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Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
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Heart arrhythmias detected in deep-diving marine mammals

Fri, 01/16/2015 - 07:55
A new study of dolphins and seals shows that despite their remarkable adaptations to aquatic life, exercising while holding their breath remains a physiological challenge for marine mammals. The study found a surprisingly high frequency of heart arrhythmias in bottlenose dolphins and Weddell seals during the deepest dives.

Nearly half the systems crucial to stability of planet compromised

Thu, 01/15/2015 - 15:35
Almost half of the processes that are crucial to maintaining the stability of the planet have become dangerously compromised by human activity. That is the view of an international team of 18 researchers who provide new evidence of significant changes in four of the nine systems which regulate the resilience of the Earth.

Correcting estimates of sea level rise

Wed, 01/14/2015 - 13:05
The acceleration in global sea level from the 20th century to the last two decades has been significantly larger than scientists previously thought, according to a new study. Previous estimates of global sea-level rise from 1900-1990 had been over-estimated by as much as 30 percent, researchers suggest.

Greenland meltwater contributes to rising sea levels

Tue, 01/13/2015 - 10:16
As the largest single chunk of melting snow and ice in the world, the massive ice sheet that covers about 80 percent of Greenland is recognized as the biggest potential contributor to rising sea levels due to glacial meltwater.

New technology purifies waste water by freezing it first: Possible applications in mineral extraction industry

Mon, 01/12/2015 - 08:31
Freezing technology can be utilized in waste water treatment, researchers in Finland have shown. When waste water freezes, it can be purified through the formation of a cleaner layer of ice. The clean layer of ice can be removed from the rest of the waste water, and the remaining waste water is more concentrated. The new energy-efficient method of purification is based on the natural freezing process of water: energy is required only for breaking the ice and transporting it from the waste water pool.

On a tropical island, fossils reveal past -- and possible future -- of polar ice

Thu, 01/08/2015 - 15:24
The balmy islands of Seychelles couldn't feel farther from Antarctica, but their fossil corals could reveal much about the fate of polar ice sheets. About 125,000 years ago, the average global temperature was only slightly warmer, but sea levels rose high enough to submerge the locations of many of today's coastal cities. Understanding what caused seas to rise then could shed light on how to protect those cities today.

Why is Greenland covered in ice? Processes in deep Earth interior created conditions for glaciation

Mon, 01/05/2015 - 10:25
The ice on Greenland could only form due to processes in the deep Earth interior. Scientists now explain why the conditions for the glaciation of Greenland developed only so recently on a geological time scale.

Underwater drones map ice algae in Antarctica

Mon, 01/05/2015 - 09:14
New robot technology leads Antarctic exploration into a new epoch. It is now possible to study the underside of sea ice across large distances and explore a world previously restricted to specially trained divers only.

Methane is leaking from permafrost offshore Siberia

Mon, 12/22/2014 - 10:15
Images of craters on Yamal Peninsula, caused by collapsing permafrost, have become world famous. But did you know that this permafrost extends to the ocean floor? And it is thawing.

Average temperature in Finland has risen by more than two degrees

Mon, 12/22/2014 - 07:43
Over the past 166 years, the average temperature in Finland has risen by more than two degrees. During the observation period, the average increase was 0.14 degrees per decade, which is nearly twice as much as the global average, experts report.

The Greenland Ice Sheet: Now in HD

Thu, 12/18/2014 - 08:09
The highest-resolution maps of the Greenland Ice Sheet are debuting. Starting with Worldview satellite imagery, The maps are already revealing previously unknown features on the ice sheet.

Satellites measure increase of Sun's energy absorbed in the Arctic

Wed, 12/17/2014 - 14:41
NASA satellite instruments have observed a marked increase in solar radiation absorbed in the Arctic since the year 2000 -- a trend that aligns with the steady decrease in Arctic sea ice during the same period.

North Atlantic signaled Ice Age thaw 1,000 years before it happened, reveals new research

Wed, 12/17/2014 - 06:44
The Atlantic Ocean at mid-depths may have given out early warning signals – 1,000 years in advance - that the last Ice Age was going to end, scientists report.

Glacier beds can get slipperier at higher sliding speeds

Tue, 12/16/2014 - 13:07
Scientists have found that as a glacier's sliding speed increases, the bed beneath the glacier can grow slipperier. That laboratory finding could help researchers make better predictions of glacier response to climate change and the corresponding sea-level rise.

Massive study provides first detailed look at how Greenland's ice is vanishing

Mon, 12/15/2014 - 14:45
Scientists used NASA satellite and aerial data to reconstruct how the ice sheet changed at nearly 100,000 locations over many years.

Scientists observe the Earth grow a new layer under an Icelandic volcano

Mon, 12/15/2014 - 10:41
New research into an Icelandic eruption has shed light on how the Earth’s crust forms, according to a new article.

Migrating 'supraglacial' lakes could trigger future Greenland ice loss

Mon, 12/15/2014 - 10:40
Predictions of Greenland ice loss and its impact on rising sea levels may have been greatly underestimated. Supraglacial lakes are darker than ice, so they absorb more of the Sun's heat, which leads to increased melting. When the lakes reach a critical size, they drain through ice fractures, allowing water to reach the ice sheet base which causes it to slide more quickly into the oceans. These changes can also trigger further melting.

No laughing matter: Nitrous oxide rose at end of last ice age

Wed, 12/10/2014 - 12:13
Nitrous oxide is an important greenhouse gas that doesn't receive as much notoriety as carbon dioxide or methane, but a new study confirms that atmospheric levels of N2O rose significantly as the Earth came out of the last ice age and addresses the cause.

Ancient creature discovered in the depths of the Arctic Ocean

Wed, 12/10/2014 - 10:43
An extraordinary animal has been discovered more than 1.5 miles (2.5 km) below the ocean surface off the coast of northern Alaska, USA. The new species is a type of bivalve mollusk (clams, mussels, oysters etc.). Age estimates place the new clam as living more than 1.8 million years ago to the near present, but scientists can't discount that it might still be alive today.

Looking at El Niño's past to predict its future

Fri, 12/05/2014 - 10:40
Scientists see a large amount of variability in the El Niño-Southern Oscillation (ENSO) when looking back at climate records from thousands of years ago. Without a clear understanding of what caused past changes in ENSO variability, predicting the climate phenomenon's future is a difficult task. A new study shows how this climate system responds to various pressures, such as changes in carbon dioxide and ice cover, in one of the best models used to project future climate change.