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Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
Updated: 1 hour 16 min ago

How stable is deep ocean circulation in warmer climate?

Thu, 03/26/2020 - 13:43
If circulation of deep waters in the Atlantic stops or slows due to climate change, it could cause cooling in northern North America and Europe - a scenario that has occurred during past cold glacial periods. Now, a new study suggests that short-term disruptions of deep ocean circulation occurred during warm interglacial periods in the last 450,000 years, and may happen again.

Less ice, more methane from northern lakes: A result from global warming

Thu, 03/26/2020 - 11:41
Shorter and warmer winters lead to an increase in emissions of methane from northern lakes, according to a new study. Longer ice-free periods contribute to increased methane emissions. In Finland, emissions of methane from lakes could go up by as much as 60%.

East Antarctica's Denman Glacier has retreated almost 3 miles over last 22 years

Mon, 03/23/2020 - 11:56
East Antarctica's Denman Glacier has retreated 5 kilometers, nearly 3 miles, in the past 22 years, and researchers are concerned that the shape of the ground surface beneath the ice sheet could make it even more susceptible to climate-driven collapse.

Greenland shed ice at unprecedented rate in 2019; Antarctica continues to lose mass

Wed, 03/18/2020 - 13:36
Scientists describe Greenland's loss of 600 billion tons of ice in the summer of 2019, raising global sea levels by 2.2 millimeters in a short time.

Increasingly mobile sea ice risks polluting Arctic neighbors

Wed, 03/18/2020 - 13:36
The movement of sea ice between Arctic countries is expected to significantly increase this century, raising the risk of more widely transporting pollutants like microplastics and oil, according to new research.

Salmon provide nutrients to Alaskan streambanks

Wed, 03/18/2020 - 09:44
Nutrient cycling of stream ecosystems dependent on portion of salmons' lifecycle.

For narwhals, the 'unicorn of the seas,' size matters for sexual selection

Tue, 03/17/2020 - 20:56
Showy peacock feathers, extravagant elk antlers and powerful crayfish claws are just a few examples of the ostentatious animal extremes used to compete for and attract mates, a process called sexual selection. Now, we can add the 'unicorn of the seas,' the narwhal, to the list. A new study demonstrates the best evidence to date that the narwhal tusk functions as a sexual trait.

Mysterious bone circles made from the remains of mammoths reveal clues about Ice Age

Mon, 03/16/2020 - 19:46
Mysterious bone circles made from the remains of dozens of mammoths have revealed clues about how ancient communities survived Europe's ice age.

New research first to relate Antarctic sea ice melt to weather change in tropics

Mon, 03/16/2020 - 13:15
While there is a growing body of research showing how the loss of Arctic sea ice affects other parts of the planet, a new study is the first to also consider the long-range effect of Antarctic sea ice melt. It estimates that Arctic and Antarctic ice loss will account for about one-fifth of the warming that is projected to happen in the tropics.

Bargain-hunting for biodiversity

Mon, 03/16/2020 - 13:14
The best bargains for conserving some of the world's most vulnerable salamanders and other vertebrate species can be found in Central Texas and the Appalachians, according to new conservation tools.

What causes an ice age to end?

Fri, 03/13/2020 - 10:21
Research by an international team helps to resolve some of the mystery of why ice ages end by establishing when they end.

Computer model solves mystery of how gas bubbles build big methane hydrate deposits

Thu, 03/12/2020 - 13:48
New research has explained an important mystery about natural gas hydrate formations and, in doing so, advanced scientists' understanding of how gas hydrates could contribute to climate change and energy security.

Melting glaciers will challenge some salmon populations and benefit others

Wed, 03/11/2020 - 15:19
A new study looking at the effects that glacier retreat will have on western North American Pacific salmon predicts that while some salmon populations may struggle, others may benefit.

New flood damage framework helps planners prepare for sea-level rise

Wed, 03/11/2020 - 15:18
Researchers have developed a new framework allowing urban planners and policymakers to consider a combination of responses to sea-level rise and, if hard structures, how high these protections should be built, depending on their tolerance for risk and the projected financial losses to a particular area due to flooding.

Coral reefs 'weathering' the pressure of globalization

Wed, 03/11/2020 - 09:08
More information about the effects human activities have on Southeast Asian coral reefs has been revealed, with researchers looking at how large-scale global pressures, combined with the El Niño Southern Oscillation (ENSO) climate pattern, can detrimentally impact these delicate marine ecosystems.

Paleontologists discover solid evidence of formerly elusive abrupt sea-level jump

Tue, 03/10/2020 - 08:42
Meltwater pulses (MWPs) known as abrupt sea-level rise will inevitably affect cities especially those on coastal plains of low elevation. A recent study presented evidence of abrupt sea level change between 11,300-11,000 years ago in the Arctic Ocean, solving the puzzle of second largest meltwater pulse (labelled as ''MWP-1B'' next to the largest and already well understood MWP-1A).

Why organisms shrink in a warming world

Mon, 03/09/2020 - 08:30
Everyone is talking about global warming. A team of paleontologists has recently investigated how prehistoric organisms reacted to climate change, basing their research on belemnites. These shrunk significantly when the water temperature rose as a result of volcanic activity approximately 183 million years ago, during the period known as the Toarcian.

Newly uncovered Arctic landscape plays important role in carbon cycle

Thu, 03/05/2020 - 19:35
As the ice sheet covering most of Greenland retreats, researchers are studying the newly revealed landscape to understand its role in the carbon cycle.

Almost alien: Antarctic subglacial lakes are cold, dark and full of secrets

Wed, 03/04/2020 - 13:14
More than half of the planet's fresh water is in Antarctica. While most of it is frozen in the ice sheets, underneath the ice pools and streams of water flow into one another and into the Southern Ocean surrounding the continent. Understanding the movement of this water, and what is dissolved in it as solutes, reveals how carbon and nutrients from the land may support life in the coastal ocean.

Ancient Australian trees face uncertain future under climate change, study finds

Tue, 03/03/2020 - 13:01
Tasmania's ancient rainforest faces a grim future as a warming climate and the way people used the land have brought significant changes to the island state off mainland Australia's southeastern coast, according to a new study.