power and rain and flooding remain a concern

Two people have died amid Isaias after it made landfall late on Friday on Florida's panhandle as a category 2 hurricane, according to authorities.

Both of those deaths occurred after trees fell on homes, one in Escambia county, Florida, and another in Birmingham, Alabama, as the storm moved in inland, local officials said.

Lockerbrook, Derbyshire: Last week they were here, now they are not. Yet the details of their epic migration are still a mystery to us

The sudden absence of something, even though you know it's coming, can dent the heart a little. The Japanese, inevitably, have a phrase for it: mono no aware, the pathos of things - and by things, in this case, I mean house martins.

Last week I had stood in the same spot, looking across the same valley. The weather then was much the same as it was today, low‑angled sunlight through patchy cloud lighting up the yellowing birch leaves and bronzing moors on the north-eastern slopes of Kinder Scout. It had picked out the spread wings of a buzzard a little below my eyeline, along with a haze of large insects, which in fact, I quickly realised, were house martins.

Exclusive: Former Brazilian environment minister warns of destruction as far-right scion favourite to become president

The former Brazilian environment minister Marina Silva has said that if Flávio Bolsonaro becomes president he will seek to finish the "perverse project" of rampant rainforest destruction initiated by his jailed far-right father.

The Amazon was thrown into chaos during Jair Bolsonaro's 2019-2022 presidency, when Brazil's environment and Indigenous protection agencies were gutted and environmental criminals ran riot, causing surges in deforestation and violence.

Marsala on island's west coast badly affected after powerful storm approached from Mediterranean

Two tornadoes have struck the coastal town of Marsala in western Sicily, injuring dozens of people, damaging buildings including a school, and overturning cars.

A series of videos began to circulate on Friday morning showing two waterspouts approaching the Sicilian town from the sea as people braced for their arrival.

Koos Bekker's Newt estate encompasses luxury hotels, pubs and high street business, with local concerns including flooding

When South African billionaire Koos Bekker bought an old country estate in a sleepy corner of Somerset to turn it into a luxury hotel, residents thought it was a sign their area was on the up.

Walking through his peaceful manicured gardens, which feature a maze of apple trees twisted into perfect shapes using the espalier method, it's easy to feel that all is well in this quiet, picturesque pocket of England.

As archaeologists find treasure trove along new floodplain, conservationists say another Nova Kakhovka would be ecocide

On a warm September day, a group of underwater archaeologists and researchers were boiling water for tea on their campfire on the banks of the Dnipro River, tents pitched on the sandy shoreline. They were three weeks into an archaeological expedition of the waters around Khortytsia - a rocky island 12.5km long and 2.5km wide that lies just downstream of the city of Zaporizhzhia, in south-eastern Ukraine.

High above the island, a Shahed drone whined on its way. A Ukrainian interceptor, and small-arms fire from the ground, tried, unsuccessfully, to bring it down. The archaeologists ignored it. This is life as normal, 28 miles (45km) from the combat zone in Russia's war on Ukraine.

This week's best wildlife photographs from around the world

'The climate issue is the security issue,' says Turkish minister at Pacific pre-Cop summit in Fiji

Wealthy countries should spend far more on dealing with the climate crisis than the 5% of GDP promised by Nato members for defence because "the climate issue is the security issue", the host of the next UN summit has said.

But, in comments that are likely to prove contentious, the Cop31 president-designate, Murat Kurum, hedged on whether countries should try to repeat a previous agreement to "transition away from fossil fuels" - the primary cause of the climate crisis - when they meet in Turkey next month.

Exclusive: Firms made more than £340m last year from processing industrial and commercial wastewater at sewage works that are unable to remove many chemical pollutants

Water companies in the UK made more than £340m in revenue last year by pouring billions of litres of industrial and commercial wastewater into sewage treatment works that experts say are not designed to remove most chemicals, leaving pollutants to pass into rivers, seas and farmland.

Water companies in England are required by law to take industrial wastewater and issue permits called "trade-effluent consents" that allow businesses to send it to sewage works, though water companies can refuse applications.

