Category Environment

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Could urban farming feed the world?

From back gardens to hi-tech hydroponics, the future of food doesn’t have to be rural

In 1982, artist Agnes Denes planted 2.2 acres of wheat on waste ground in New York’s Battery Park, near the recently completed World Trade Center. The towers soared over a golden field, as if dropped into Andrew Wyeth’s bucolic painting Christina’s World. Denes’s Wheatfield: A Confrontation was a challenge to what she called a “powerful paradox”: the absurdity of hunger in a wealthy world.

The global population in 1982 was 4.6 billion. By 2050, it will be more than double that, and the prospect of feeding everyone looks uncertain. Food insecurity already affects 2.3 billion people. Covid-19 and extreme weather have revealed the fragility of the food system. Denes was called a prophet for drawing attention to ecological breakdown decades before widespread public awareness. But perhaps she was prophetic, too, in foreseeing how we would feed ourselves. By 2050, more than two-thirds of us will live in cities. Could urban farming feed 10 billion?

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Should we treat environmental crime more like murder?

Serial killers and violent criminals dominate the headlines. What if we covered ecocide and pollution in the same way?

Whenever you read, watch, or listen to the news, you’re likely to be exposed to stories of violence and murder. As a criminal psychologist, I’m often asked to comment on these cases to pick apart the motives of the perpetrators. People want these kinds of insights because murders feel frightening and horrifying, but also oddly compelling. There’s a level of focus and fascination, and the way these crimes are covered profoundly influences our perception of what the most urgent problems facing society are.

One day it struck me that the world would be a very different place if environmental crimes were treated in the same way as murders. So, why aren’t they? And should they be?

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If Anyone Builds it, Everyone Dies review – how AI could kill us all

If machines become superintelligent we’re toast, say Eliezer Yudkowsky and Nate Soares. Should we believe them?

What if I told you I could stop you worrying about climate change, and all you had to do was read one book? Great, you’d say, until I mentioned that the reason you’d stop worrying was because the book says our species only has a few years before it’s wiped out by superintelligent AI anyway.

We don’t know what form this extinction will take exactly – perhaps an energy-hungry AI will let the millions of fusion power stations it has built run hot, boiling the oceans. Maybe it will want to reconfigure the atoms in our bodies into something more useful. There are many possibilities, almost all of them bad, say Eliezer Yudkowsky and Nate Soares in If Anyone Builds It, Everyone Dies, and who knows which will come true. But just as you can predict that an ice cube dropped into hot water will melt without knowing where any of its individual molecules will end up, you can be sure an AI that’s smarter than a human being will kill us all, somehow.

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Why antibiotics are like fossil fuels

They helped create the modern world but are dangerously overused. How can we harness them sustainably?

In 1954, just a few years after the widespread introduction of antibiotics, doctors were already aware of the problem of resistance. Natural selection meant that using these new medicines gave an advantage to the microbes that could survive the assault – and a treatment that worked today could become ineffective tomorrow. A British doctor put the challenge in military terms: “We may run clean out of effective ammunition. Then how the bacteria and moulds will lord it.”

More than 70 years later, that concern looks prescient. The UN has called antibiotic resistance “one of the most urgent global health threats”. Researchers estimate that resistance already kills more than a million people a year, with that number forecast to grow. And new antibiotics are not being discovered fast enough; many that are essential today were discovered more than 60 years ago.

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Look up: five hopeful novels about the climate crisis

Can fiction make us more optimistic about tackling Earth’s environmental emergency? These eco-focused books have hope at their core

‘Can literature be a tool to encourage something better – creating eco-topia on the page, so it might be imagined off it?” asks the novelist Sarah Hall in this weekend’s Guardian magazine. Climate fiction – or “cli-fi” – continues to grow as a genre in its own right; the first Climate fiction prize was awarded this year. And while the roots of environmental fiction are in apocalypse and despair, these five writers are moving beyond dystopia to hopeful possibilities.

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Blue sky thinking: why we need positive climate novels

Environmental fiction is booming – but can it move beyond dystopia to a brighter vision of the future?

Nearly a quarter of a century ago when I published my first novel, Haweswater, about the impact of dam-building in north-west England, nature writing felt quite different, at least for me. Several landmark novels about climate apocalypse and survivalism had been published, including Z for Zachariah by Robert C O’Brien and The Death of Grass by John Christopher, but there was no imperative to write about such things. These stories involved anomalistic catastrophes – a mutated virus, nuclear war – and they were very bleak. They resonated but also seemed unusual. At the other end of the scale, Ben Elton’s Stark had comedically outlined the nature of oligarchic greed, resource consumption, and the ruination we were hurtling towards, while the Bezos and Musk equivalents could head off-world – not quite so funny now.

