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Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
Updated: 3 min 27 sec ago

Study reveals new Antarctic process contributing to sea level rise and climate change

Wed, 04/18/2018 - 13:15
A new study has revealed a previously undocumented process where melting glacial ice sheets change the ocean in a way that further accelerates the rate of ice melt and sea level rise. The research found that glacial meltwater makes the ocean's surface layer less salty and more buoyant, preventing deep mixing in winter and allowing warm water at depth to retain its heat and further melt glaciers from below.

Warming planet led to peatland formation

Mon, 04/16/2018 - 14:56
Rising temperatures were a key driver of peatland formation after the last glacial maximum, according to new research.

Virtual contact lenses for radar satellites

Mon, 04/16/2018 - 09:58
Radar satellites supply the data used to map sea level and ocean currents. However, up until now the radar's 'eyes' have been blind where the oceans are covered by ice. Researchers have now developed a new analysis method to solve this problem.

Scientists discover first super salty subglacial lakes in Canadian Arctic

Wed, 04/11/2018 - 16:41
An analysis of radar data led scientists to an unexpected discovery of two lakes located beneath 550 to 750 meters of ice underneath the Devon Ice Cap, one of the largest ice caps in the Canadian Arctic. They are thought to be the first isolated hypersaline subglacial lakes in the world.

Atlantic Ocean circulation at weakest point in more than 1,500 years

Wed, 04/11/2018 - 12:16
New research provides evidence that a key cog in the global ocean circulation system hasn't been running at peak strength since the mid-1800s and is currently at its weakest point in the past 1,600 years. If the system continues to weaken, it could disrupt weather patterns from the United States and Europe to the African Sahel, and cause more rapid increase in sea level on the US East Coast.

Snowfall patterns may provide clues to Greenland Ice Sheet

Wed, 04/11/2018 - 12:16
A new study describes a unique method involving cloud characteristics for measuring snowfall that could help answer some big questions about the Greenland Ice Sheet.

North-exposed ice cliffs accelerate glacier melt

Wed, 04/11/2018 - 10:10
Researchers have confirmed the suspicion that north-facing ice cliffs on debris-covered glaciers in the Himalayas accelerate ice melt.

Melting of Arctic mountain glaciers unprecedented in the past 400 years

Tue, 04/10/2018 - 12:28
Glaciers in Alaska's Denali National Park are melting faster than at any time in the past four centuries because of rising summer temperatures, a new study finds.

Burning ice in oceanic clay rich sediment

Mon, 04/09/2018 - 09:38
A research team has identified the formation of natural gas hydrates, so-called flammable ice, formed in oceans.

1C rise in atmospheric temperature causes rapid changes to world's largest High Arctic lake

Fri, 04/06/2018 - 14:54
An interdisciplinary team of scientists examining everything from glaciology to freshwater ecology discovered drastic changes over the past decade to the world's largest High Arctic lake. And from glacial melt to the declining lake ice to changes in lake ecology, the results from Lake Hazen on Ellesmere Island in Canada are alarming.

The ban of the cave bear

Thu, 04/05/2018 - 09:01
At 3.5 meters long and with a shoulder height of 1.7 meters, the cave bear was one of the giants of the Ice Age. Yet few appear to have survived until the last glacial maximum 24,000 to 19,000 years ago. Researchers have conducted analyses to find out what likely caused the extinction of these large herbivores. It is believed that the renewed cooling of the climate and hunting by humans -- added to the bears purely vegetarian diet -- increased the pressure on this megafauna species.

Climate change and recreational activities at Walden Pond have altered its ecosystem

Wed, 04/04/2018 - 13:34
Climate change and recreational activity at Walden Pond may have altered the ecology of this iconic lake during the past 1,800 years, affecting the water quality and plankton community, according to a new study.

Algae, impurities darken Greenland ice sheet and intensify melting

Wed, 04/04/2018 - 10:47
The Dark Zone of the Greenland ice sheet has major impact on the surface melt of this immense store of ice. A new study -- based on drone surveys -- suggests that ice algae, dust and soot from wildfires and combustion are the main cause.

Bowhead whales, the 'jazz musicians' of the Arctic, sing many different songs

Wed, 04/04/2018 - 08:39
Four winters of audio recordings of bowhead whales singing under the ice off Greenland show a surprise variety in this animal's repertoire. Bowhead whales' vocalization patterns are very different from the only other whale known to make distinct songs, the humpback.

Connection of sea level and groundwater missing link in climate response

Tue, 04/03/2018 - 11:00
About 250 million years ago, when the Earth had no ice caps and the water around the equator was too hot for reptiles, sea level still rose and fell over time. Now, an international team of researchers has developed a way to track sea-level rise and fall and to tease out what caused the changes in the absence of ice sheets.

Great magma erup­tions had two sources

Tue, 04/03/2018 - 07:58
New research may explain controversies related to great magma eruptions.

Earth's stable temperature past suggests other planets could also sustain life

Mon, 04/02/2018 - 18:26
Research about temperatures on the early Earth have ranged from a virtually ice-covered surface to a very hot planet that could not support most of today's lifeforms. New computer simulations show fairly moderate average temperatures and more stable ocean pH -- which helps explain how life evolved here, and might emerge on other planets.

Antarctica retreating across the sea floor

Mon, 04/02/2018 - 11:36
Antarctica’s great ice sheet is losing ground as it is eroded by warm ocean water circulating beneath its floating edge, a new study has found.   

Ice-free Arctic summers could hinge on small climate warming range

Mon, 04/02/2018 - 10:07
A range of less than one degree Fahrenheit (or half a degree Celsius) of climate warming over the next century could make all the difference when it comes to the probability of future ice-free summers in the Arctic, new research shows.

NASA visualizes the dance of a melting snowflake

Thu, 03/29/2018 - 12:31
NASA has produced the first three-dimensional numerical model of melting snowflakes in the atmosphere. The model provides a better understanding of how snow melts can help scientists recognize the signature in radar signals of heavier, wetter snow -- the kind that breaks power lines and tree limbs -- and could be a step toward improving predictions of this hazard.

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