The rice of the sea: how a tiny grain could change the way humanity eats

Ángel León made his name serving innovative seafood. But then he discovered something in the seagrass that could transform our understanding of the sea itself – as a vast garden

Growing up in southern Spain, Ángel León paid little attention to the meadows of seagrass that fringed the turquoise waters near his home, their slender blades grazing him as he swam in the Bay of Cádiz.

It was only decades later – as he was fast becoming known as one of the country’s most innovative chefs – that he noticed something he had missed in previous encounters with Zostera marina: a clutch of tiny green grains clinging to the base of the eelgrass.

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Snared: catching poachers to save Italy’s songbirds

With five million birds a year illegally caught in Italy, activists in Brescia are teaming up with local police to trap the hunters

After two hours of scouring the mountains of Brescia, Stefania Travaglia finally finds what she is looking for. Among the remote farmhouses of an alpine hamlet, a spring-net trap is partially hidden behind a grassy embankment and a few trees. Tangled in the wire mesh, an exhausted fieldfare thrush sits silent and unmoving.

Travaglia sets to work quickly and quietly, hiding two motion-sensor cameras next to the trap. Clear evidence of wrongdoing is needed to catch a poacher. “You have to see everything: you have to see the trap; you have to see the person; and if there is a bird in it,” she says.

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China’s vast bitcoin mining empire risks derailing its climate targets, says study

China powers nearly 80% of the global cryptocurrencies trade, but the energy required could jeopardise its pledge to peak carbon emissions by 2030

China’s electricity-hungry bitcoin mines that power nearly 80% of the global trade in cryptocurrencies risk undercutting the country’s climate goals, a study in the journal Nature has said.

Bitcoin and other cryptocurrencies rely on “blockchain” technology, which is a shared database of transactions, with entries that must be confirmed and encrypted. The network is secured by individuals called “miners” who use high-powered computers to verify transactions, with bitcoins offered as a reward. Those computers consume enormous amounts of electricity.

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‘They are living maps’: how Richard Mosse captured environmental damage in the Amazon

In a new set of photos, environmental degradation in the Amazon is explored to shine light on ‘a hideously complex story’

In his 20s, Irish photographer Richard Mosse made his first foray into photojournalism by capturing postwar Balkan nations. This experience led to a realisation that the medium was inadequately suited to capture complex, layered narratives. “You have to put the thing in front of the camera, and when that thing is an abstraction, far bigger than a human figure, it’s very difficult to do,” he explained in a recent podcast with Monocle.

The subjects he found himself covering over the next two decades were equally abstract and complex as the first, ranging from conflict in DR Congo to the refugee crisis in Europe. However, in his search for ways to subvert the medium and bend it to his will, he eventually managed to create his own unique brand of photography, characterised by the use of infra-red film and other technology rooted in military reconnaissance.

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Best served chilled: green tech keeps the cool on India’s dairy farms – photo essay

Photographer Prashanth Vishwanathan captured a network of community dairies helping off-grid farmers in Maharashtra keep milk fresh as temperatures rise. All pictures are from Climate Visuals

As global temperatures climb, a lack of refrigeration makes a big impact on people trying to make a living from farming. Especially dairy farms.

There are more than 75 million smallholder dairy farmers in India. Most are in off-grid areas without refrigeration, or reliant on expensive and polluting diesel generators. This locks people out of national supply chains, and farmers have to spend hours transporting milk to markets, or sell at a lower price to middlemen. In Maharashtra, western India, a network of community dairies has been set up, using sustainable refrigeration technology, where people can bring their milk to be tested, chilled, and sold on.

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Florida faces ‘imminent’ pollution catastrophe from phosphate mine pond

  • Millions of gallons of toxic wastewater pumped into Tampa Bay
  • Governor DeSantis at scene as ‘20ft wall of water’ is feared

Work crews were pumping millions of gallons of contaminated wastewater into an ecologically sensitive Florida bay on Sunday, as they tried to prevent the “imminent” collapse of a storage reservoir at an old phosphate mine.

Officials in Manatee county extended an evacuation zone overnight and warned that up to 340m gallons could engulf the area in “a 20ft wall of water” if they could not repair the breach at the Piney Point reservoir in the Tampa Bay area, north of Bradenton.

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Rewilding our cities: beauty, biodiversity and the biophilic cities movement

Buildings covered in plants do more than just make the cityscape attractive – they contribute to human wellbeing, biodiversity, and action on climate change

Our cities are dominated by glass-faced edifices that overheat like greenhouses then guzzle energy to cool down. Instead, we could have buildings that are intimately connected to the living systems that have evolved with us, that celebrate the human-nature connection that is central to our wellbeing.

As more of us in Australia live in urban areas and our cities grow, bringing nature into our cities is a key part of establishing and rebuilding that connection. As well as bringing beauty into urban environments, we know that people are healthier when they are connected to nature. Research also shows that crime rates decrease in areas with street trees and that property values increase.

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If you like salmon, don’t read this: the art duo exposing a booming £1bn market

Farmed salmon can end up deformed, blind, riddled with sea lice and driven to eat each other. Eco art activists Cooking Sections are highlighting their plight – and getting Tate to change its menus

A few months back, a book arrived in the post – tiny, not much larger than a bank card. Though the cover was grey, its pages were a riot of pinks, from deepest persimmon to pale rose. Printed on them were dense, technical essays referencing everything from fish farming to Adam Smith’s The Wealth of Nations. The title was Salmon: A Red Herring.

Fish is an unexpected topic for an art book – but then the duo who created this little volume, Daniel Fernández Pascual and Alon Schwabe, aren’t really going for the coffee-table market. Operating under the name Cooking Sections, the pair have a thing for food. Their art is about what we eat and its impact on the Earth.

