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Category: Environment

Antarctica warming much faster than models predicted in ‘deeply concerning’ sign for sea levels

Antarctica warming much faster than models predicted in ‘deeply concerning’ sign for sea levels

The Guardian reports: Antarctica is likely warming at almost twice the rate of the rest of the world and faster than climate change models are predicting, with potentially far-reaching implications for global sea level rise, according to a scientific study. Scientists analysed 78 Antarctic ice cores to recreate temperatures going back 1,000 years and found the warming across the continent was outside what could be expected from natural swings. In West Antarctica, a region considered particularly vulnerable to warming with…

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All lifeforms, from worms to corals, transform the planet

All lifeforms, from worms to corals, transform the planet

Olivia Judson writes: I want to start with a proposition: if Earth had never come alive, it would be a profoundly different world. Conversely: the planet of today has, to a remarkable extent, been made what it is by the activities of lifeforms. Over the course of the planet’s long history, a history that extends back more than 4.5 billion years, lifeforms have shaped the rocks, the water, the air, even the colour of the sky. A Never-Life Earth would not even…

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Overuse is draining and damaging aquifers nationwide

Overuse is draining and damaging aquifers nationwide

The New York Times reports: Groundwater loss is hurting breadbasket states like Kansas, where the major aquifer beneath 2.6 million acres of land can no longer support industrial-scale agriculture. Corn yields have plummeted. If that decline were to spread, it could threaten America’s status as a food superpower. Fifteen hundred miles to the east, in New York State, overpumping is threatening drinking-water wells on Long Island, birthplace of the modern American suburb and home to working class towns as well…

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Teaching endangered ibises a new and safer migration path

Teaching endangered ibises a new and safer migration path

The New York Times reports: Johannes Fritz, a maverick Austrian biologist, needed to come up with a plan, again, if he was going to prevent his rare and beloved birds from going extinct. To survive the European winter, the northern bald ibis — which had once disappeared entirely from the wild on the continent — needs to migrate south for the winter, over the Alps, before the mountains become impassable. But shifting climate patterns have delayed when the birds begin…

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Human activities — not volcanic eruptions — are the primary cause of climate change

Human activities — not volcanic eruptions — are the primary cause of climate change

Patrick Pester writes: The Hunga Tonga-Hunga Ha’apai eruption in January 2022 was one of the biggest volcanic eruptions in recorded history. Detonating underwater with the force of 100 Hiroshima bombs, the blast sent millions of tons of water vapor high into the atmosphere. Some commentators have speculated in recent weeks that the volcano is to blame for searing summer temperatures and are even using the volcano to cast doubt on the role humans are playing in climate change, as reported…

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What happens when the heat repeats?

What happens when the heat repeats?

Kylie Mohr writes: For two years now, scientists, shellfish managers, and tribes have been working to understand how the heat dome that settled over the Pacific Northwest in the summer of 2021 affected the places where the ocean and land meet. That heat wave was like nothing in memory. Temperatures soaring as high as 121 degrees Fahrenheit buckled roads, melted power cables, and scorched forests. By the time the heat subsided, 650 people had died in the U.S. and Canada,…

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Environmental activists are fleeing Elon Musk’s Twitter

Environmental activists are fleeing Elon Musk’s Twitter

Quartz reports: Scientists and environmental activists have been fleeing Twitter—now called X—after Elon Musk bought the social platform and took a wrecking ball to its innards. A study (pdf) published in a journal called Trends in Evolution and Ecology on Aug.15 showed, that out of a sample of 380,000 environmentally oriented X users, “nearly 50% became inactive” after Musk’s acquisition. This rate, the researchers found, was “much higher than a control sample.” By April 2023, only 52.5% of sampled environmental activists on X were still active. The study was conducted between Dec. 2022 and May 2023. Days after…

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Light pollution and drought are pushing fireflies toward extinction

Light pollution and drought are pushing fireflies toward extinction

CBS News reports: Fireflies are the romantics of the insect world. In the summer months, they emerge from the ground with love on the brain. They only live for two to three weeks once they’ve become full adults and in that time they don’t even eat. They’re too busy flirting. Fireflies — or lightning bugs, depending on where you grew up — are one of the only insects with elaborate courtship dialogues, said Avalon Owens, a research fellow at Harvard….

