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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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Antarctica: The wind sublimates snowflakes

Mon, 09/25/2017 - 14:14
A team of researchers has collected new data that shows a significant decrease in snow precipitation close to the ground in Antarctica, which has an impact on the ice sheet surface mass balance.

Getting the measure of mud

Mon, 09/25/2017 - 09:47
For the first time, researchers have been able to use mud deposited on the depths of the ocean floor to measure changes in the speed of deep-sea currents. Using mud as a current meter could help scientists to identify fluctuating patterns in ocean current speeds stretching back into prehistory, enabling climate change researchers to get a better sense of how currents behave over time.

Fly away home? Ice age may have clipped bird migration

Wed, 09/20/2017 - 13:46
The onset of the last ice age may have forced some bird species to abandon their northerly migrations for thousands of years, says new research led by an ornithologist. The study challenges a long-held presumption that birds merely shortened their migratory flights when glaciers advanced south to cover much of North America and northern Europe about 21,000 years ago.

10,000 year-old DNA proves when fish colonialized our lakes

Wed, 09/20/2017 - 09:45
DNA in lake sediment forms a natural archive displaying when various fish species colonized lakes after the glacial period. Scientists' analyses of the prevalence of whitefish DNA in sediment reveal that the whitefish came to Lake Stora Lögdasjön in Västerbotten already 10,000 years ago, whereas Lake Hotagen in Jämtland had its whitefish only 2,200 years ago.

Gravity waves influence weather and climate

Wed, 09/20/2017 - 09:00
Gravity waves form in the atmosphere as a result of destabilizing processes. The effects of gravity waves can only be taken into consideration by including additional special components in the models.

Atmospheric effects of Arctic snowmelt

Wed, 09/20/2017 - 09:00
Researchers are exploring the changing chemistry of the Arctic's atmosphere to help answer the question of what happens as snow and ice begin to melt.

End-of-summer Arctic sea ice extent is eighth lowest on record

Tue, 09/19/2017 - 15:01
Arctic sea ice appeared to have reached its yearly lowest extent on Sept. 13, scientists have reported. Analysis of satellite data showed that at 1.79 million square miles (4.64 million square kilometers), this year's Arctic sea ice minimum extent is the eighth lowest in the consistent long-term satellite record, which began in 1978.

Studies of ‘Crater Capital' in the Baltics show impactful history

Mon, 09/18/2017 - 08:28
Studies of craters in the Baltics (Estonia) are giving insights into the many impacts that have peppered the Earth over its long history. In southeastern Estonia, scientists have dated charcoal from trees destroyed in an impact to prove a common origin for two small craters, named Illumetsa. A third submarine crater located on the seabed in the Gulf of Finland has been measured and dated with with precision.

Arctic sea ice once again shows considerable melting

Fri, 09/15/2017 - 09:36
This September, the extent of Arctic sea ice shrank to roughly 4.7 million square kilometres, scientists have determined.

Forest fires are not limited to hot or temperate climates

Thu, 09/14/2017 - 07:40
Evidence of wildfires dating back 20,000 years was recently discovered in the Massif du Queyras, in the heart of the French Alps, 2,240 meters above sea level. This discovery echoes the recent wildfires in the Arctic tundra, where the presence of trees have become increasingly common.

Wax on, melt off: Adding phase change materials, like paraffin, to concrete could make roads that melt snow and ice

Wed, 09/13/2017 - 18:31
Researchers have made a discovery that could create roads that melt off ice and snow during winter storms. Their secret? Adding a little paraffin wax to the road's concrete mix.

Earth's oldest trees in climate-induced race up the tree line

Wed, 09/13/2017 - 18:24
Bristlecone pine and limber pine trees in the Great Basin region of the western United States are like two very gnarled, old men in a slow-motion race up the mountaintop, and climate change is the starting gun, according to a new study. The study shows that the tree line has been steadily moving upslope over the past 50 years in the Great Basin.

Ancient tree reveals cause of spike in Arctic temperature

Tue, 09/12/2017 - 08:30
A kauri tree trapped in a New Zealand swamp for 30,000 years may have overturned the idea that a slowdown in ocean currents in the North Atlantic may be entirely responsible for Dansgaard-Oeschger events and the characteristic bi-polar see-saw, which sees the Antarctica cool while the Arctic warms during glacial periods. The research reveals a mechanism that generates a 20,000 km long atmospheric bridge, reaching from Antarctica to the Arctic.

Rapid climate changes across northern hemisphere in the earliest Middle Pleistocene

Tue, 09/12/2017 - 08:30
By studying climate changes that took place thousands of years ago, we can better understand the global climate system and predict Earth's future climate. A multi-organization research team has discovered evidence of rapid climate changes on a millennial-to-centennial scale that occurred 780 to 760 thousand years ago.

How openings in Antarctic sea ice affect worldwide climate

Mon, 09/11/2017 - 11:26
In a new analysis of climate models, researchers reveal the significant global effects that seemingly anomalous polynyas, or openings in sea ice, can have. Their findings indicate that heat escaping from the ocean through these openings impacts sea and atmospheric temperatures and wind patterns around the globe and even rainfall around the tropics.

Cold region 'tipping point' now inevitable

Mon, 09/11/2017 - 11:26
The decline of cold regions called periglacial zones is now inevitable due to climate change, researchers say.

USA threatened by more frequent flooding

Mon, 09/11/2017 - 11:26
The East Coast of the United States is threatened by more frequent flooding in the future. According to this study, the states of Virginia, North Carolina, and South Carolina are most at risk. Their coastal regions are being immersed by up to three millimeters per year -- among other things, due to human intervention.

Ancient wetlands offer window into climate change

Mon, 09/11/2017 - 08:59
Environmental researchers have uncovered a wealth of information about a unique part of Australia that offers never-before-seen insights into climate change since the last ice age.

NASA flights map summer melt of Greenland ice sheet

Fri, 09/08/2017 - 19:54
Operation IceBridge is flying in Greenland to measure how much ice has melted over the course of the summer from the ice sheet. The flights, which began on Aug. 25 and will go on until Sept. 21, repeat paths flown this spring and aim to monitor seasonal changes in the elevation of the ice sheet.

Ship exhaust makes oceanic thunderstorms more intense

Thu, 09/07/2017 - 13:27
Thunderstorms directly above two of the world's busiest shipping lanes are significantly more powerful than storms in areas of the ocean where ships don't travel, according to new research.

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