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Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
Updated: 2 hours 56 min ago

Sediment cores from ocean floor could contain 23-million-year-old climate change clues

Thu, 02/17/2022 - 12:19
Sediment cores taken from the Southern Ocean dating back 23 million years are providing insight into how ancient methane escaping from the seafloor could have led to regional or global climate and environmental changes, according to a new study.

'Blue Blob' near Iceland could slow glacial melting

Tue, 02/15/2022 - 12:46
A region of cooling water in the North Atlantic Ocean near Iceland, nicknamed the 'Blue Blob,' has likely slowed the melting of the island's glaciers since 2011 and may continue to stymie ice loss until about 2050, according to new research.

Driving conservation efforts with DNA data

Tue, 02/15/2022 - 11:55
An international team of conservation experts has revealed how ancient and historical DNA (a/hDNA), such as genetic data from specimens stored in natural history museums, can be used to assess population genetic patterns and processes that are relevant for endangered species.

Ending the debate: New research solves longstanding Antarctic climate change mystery

Mon, 02/14/2022 - 17:33
New research definitively resolves a long-standing discrepancy in the geologic record that pitted studies of marine ice-sheet behavior against those that reconstructed past conditions on land. The research lends additional weight to evidence that the Antarctic Ice Sheet is sensitive to small changes in carbon dioxide levels and that, in the past, large portions of the ice sheet could have disappeared under carbon dioxide levels similar to today.

Tilting of Earth’s crust governed the flow of ancient megafloods

Mon, 02/14/2022 - 14:48
As ice sheets began melting at the end of the last ice age, a series of cataclysmic floods called the Missoula megafloods scoured the landscape of eastern Washington, carving long, deep channels and towering cliffs through an area now known as the Channeled Scablands. They were among the largest known floods in Earth's history, and geologists struggling to reconstruct them have now identified a crucial factor governing their flows. A new study shows how the changing weight of the ice sheets would have caused the entire landscape to tilt, changing the course of the megafloods.

How climate change is destroying Arctic coasts

Mon, 02/14/2022 - 10:17
Global warming is causing permafrost in the Arctic to thaw and sea ice to melt. As a result, coasts are less protected and are being eroded, while carbon stored in the soil and carbon dioxide are being released into the ocean and atmosphere. In a first, researchers have now calculated the future scale of these processes for the entire Arctic. Their conclusion: each degree of warming accelerates them considerably.

Seawater seep may be speeding glacier melt, sea level rise

Thu, 02/10/2022 - 14:41
A new study projects that warm seawater seeping under certain glaciers could eventually lead to future sea level rise that's double that of existing estimates.

New technique will improve the construction of ice roads and bridges

Thu, 02/10/2022 - 07:49
A new study found that measuring the time it takes for a radar pulse to travel from a satellite to the sea surface and back again can reveal the thickness of river ice and dates when it is safe to travel on ice roads and bridges in Arctic regions.

Antarctic research reveals link between warming and fish abundance

Tue, 02/08/2022 - 18:17
A long-term study in the Southern Ocean reveals a clear correlation between warming waters, decreased sea ice, and reduced abundance of Antarctic silverfish. These small, abundant fish are important prey for penguins, seals, and other regional marine life, in a role similar to that played by anchovies or sardines in more temperate waters.

Giant sponge gardens discovered on seamounts in the Arctic deep sea

Tue, 02/08/2022 - 10:39
Massive sponge gardens thrive on top of seamounts in the Central Arctic Ocean, one of the most oligotrophic seas on Earth. They appear to feed on the remnants of an extinct fauna. Microorganisms support the sponges in exploiting this fluffy material as a source of food and energy.

New radar technology records Antarctic glaciers losing ice faster than ever documented before

Mon, 02/07/2022 - 14:56
Unprecedented mass loss from three Antarctic glaciers could signal global climate trouble ahead, a researcher warns. A multinational collaboration is using an advanced remote imaging system to document the Pope, Smith and Kohler glaciers with clarity and completeness never achieved before.

Globe’s glaciers have less ice than previously thought

Mon, 02/07/2022 - 10:26
Research revises estimates of glacial ice volume, suggesting that there is less ice in the world's glaciers than previously thought. The findings have implications on freshwater and global sea level rise.

Deep insights into the Arctic of tomorrow

Mon, 02/07/2022 - 07:35
Hundreds of international researchers are currently analyzing observations from the one-year MOSAiC expedition, during which hundreds of environmental parameters were recorded with unprecedented accuracy and frequency over a full annual cycle in the Central Arctic Ocean.

Study looks at glacial lakes, dams in Alaska and potential for flooding

Fri, 02/04/2022 - 08:31
Researchers have produced a detailed inventory of glacial lakes and dams over a 35-year timeframe from 1984 to 2019 in Alaska and northwest Canada.

Human-induced climate change impacts the highest reaches of the planet — Mount Everest

Thu, 02/03/2022 - 07:35
Melting and sublimation on Mount Everest's highest glacier due to human-induced climate change have reached the point that several decades of accumulation are being lost annually now that ice has been exposed, according to a research team that analyzed data from the world's highest ice core and highest automatic weather stations.

Ocean eddies could explain Antarctic sea-ice paradox

Wed, 02/02/2022 - 07:03
Despite global warming and the sea-ice loss in the Arctic, the Antarctic sea-ice extent has remained largely unchanged since 1979. However, existing climate model-based simulations indicate significant sea-ice loss, contrary to actual observations. As experts have now shown, the ocean may weaken warming around Antarctica and delay sea-ice retreat.

Widespread retreat and loss of marine-terminating glaciers in the northern hemisphere

Mon, 01/31/2022 - 12:28
Researchers have mapped out all the glaciers that end in the ocean in the Northern Hemisphere and provide a measure of their rate of change over the last 20 years. Their findings will help us better understand -- and perhaps predict -- the impact of climate change north of the equator.

Thawing permafrost can accelerate global warming

Fri, 01/28/2022 - 09:07
Thawing permafrost in the Arctic could be emitting greenhouse gases from previously unaccounted-for carbon stocks, fuelling global warming. In the Siberian Arctic, the research team determined the origin of carbon dioxide released from permafrost that is thousands of years old.

Climate change in the Early Holocene

Thu, 01/27/2022 - 10:43
New insight into how our early ancestors dealt with major shifts in climate has been revealed.

Ancient ice reveals mysterious solar storm

Wed, 01/26/2022 - 13:42
Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of an extreme solar storm that occurred about 9,200 years ago. What puzzles the researchers is that the storm took place during one of the sun's more quiet phases -- during which it is generally believed our planet is less exposed to such events.

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