Storm expected to make landfall on US's northern Gulf coast with risk of flash floods and isolated river flooding

Isaias has become the first Atlantic hurricane of the 2026 season, with wind speeds of 80mph and a minimum pressure of 975mb. It is expected to strengthen to a category 2 hurricane as it approaches the US's northern Gulf coast on Friday, according to the National Oceanic and Atmospheric Administration (NOAA).

As a result of the strong El Niño, it has been a notably quiet Atlantic hurricane season. The first hurricane of the season has not formed this late since 8 October 1905, which pre-dates the satellite era (1960s) for tracking hurricanes that has allowed for more non-landfall hurricanes to be discovered.

Species with leaves large enough to be seen from space is already critically endangered - and plans are afoot to protect it

A chance social media encounter has led to the race-against-time discovery of a new species of giant waterlily that has until now been hidden in the depths of Colombia's jungle.

But the plant, which is so huge it is visible from space, is already considered critically endangered.

Installation of eight canopy bridges in Alta Floresta has enabled 15,000 safe crossings by animals including spider monkeys and marmosets - and more bridges are planned elsewhere

By about 7am, with dense fog blanketing the landscape, Gabriel Falquetto had already come across several road-killed animals along the ES-164 highway in Brazil's Espírito Santo state. The biologist was on his way to Kaetés private natural heritage reserve (RPPN) in the Atlantic Forest, where he monitors wildlife and roadkill.

Then he spotted the lifeless body of a primate on the pavement. It was a buffy-headed marmoset (Callithrix flaviceps), a species listed as critically endangered on the International Union for Conservation of Nature red list. An estimated 2,500 individuals remain in the wild, making it one of the world's most threatened primates.

Free-roaming Aldabra population far exceeds human population of Seychelles after decades-long recovery programme

A survey of the world's largest free-roaming giant tortoise population has discovered that the once endangered species is thriving.

A population of Aldabra giant tortoises lives on an island in Seychelles called Aldabra Atoll.

The strongest El Niño recorded is expected to bring a cascade of hazards to a state still facing wildfire and heat risks, while budget cuts have weakened disaster response agencies

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Before this year, the US National Weather Service had never issued a September coastal flood advisory for the San Francisco Bay Area. In the past month, it has had to issue two.

As flood water swallowed intersections and eroded beaches up and down the California coast last week, scientists and emergency managers warned that this is just an early signal of a coming tumultuous winter as an already exceptional El Niño continues to strengthen. It's been called everything from "super" to "Godzilla", as forecasters hammer home the message that conditions brewing in the Pacific Ocean could soon climb off the charts, and fuel extreme weather around the world.

Comebacks for wild tigers, tuna and sea turtles prove nature loss can be reversed, scientists say

Revealed: the methane mega-leaks from UN climate summit host Turkey

To cull or not to cull: Greenland debates fate of world's slowest shark

Almost a third of global greenhouse gas emissions are connected to food production. Does where you buy your fruit and vegetables still matter?

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Food miles - the distance between farm, factory and plate - gained prominence in the early 2000s. The idea was that longer, more complex supply chains caused higher emissions than food sourced closer to home. The simple solution? Buy locally grown and shop nearby.

The intervening decades have underlined other environmental concerns with the modern food system, from the emissions associated with animal agriculture to the problems of food and packaging waste.

Raijū is normally docile but gets agitated in storms and leaps up to run among the clouds, according to folklore

The Japanese raijū (thunder beast) is said to fall to Earth in a bolt of lightning. It is generally described as looking like a weasel, but is also compared to a cat, a wolf or a badger.

According to folklore the raijū is normally docile, but becomes agitated during storms and leaps up to run among the clouds. Trees struck by lightning are said to have been scratched by its claws.

Liability lawsuits have held tobacco, oil and pharma companies to account in the past. AI investors won't ignore this threat

The most basic function of government is to protect people from harm. Two growing phenomena - the climate crisis and AI - pose escalating risks of extraordinary harm.

The climate crisis is already causing floods, wildfires, drought and record heat. AI agents are already escaping super-secure environments to hack into systems they're supposed to avoid.

Robert Reich, a former US secretary of labor, is a professor of public policy emeritus at the University of California, Berkeley. He is a Guardian US columnist and his newsletter is at robertreich.substack.com. His new book, Coming Up Short: A Memoir of My America, is out now in the US and in the UK