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Tundra News
July 30, 2023

Top Headlines

Genome Analysis of 46,000-Year-Old Roundworm from Siberian Permafrost Reveals Novel Species

Some organisms, such as tardigrades, rotifers, and nematodes, can survive harsh conditions by entering a dormant state known as 'cryptobiosis.' In 2018, researchers found two roundworms (nematode) species in the Siberian Permafrost. Radiocarbon ...

Arctic Terns May Navigate Climate Dangers

Arctic terns -- which fly on the longest migrations of any animal on Earth -- may be able to navigate the dangers posed by climate change, new research ...

Earlier and Earlier High-Arctic Spring Replaced by 'Extreme Year-to-Year Variation'

About 15 years ago, researchers reported that the timing of spring in high-Arctic Greenland had advanced at some of the fastest rates of change ever seen anywhere in the world. But, according to new evidence, that earlier pattern has since been ...

Shrinking Arctic Glaciers Are Unearthing a New Source of Methane

As the Arctic warms, shrinking glaciers are exposing bubbling groundwater springs which could provide an underestimated source of the potent greenhouse gas methane, finds new ...
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Greenhouse Gas Release from Permafrost Is Influenced by Mineral Binding Processes

New insights into the binding of carbon to mineral particles in permafrost can improve the prediction of greenhouse gas ...

Less Ice, Fewer Calling Seals

For several years, a team of researchers used underwater microphones to listen for seals at the edge of the Antarctic. Their initial findings indicate that sea-ice retreat has had significant effects ...

Increased Droughts Are Disrupting Carbon-Capturing Soil Microbes, Concerning Ecologists

Soil stores more carbon than plants and the atmosphere combined, and soil microbes are largely responsible for putting it there. However, the increasing frequency and severity of drought, such as ...

World's Biggest Cumulative Logjam, Newly Mapped in the Arctic, Stores 3.4 Million Tons of Carbon

Throughout the Arctic, fallen trees make their way from forests to the ocean by way of rivers. Those logs can stack up as the river twists and turns, resulting in long-term carbon storage. A new ...

As Rising Temperatures Affect Alaskan Rivers, Effects Ripple Through Indigenous Communities

Six decades of river gage data gathered from nine rivers in Alaska highlight the cumulative and consequential impacts of climate change for local communities and ecosystems in the ...

Woolly Mammoths Evolved Smaller Ears and Woolier Coats Over the 700,000 Years That They Roamed the Siberian Steppes

A team of researchers compared the genomes of woolly mammoths with modern day elephants to find out what made woolly mammoths unique, both as individuals and as a species. The investigators report ...

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研究人员与北极Warming to Extreme Winter Weather in Midlatitude and Its Future

A warmer Arctic has been linked to extreme winter weather in the midlatitude regions. But, it is not clear how global warming affects this link. In a new study, researchers show, using weather data ...

Legacy Industrial Contamination in the Arctic Permafrost

A previously underestimated risk lurks in the frozen soil of the Arctic. When the ground thaws and becomes unstable in response to climate change, it can lead to the collapse of industrial ...

Warming Arctic Draws Marine Predators Northwards

海洋食肉动物的活动范围扩大到the Arctic waters over the last twenty years, driven by climate change and associated increases in ...

Surprise Effect: Methane Cools Even as It Heats

大多数气候模型还不占recent discovery: methane traps a great deal of heat in Earth's atmosphere, but also creates cooling clouds that offset 30% of the ...

Humans Are Leaving Behind a 'Frozen Signature' of Microbes on Mount Everest

Thanks to technological advances in microbial DNA analysis, researchers have discovered that mountaineers' boots aren't the only things leaving footprints on the world's tallest ...

Researchers Find Decaying Biomass in Arctic Rivers Fuels More Carbon Export Than Previously Thought

A new study found that plants and small organisms in Arctic rivers could be responsible for more than half the particulate organic matter flowing to the Arctic Ocean. That's a significantly ...

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Arctic Climate Modelling Too Conservative

Climate models used by the UN's IPCC and others to project climate change are not accurately reflecting what the Arctic's future will be, experts ...

Arctic River Channels Changing Due to Climate Change

A team of international researchers have found that the rivers in Arctic Canada and Alaska are not behaving as expected in response to the warming climate. The study focused on large rivers in the ...

Life in the Smoke of Underwater Volcanoes

Disconnected from the energy of the sun, the permanently ice-covered Arctic deep sea receives miniscule amounts of organic matter that sustains life. Bacteria which can harvest the energy released ...

On a Warming Planet, These Arctic Geese Rapidly Found (and Shared) a New Migratory Route

As the planet warms, animals that breed in the Arctic are at particular risk. But a new study offers some encouraging news: in an apparent reaction to pressures along their former migratory route, a ...

As Sea Ice Declines in the Arctic, Bowhead Whales Are Adjusting Their Migration Patterns

As sea ice declines in the Arctic, bowhead whales are staying north of the Bering Strait more frequently, a shift that could affect the long-term health of the bowhead population and impact the ...

Sinking Tundra Surface Unlikely to Trigger Runaway Permafrost Thaw

Scientists set out to address one of the biggest uncertainties about how carbon-rich permafrost will respond to gradual sinking of the land surface as temperatures rise. Using a high-performance ...

New Technique Maps Large-Scale Impacts of Fire-Induced Permafrost Thaw in Alaska

Researchers have developed a machine learning-based ensemble approach to quantify fire-induced thaw settlement across the entire Tanana Flats in Alaska, which encompasses more than 3 million acres. ...

Plastic Debris in the Arctic Comes from All Around the World

In the course of five years, citizens who went on sailing cruises to the Arctic surveyed and collected plastic debris that had washed up on the shores of Svalbard. This has now been analyzed. ...

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