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Ice Ages News
September 28, 2020

Top Headlines
 

Coldest Northern Hemisphere Temps of Minus 69.6 Degress Celsius: Greenland, 1991

Nearly 30 years after recording a temperature of minus 93.2 degrees Fahrenheit (minus 69.6 Celsius) in Greenland, the measurement has been verified ...

Island-Building in Southeast Asia Created Earth's Northern Ice Sheets

Tectonic processes are thought to have triggered past ice ages, but how? A new analysis of mountain building in the maritime tropics of Southeast Asia attributes the last ice age, which reached a ...

Stability Check on Antarctica Reveals High Risk for Long-Term Sea-Level Rise

The warmer it gets, the faster Antarctica loses ice - and much of it will then be gone forever. That's what a team of researchers has found out in ...

Some Polar Bears in Far North Are Getting Short-Term Benefit from Thinning Ice

The small subpopulation of polar bears in Kane Basin were doing better, on average, in recent years than in the 1990s. The bears are experiencing ...
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Arctic Transitioning to a New Climate State

The fast-warming Arctic has started to transition from a predominantly frozen state into an entirely different climate with significantly less sea ice, warmer temperatures, and more rain, according ...

Scientists have compiled a continuous, high-fidelity record of variations in Earth's climate extending 66 million years into the past. The record reveals four distinctive climate states, which ...

Humans, Not Climate, Have Driven Rapidly Rising Mammal Extinction Rate

Human impact can explain ninety-six percent of all mammal species extinctions of the last hundred thousand years, according to a new ...

Deep Channels Link Ocean to Antarctic Glacier

Newly discovered deep seabed channels beneath Thwaites Glacier in West Antarctica may be the pathway for warm ocean water to melt the underside of the ice. Data from two research missions, using ...

Ancient Hunters Stayed in Frozen Northern Europe Rather Than Migrating to Warmer Areas, Evidence from Arctic Fox Bones Shows

Ancient hunters stayed in the coldest part of Northern Europe rather than migrating to escape freezing winter conditions, archaeologists have ...

New Mathematical Method Shows How Climate Change Led to Fall of Ancient Civilization

A researcher developed a mathematical method that shows climate change likely caused the rise and fall of an ancient civilization. A new article outlines the technique he developed and shows how ...

Bering Sea Ice Extent Is at Most Reduced state in Last 5,500 Years

Through the analysis of vegetation from a Bering Sea island, researchers have determined that the extent of sea ice in the region is lower than it's been for thousands of ...

Viruses on Glaciers Highlight Evolutionary Mechanism to Overcome Host Defenses

Scientists studying life on the surface of glaciers in the Arctic and Alps challenge assumptions on virus evolution. Their study shows that, contrary to expectations, the viruses on glaciers in the ...

Sea Level Rise from Ice Sheets Track Worst-Case Climate Change Scenario

Ice sheets in Greenland and Antarctica whose melting rates are rapidly increasing have raised the global sea level by 1.8cm since the 1990s, and are matching the Intergovernmental Panel on Climate ...

How Neanderthals Adjusted to Climate Change

Climate change occurring shortly before their disappearance triggered a complex change in the behavior of late Neanderthals in Europe: they developed more complex tools, suggests new ...

Mount Everest Summit Success Rates Double, Death Rate Stays the Same Over Last 30 Years

A new study finds that the success rate of summiting Mount Everest has doubled in the last three decades, even though the number of climbers has greatly increased, crowding the narrow route through ...

How Cold Was the Ice Age? Researchers Now Know

Scientists have nailed down the temperature of the last ice age -- the Last Glacial Maximum of 20,000 years ago - to about 46 degrees ...

Antarctic Ice Shelves Vulnerable to Sudden Meltwater-Driven Fracturing, Says Study

A new study says that many of the ice shelves ringing Antarctica could be vulnerable to quick destruction if rising temperatures drive melt water into the numerous fractures that currently penetrate ...

New Study Warns: We Have Underestimated the Pace at Which the Arctic Is Melting

Arctic sea ice is melting more quickly than once assumed. Today's climate models have yet to incorporate the steep rise in temperatures that have occurred over the past 40 ...

Atmospheric Scientists Study Fires to Resolve Ice Question in Climate Models

Black carbon from fires is an important short-term climate driver because it can affect the formation and composition of clouds. Scientists are figuring out ...

East Antarctic Melting Hotspot Identified

Ice is melting at a surprisingly fast rate underneath Shirase Glacier Tongue in East Antarctica due to the continuing influx of warm seawater into the Lützow-Holm ...

Fossil Pollen Record Suggests Vulnerability to Mass Extinction Ahead

Reduced resilience of plant biomes in North America could be setting the stage for the kind of mass extinctions not seen since the retreat of glaciers and arrival of humans about 13,000 years ago, ...

Arctic Ocean Moorings Shed Light on Winter Sea Ice Loss

The eastern Arctic Ocean's winter ice grew less than half as much as normal during the past decade, due to the growing influence of heat from the ocean's interior, researchers have ...

The Age of Earth's Inner Core Revised

By creating conditions akin to the center of Earth inside a laboratory chamber, researchers have improved the estimate of the age of our planet's solid inner core, putting it at 1 billion to 1.3 ...

Anthropogenic CO2 Increase Is Unprecedented

Even in earlier warm periods there were pulse-like releases of CO2 to the atmosphere. Today's anthropogenic CO2 rise, however, is more than six times larger and almost ten times faster than ...

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