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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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Degrading underground ice wedges are reshaping Arctic landscape

Mon, 03/14/2016 - 13:01
Rapid melting of ice and Arctic permafrost is altering tundra regions in Alaska, Canada and Russia, according to a new study. Ice-wedge degradation has been observed before in individual locations, but this is the first study to determine that rapid melting has become widespread throughout the Arctic.

Evidence in the Cassia Hills of Idaho, west of Yellowstone, reveals 12 catastrophic eruptions

Fri, 03/11/2016 - 07:41
Ancient super-eruptions west of Yellowstone, USA, were investigated by an international initiative to examine the frequency of massive volcanic events. Yellowstone famously erupted cataclysmically in recent times, but these were just the latest of a longer succession of huge explosive eruptions that burned a track from Oregon eastward toward Yellowstone during the past 16 million years.

Cloudy problems: Today's clouds might not be the same as pre-industrial ones

Thu, 03/03/2016 - 17:27
Clouds are notoriously hard to simulate in computer programs that model climate. A new study suggests why -- either clouds are more variable than scientists give them credit for, or those bright white clouds in the sky are much dirtier than scientists thought.

Greenland's ice is getting darker, increasing risk of melting

Thu, 03/03/2016 - 13:57
Greenland's snowy surface has been getting darker over the past two decades, absorbing more heat from the sun and increasing snow melt, a new study of satellite data shows. That trend is likely to continue, with the surface's reflectivity, or albedo, decreasing by as much as 10 percent by the end of the century, the study says.

Tiny island deer in Panama hunted to extinction thousands of years ago

Thu, 03/03/2016 - 11:07
Once there was a dwarf deer on an island in the Pacific, but residents hunted it to extinction 6,000 years ago. Knowing this may help to conserve conservation of deer on a neighboring island.

Philippines affected by more extreme tropical cyclones

Mon, 02/29/2016 - 07:20
A new study finds hazardous tropical cyclones in the Philippines are increasing in intensity causing widespread damage and loss of life, which may be due to rising sea-surface temperatures.

Antarctica could be headed for major meltdown

Tue, 02/23/2016 - 13:36
In the early Miocene Epoch, temperatures were 10 degrees warmer and ocean levels were 50 feet higher -- well above the ground level of modern-day New York, Tokyo and Berlin. Now a geochemist reports finding striking similarities between climate change patterns today and millions of years ago.

Creation of an island: The extinction of animals on Zanzibar

Tue, 02/23/2016 - 06:45
Researchers have studied how Zanzibar was formed, charting the extinction of various animals from the island.

Antarctic ice sheet is more vulnerable to carbon dioxide than expected

Mon, 02/22/2016 - 14:56
Results from a new climate reconstruction of how Antarctica's ice sheets responded during the last period when atmospheric carbon dioxide reached levels like those expected to occur in about 30 years, plus sediment core findings reported in a companion paper, suggest that the ice sheets are more vulnerable to rising atmospheric carbon dioxide than previously thought.

New evidence confirms human activities drive global warming

Mon, 02/22/2016 - 08:11
A new statistical technique, analyzing data records since measuring started 150 years ago, independently confirms that human-made carbon dioxide and methane emissions have led to global warming, according to a recent article. The analysis also shows that the most pronounced consequences of such emissions are being felt in localized regions around the globe, such as Europe, North America, China, Siberia, the Sahel zone in Africa, and Alaska.

'Ice age blob' of warm ocean water discovered south of Greenland

Fri, 02/19/2016 - 12:48
Greenland experienced several abrupt and brutal climate changes during the last ice age. But even during the coldest periods a blob of warm surface water existed nearby.

Arctic opposite to North Atlantic

Fri, 02/19/2016 - 08:26
For long time freshwater has been seen as one potential cause for rapid climate change in the North Atlantic – Arctic region – probably most people have heard about the ‘Gulf Stream is slowing down’ scenarios with freshwater leading to sluggish currents and less heat being transported to northern high latitudes. In our two recent studies we were able to show that while such a scenario is plausible in the North Atlantic, the ocean response in the Arctic is quite the opposite.

New study is 'a leap forward' in our understanding of ice sheet behavior

Wed, 02/17/2016 - 13:04
In recent years, climate scientists have grown increasingly concerned that massive rivers of ice flowing into the ocean from Greenland and Antarctica could accelerate as the planet warms, leading to a catastrophic collapse of Earth's ice sheets. But a new article presents an alternative narrative of the manner in which an ice sheet can disappear.

Ice sheet modeling of Greenland, Antarctica helps predict sea-level rise

Tue, 02/16/2016 - 08:11
Predicting the expected loss of ice sheet mass is difficult due to the complexity of modeling ice sheet behavior. To better understand this loss, a team of researchers has been improving the reliability and efficiency of computational models that describe ice sheet behavior and dynamics.

Rare beluga data show whales dive to maximize meals

Fri, 02/12/2016 - 13:09
As the Arctic continues to change due to rising temperatures, melting sea ice and human interest in developing oil and shipping routes, it's important to understand belugas' baseline behavior, argue the authors of a new article.

Rare beluga data show whales dive to maximize meals

Fri, 02/12/2016 - 13:09
As the Arctic continues to change due to rising temperatures, melting sea ice and human interest in developing oil and shipping routes, it's important to understand belugas' baseline behavior, argue the authors of a new article.

Catastrophic failure of South American Ice Age dam changed Pacific Ocean circulation and climate

Fri, 02/12/2016 - 09:24
The catastrophic release of fresh water from a vast south American lake at the end of the last Ice Age was significant enough to change circulation in the Pacific Ocean according to new research. The study reveals that the lake, which was about one third the size of Wales, drained several times between 13,000 and 8,000 years ago, with devastating consequences.

Catastrophic failure of South American Ice Age dam changed Pacific Ocean circulation and climate

Fri, 02/12/2016 - 09:24
The catastrophic release of fresh water from a vast south American lake at the end of the last Ice Age was significant enough to change circulation in the Pacific Ocean according to new research. The study reveals that the lake, which was about one third the size of Wales, drained several times between 13,000 and 8,000 years ago, with devastating consequences.

Giant flightless bird wandered the Arctic 50 million years ago

Fri, 02/12/2016 - 09:23
New research confirms there really was a giant, flightless bird with a head the size of a horse's wandering about in the winter twilight of the high Arctic some 53 million years ago.

Giant flightless bird wandered the Arctic 50 million years ago

Fri, 02/12/2016 - 09:23
New research confirms there really was a giant, flightless bird with a head the size of a horse's wandering about in the winter twilight of the high Arctic some 53 million years ago.

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