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Endangered North Atlantic right whales produce most calves since 2015

  • Scientists caution high death rate is outpacing births
  • Population of whales estimated at around 360

North Atlantic right whales gave birth over the winter in greater numbers than scientists have seen since 2015, an encouraging sign for researchers who became alarmed three years ago when the critically endangered species produced no known offspring at all.

Related: The new humpback? Calf sighting sparks hope for imperilled right whale

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Canada’s herring facing ‘biological decimation’, say First Nations and activists

Herring off western coast will ‘teeter on edge of complete collapse’ if commercial fishing continues at current level, says report

First Nations and conservationists are warning that Pacific herring populations are “collapsing” off Canada’s western coast, and are appealing for a moratorium on commercial fishing until the critical species can rebuild.

Emmie Page, a marine campaigner with the organization Pacific Wild, said in the past, five large commercial herring fisheries opened each year on the coast.

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China sandstorms highlight threat of climate crisis

Experts say extreme weather including droughts will become more common as planet heats

Recent sandstorms that shrouded Beijing in a post-apocalyptic orange haze and intensive droughts in other parts of the country are bringing into stark relief the challenges China faces from rising temperatures induced by the climate crisis.

The widespread sandstorms that pelted the capital and spread as far as central China for several days in mid-March and again at the end of the month were brought on by lower than average snow cover and precipitation, as well as higher than normal temperatures and winds across Mongolia and northern China.

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Toxic impact of pesticides on bees has doubled, study shows

Analysis contradicts claims that the environmental impact of pesticides is falling, say scientists

The toxic impact of pesticides on bees and other pollinators has doubled in a decade, new research shows, despite a fall in the amount of pesticide used.

Modern pesticides have much lower toxicity to people, wild mammals and birds and are applied in lower amounts, but they are even more toxic to invertebrates. The study shows the higher toxicity outweighs the lower volumes, leading to a more deadly overall impact on pollinators and waterborne insects such as dragonflies and mayflies.

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Net gains: how India trawlers’ plastic catch is helping to rebuild roads

The waste caught by fishing boats used to be thrown back into the sea but in Kerala it is now turned into black gold

For years, plastic caught by fishing communities on the Kollam coast in India’s southern state of Kerala was thrown back into the water, damaging aquatic ecosystems and killing fish.

But fishers are spearheading an innovative initiative to clean up the ocean – along with their daily hauls of fish, they pull in and collect the waste that gets enmeshed in their nets.

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Seaspiracy: Netflix documentary accused of misrepresentation by participants

NGOs and experts quoted in film say it contains ‘misleading’ claims, erroneous statistics and out-of-context interviews

A Netflix documentary about the impact of commercial fishing has attracted celebrity endorsements and plaudits from fans with its damning picture of the harm the industry does to ocean life. But NGOs, sustainability labels and experts quoted in Seaspiracy have accused the film-makers of making “misleading claims”, using out-of-context interviews and erroneous statistics.

Seaspiracy, made by the team behind the award-winning 2014 film Cowspiracy, which was backed by Leonardo DiCaprio, pours doubt on the idea of sustainable fishing, shines a spotlight on the aquaculture industry and introduces the notion of “blood shrimp”, seafood tainted with slave labour and human rights abuses.

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We sampled tap water across the US – and found arsenic, lead and toxic chemicals

In a nine-month investigation by the Guardian and Consumer Reports we found forever chemicals, arsenic and lead in samples taken across the US

In Connecticut, a condo had lead in its drinking water at levels more than double what the federal government deems acceptable. At a church in North Carolina, the water was contaminated with extremely high levels of potentially toxic PFAS chemicals ( a group of compounds found in hundreds of household products). The water flowing into a Texas home had both – and concerning amounts of arsenic too.

All three were among locations that had water tested as part of a nine-month investigation by Consumer Reports (CR) and the Guardian into the US’s drinking water.

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John Barilaro attacks Turnbull over ‘war on Coalition’ and says NSW ‘firmly committed’ to coal

NSW deputy premier says ‘there will be no moratorium on coal in the Upper Hunter or anywhere else in the state’

The New South Wales deputy premier, John Barilaro, has rejected Malcolm Turnbull’s call for a moratorium on new coalmines in the state and demanded the former prime minister “set aside his war on the Coalition”.

Turnbull said on Wednesday he believed coalmine proposals and approvals in the state’s upper Hunter Valley were “out of control”.

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Urgent policies needed to steer countries to net zero, says IEA chief

Economies are gearing up for return to fossil fuel use instead of forging green recovery, warns Fatih Birol

New energy policies are urgently needed to put countries on the path to net zero greenhouse gas emissions, the world’s leading energy economist has warned, as economies are rapidly gearing up for a return to fossil fuel use instead of forging a green recovery from the Covid-19 pandemic.

Most of the world’s biggest economies now have long-term goals of reaching net zero by mid-century, but few have the policies required to meet those goals, said Fatih Birol, the executive director of the International Energy Agency (IEA).

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Green investing ‘is definitely not going to work’, says ex-BlackRock executive

Tariq Fancy once oversaw the start of the biggest effort to turn Wall Street ‘green’ – but now believes the climate crisis can never be solved by today’s free markets

From his desk in midtown Manhattan Tariq Fancy once oversaw the beginning of arguably the biggest, most ambitious, effort ever to turn Wall Street “green”. Now, as environmentally friendly investing grows at an exponential rate, Fancy has come to a stark conclusion: “This is definitely not going to work.”

As the former chief investment officer for sustainable investing at BlackRock, the world’s largest asset manager, Fancy was charged with embedding environmental, social and governance (ESG) corporate policies across the investment giant’s portfolio.

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