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Category: Ecology

The plague killing frogs everywhere is far worse than scientists thought

The plague killing frogs everywhere is far worse than scientists thought

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Carl Zimmer reports: On Thursday, 41 scientists published the first worldwide analysis of a fungal outbreak that’s been wiping out frogs for decades. The devastation turns out to be far worse than anyone had previously realized. Writing in the journal Science, the researchers conclude that populations of more than 500 species of amphibians have declined significantly because of the outbreak — including at least 90 species presumed to have gone extinct. The figure is more than twice as large as…

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Heatwaves sweeping oceans ‘like wildfires’, scientists reveal

Heatwaves sweeping oceans ‘like wildfires’, scientists reveal

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The Guardian reports: The number of heatwaves affecting the planet’s oceans has increased sharply, scientists have revealed, killing swathes of sea-life like “wildfires that take out huge areas of forest”. The damage caused in these hotspots is also harmful for humanity, which relies on the oceans for oxygen, food, storm protection and the removal of climate-warming carbon dioxide the atmosphere, they say. Global warming is gradually increasing the average temperature of the oceans, but the new research is the first…

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The ocean is running out of oxygen, scientists warn

The ocean is running out of oxygen, scientists warn

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Laura Poppick writes: Escaping predators, digestion and other animal activities—including those of humans—require oxygen. But that essential ingredient is no longer so easy for marine life to obtain, several new studies reveal. In the past decade ocean oxygen levels have taken a dive—an alarming trend that is linked to climate change, says Andreas Oschlies, an oceanographer at the Helmholtz Center for Ocean Research Kiel in Germany, whose team tracks ocean oxygen levels worldwide. “We were surprised by the intensity of…

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John Ruskin: A prophet for our troubled times

John Ruskin: A prophet for our troubled times

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Philip Hoare writes: In 1964, Kenneth Clark set out the problems of loving John Ruskin. One was his fame itself. Like his sometime pupil Oscar Wilde (who, along with other of his Oxford students he persuaded to dig a road in Hinksey in order that they learn the dignity of labour), Ruskin defined the art and culture of his century. “For almost 50 years,” Clark wrote in his book, Ruskin Today, “to read Ruskin was accepted as proof of the…

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World’s food supply under ‘severe threat’ from loss of biodiversity

World’s food supply under ‘severe threat’ from loss of biodiversity

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The Guardian reports: The world’s capacity to produce food is being undermined by humanity’s failure to protect biodiversity, according to the first UN study of the plants, animals and micro-organisms that help to put meals on our plates. The stark warning was issued by the Food and Agriculture Organisation after scientists found evidence the natural support systems that underpin the human diet are deteriorating around the world as farms, cities and factories gobble up land and pump out chemicals. Over…

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How the world got hooked on palm oil

How the world got hooked on palm oil

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Paul Tullis writes: Once upon a time in a land far, far away, there grew a magical fruit. This fruit could be squeezed to produce a very special kind of oil that made cookies more healthy, soap more bubbly and crisps more crispy. The oil could even make lipstick smoother and keep ice-cream from melting. Because of these wondrous qualities, people came from around the world to buy the fruit and its oil. In the places where the fruit came…

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My generation trashed the planet. I salute the children striking back

My generation trashed the planet. I salute the children striking back

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Wow this is really quite something. Thousands and thousands of children protesting against climate change in Westminster. pic.twitter.com/umE5ZtcpS6 — Joey D'Urso (@josephmdurso) February 15, 2019 George Monbiot writes: The disasters I feared my grandchildren would see in their old age are happening already: insect populations collapsing, mass extinction, wildfires, droughts, heatwaves, floods. This is the world we have bequeathed to you. Yours is among the first of the unborn generations we failed to consider as our consumption rocketed. But those…

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Humans cannot survive without them yet within a century the world’s insects may be extinct

Humans cannot survive without them yet within a century the world’s insects may be extinct

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The Guardian reports: The world’s insects are hurtling down the path to extinction, threatening a “catastrophic collapse of nature’s ecosystems”, according to the first global scientific review. More than 40% of insect species are declining and a third are endangered, the analysis found. The rate of extinction is eight times faster than that of mammals, birds and reptiles. The total mass of insects is falling by a precipitous 2.5% a year, according to the best data available, suggesting they could…