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Dead trees around the world are shocking scientists

Dead trees around the world are shocking scientists

Katarina Zimmer writes: As we hang far above the ground on a sunny October day, it would be easy to focus on the blue crests of hills and the small towns tucked in between. But Richard Peters, who’s with me inside a metal gondola mounted onto the maneuverable arm of a crane, points me instead to the tree canopy below, flushed with the gold and copper shades of fall. “That guy is definitely on his way to die,” he says…

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Ancient fires, spurred by human activity, drove large mammals extinct, study suggests

Ancient fires, spurred by human activity, drove large mammals extinct, study suggests

The New York Times reports: Wildfires are getting worse. Parts of the United States, scientists say, are experiencing wildfires three times as often — and four times as big — as they were 20 years ago. This summer alone, smoke from Canadian blazes turned North American skies an unearthly orange, “fire whirls” were seen in the Mojave Desert and raging flames in Maui led to disaster. Records of the distant past can reveal what once drove increased fire activity and…

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Canada’s raging fires have burned an area larger than Greece

Canada’s raging fires have burned an area larger than Greece

The Washington Post reports: Wildfires continue to rage in Canada, burning twice as much land as any previous season, an area equivalent to Alabama or nine Connecticuts. The blazes have charred nearly 33 million acres (13.3 million hectares) across the country, with hundreds of large fires still burning. The situation is not improving. Fires from coast-to-coast have stretched firefighting forces thin, requiring help from the Canadian military. Several massive conflagrations in the Northwest Territories have imperiled a number of towns…

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We are in an age of fire

We are in an age of fire

Caroline Mimbs Nyce writes: To see fire weather—hot, dry, windy conditions—in Hawaii this time of year is not unusual, Ian Morrison, a meteorologist in the National Weather Service’s Honolulu forecast office, told me. The NWS had issued a red-flag warning for the area, which indicates to local residents and officials alike that wildfire potential is high. According to the U.S. Drought Monitor, the majority of Maui is also abnormally dry or in drought; the western side in particular was parched,…

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Amazon deforestation falls over 60% compared with last July, says Brazilian minister

Amazon deforestation falls over 60% compared with last July, says Brazilian minister

The Guardian reports: Deforestation in the Brazilian Amazon fell by at least 60% in July compared to the same month last year, the environment minister, Marina Silva, has told the Guardian. The good news comes ahead of a regional summit that aims to prevent South America’s largest biome from hitting a calamitous tipping point. The exact figure, which is based on the Deter satellite alert system, will be released in the coming days, but independent analysts described the preliminary data…

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Ocean heat record broken, with grim implications for the planet

Ocean heat record broken, with grim implications for the planet

BBC News reports: The oceans have hit their hottest ever recorded temperature as they soak up warmth from climate change, with dire implications for our planet’s health. The average daily global sea surface temperature beat a 2016 record this week, according to the EU’s climate change service Copernicus. It reached 20.96C (69.73F) – far above the average for this time of year. Oceans are a vital climate regulator. They soak up heat, produce half Earth’s oxygen and drive weather patterns….

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How Costa Rica saved its biodiversity

How Costa Rica saved its biodiversity

CNN reports: Pedro Garcia nurses a plate of seeds on his lap. “This is my legacy,” he says, tenderly picking up the seed of a mountain almond – a tree which can grow up to 60 meters (200 feet) tall and is a favored nesting spot for the endangered great green macaw. Aged 57, Garcia has worked on his seven-hectare plot, El Jicaro, in northeast Costa Rica’s Sarapiqui region for 36 years. In his hands it has turned from bare…

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Modern ‘sixth mass extinction’ event will be worse than first predicted, says report

Modern ‘sixth mass extinction’ event will be worse than first predicted, says report

GrrlScientist writes: Tragically, the global mass extinction event that we find ourselves in the midst of will be even worse than originally predicted, according to a recent study (ref). The international team of scientists came to their conclusion after analyzing population trends data for more than 71,000 animal species — including mammals, birds, reptiles, amphibians, fish and insects — from around the world to see how their numbers have changed since record-keeping first began. Generally, scientists agree that an extinction…

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