The public knew about climate issues, though terminology often stressed them individually – ozone depletion, greenhouse warming, desertification, coral bleaching – rather than total Earth systems breakdown. Disparate, visionary science fictions didn’t indicate a genre movement yet. There was a luxury of choice regarding stories related to nature – no elephant in the room (or polar bear), if you didn’t tackle climate-change concerns.

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The Lost Elms by Mandy Haggith review – cultural history of a noble tree

Despite the ravages of Dutch elm disease, these once ubiquitous features of our landscape still loom large

Just as the Spanish flu pandemic of 1918 did not originate in Spain, so Dutch elm disease is no fault of the Netherlands. It acquired the name thanks to the pioneering efforts of three Dutch scientists – Marie Beatrice Schol-Schwarz, Christine Buisman and Johanna Westerdijk – who identified the beetle-transported fungus that causes it in the 1920s.

Nor is the so-called “English elm” (Ulmus minor) really English, inasmuch as it is thought to have been transferred here from Italy, so Reform UK party enthusiasts should probably agitate to repatriate all such specimens. More confidently thought native to these isles is the wych elm (from the Old English for “supple”) or Scots elm, which has long been thought to have healing and protective qualities.

Our scholarly guide to this noble plant, Mandy Haggith, delves enthusiastically into such lore. The 17th-century English herbalist Nicholas Culpeper said that elm was connected to the planet Saturn and that its leaves could fix broken bones. Modern “healers” promise that drinking a decoction of elm bark can purge phlegm and stop diarrhoea. Haggith cites a present-day “Massachusetts-based herbalist and druid” who claims that slippery elm milk is good for insomnia.

It would be unkind to call this sort of thing merely barking. The author insists that “a western scientific worldview” (in other words, a scientific worldview, shared by scientists in China and India) “is absolutely not the only way forests can be thought about”, which is fair enough. But the fake cures of the “wellness” industry are not without their own ecological downsides: as Haggith writes later, fashionable pseudo-remedies gone viral on TikTok or whatever can inspire the stripping of bark from healthy trees at injurious scale.

Happily, elmwood was not only the preserve of quacks; it was also a sought-after material in shipbuilding (most of the hull of the fast clipper Cutty Sark was made of rock elm), and long before that for making spears and bows: an iron age Celtic tribe was known as “the ones who vanquish by the elm” (Lemovices). Medieval London, Bristol and other cities had running water delivered by mains pipes of elm. And elm is also the source of a famous insult: when the great Samuel Johnson claimed that there was no Gaelic literature, a poet responded with the Gaelic for “your head is made entirely of elm, especially your tongue and your gums”.

Luckily, although Dutch elm disease has killed hundreds of millions of trees since the early 20th century, the species is not lost, or even on the brink of extinction. Brighton, Haggith sees, is managing the blight well through city-wide surveillance and timely surgery. And the fossil record suggests that elms have previously suffered waves of pandemic disease before bouncing back. There will be time for more poetic mentions of elms of the kind the author rather exhaustively collects towards the end. (“Robert Frost was a big fan of elm trees …”)

But the greater part of this book’s devotion, and its delight, is reserved for living specimens in their habitats. Two rows of elms, Haggith notes, can form a “corridor for wildlife, dog walkers and feral children”, or “a church-like nave, an arch-shaped cloister that draws the eye” towards a monastery in Beauly. A cheerfully self-described “tree-hugger”, she is inspired to her best writing by close observation of the trees themselves. On an elm growing horizontally out of the rock near a Scottish loch: “I stand beneath it, neck craned in awe, looking up into the lush green profusion of its living community. It is winter, so all this greenery isn’t the tree’s own leaves, but photosynthesising life using it as a climbing frame”. Elsewhere she finds beauty even in a diseased log, happily noting the “beautiful doily pattern made by the brood-chamber and feeding passages of the grubs”.

And her enthusiasm is contagious. As someone who began this book with literally no idea what an elm looks like, I was inspired to download the Woodland Trust tree-ID app and resolve to pay more attention to our ligneous friends.

• The Lost Elms: A Love Letter to Our Vanished Trees by Mandy Haggith is published by Headline (£22). To support the Guardian buy a copy at guardianbookshop.com. Delivery charges may apply.

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