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Insect collapse: ‘We are destroying our life support systems’

Insect collapse: ‘We are destroying our life support systems’

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The Guardian reports: “We knew that something was amiss in the first couple days,” said Brad Lister. “We were driving into the forest and at the same time both Andres and I said: ‘Where are all the birds?’ There was nothing.” His return to the Luquillo rainforest in Puerto Rico after 35 years was to reveal an appalling discovery. The insect population that once provided plentiful food for birds throughout the mountainous national park had collapsed. On the ground, 98%…

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Japan to resume commercial whaling, defying international ban

Japan to resume commercial whaling, defying international ban

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The New York Times reports: Japan said on Wednesday that it would withdraw from an international agreement and resume commercial whaling, a defiant move to prop up an industry that still has cultural significance there, despite plummeting demand for whale meat. Yoshihide Suga, Japan’s chief cabinet secretary, said the country would leave the International Whaling Commission, which established a moratorium on hunting whales that took effect in 1986. The international agreement never stopped Japanese whaling, because it allowed the country…

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Risks of ‘domino effect’ of ecological tipping points greater than thought, study says

Risks of ‘domino effect’ of ecological tipping points greater than thought, study says

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The Guardian reports: Policymakers have severely underestimated the risks of ecological tipping points, according to a study that shows 45% of all potential environmental collapses are interrelated and could amplify one another. The authors said their paper, published in the journal Science, highlights how overstressed and overlapping natural systems are combining to throw up a growing number of unwelcome surprises. “The risks are greater than assumed because the interactions are more dynamic,” said Juan Rocha of the Stockholm Resilience Centre….

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Rapid warming caused largest extinction event ever on Earth, report says

Rapid warming caused largest extinction event ever on Earth, report says

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The Guardian reports: Rapid global warming caused the largest extinction event in the Earth’s history, which wiped out the vast majority of marine and terrestrial animals on the planet, scientists have found. The mass extinction, known as the “great dying”, occurred around 252m years ago and marked the end of the Permian geologic period. The study of sediments and fossilized creatures show the event was the single greatest calamity ever to befall life on Earth, eclipsing even the extinction of…

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Portrait of the Earth at the threshold of climate catastrophe

Portrait of the Earth at the threshold of climate catastrophe

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The Guardian reports: On Sunday morning hundreds of politicians, government officials and scientists will gather in the grandeur of the International Congress Centre in Katowice, Poland. It will be a familiar experience for many. For 24 years the annual UN climate conference has served up a reliable diet of rhetoric, backroom talks and dramatic last-minute deals aimed at halting global warming. But this year’s will be a grimmer affair – by far. As recent reports have made clear, the world…

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The insect apocalypse is here. What does it mean for the rest of life on Earth?

The insect apocalypse is here. What does it mean for the rest of life on Earth?

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Brooke Jarvis reports: Sune Boye Riis was on a bike ride with his youngest son, enjoying the sun slanting over the fields and woodlands near their home north of Copenhagen, when it suddenly occurred to him that something about the experience was amiss. Specifically, something was missing. It was summer. He was out in the country, moving fast. But strangely, he wasn’t eating any bugs. For a moment, Riis was transported to his childhood on the Danish island of Lolland,…

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The health of an ecosystem (including your home) depends on its biodiversity

The health of an ecosystem (including your home) depends on its biodiversity

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William Foster writes: Rob Dunn invites us on a safari in pursuit of the wildlife teeming on our bodies and in every corner of our homes. For him, the creatures that sprawl in the human navel and under the bathroom shower head elicit the kind of wonder most of us would feel only on seeing the denizens of Tanzania’s Ngorongoro Crater or the Great Barrier Reef off Australia. Dunn is more than an informed and entertaining commentator, a David Attenborough…

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Stop biodiversity loss or we could face our own extinction, warns UN

Stop biodiversity loss or we could face our own extinction, warns UN

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The Guardian reports: The world must thrash out a new deal for nature in the next two years or humanity could be the first species to document our own extinction, warns the United Nation’s biodiversity chief. Ahead of a key international conference to discuss the collapse of ecosystems, Cristiana Pașca Palmer said people in all countries need to put pressure on their governments to draw up ambitious global targets by 2020 to protect the insects, birds, plants and mammals that…

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