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Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
Updated: 2 hours 55 min ago

Climate change, human activity lead to nearshore coral growth decline

Wed, 08/28/2019 - 13:01
New research compares the growth rates between nearshore and offshore corals in the Belize Mesoamerican Barrier Reef System, the world's second-largest reef system. While nearshore corals have historically grown faster than those offshore, over the past decade there was a decline in the growth rates of two types of nearshore corals, while offshore coral growth rates in the same reef system stayed the same.

Prehistoric puma feces reveals oldest parasite DNA ever recorded

Tue, 08/27/2019 - 11:36
The oldest parasite DNA ever recorded has been found in the ancient, desiccated feces of a puma.

Glacier-fed rivers may consume atmospheric carbon dioxide

Tue, 08/27/2019 - 11:35
Glacier-fed rivers in northern Canada may be consuming significant amounts of carbon dioxide from the atmosphere, according to new research.

Chipping away at how ice forms could keep windshields, power lines ice-free

Tue, 08/27/2019 - 07:47
How does ice form? Surprisingly, science hasn't fully answered that question. But researchers today will explain their finding that the arrangements that surface atoms impose on water molecules are the key. Their work has implications for preventing ice formation on windshields, ships and power lines, and for improving weather prediction.

Big increase in ocean carbon dioxide absorption along West Antarctic Peninsula

Mon, 08/26/2019 - 10:26
Climate change is altering the ability of the Southern Ocean off the West Antarctic Peninsula to absorb carbon dioxide, according to a new study, and that could magnify climate change in the long run.

The case for retreat in the battle against climate change

Thu, 08/22/2019 - 13:18
With sea level rise and extreme weather threatening coastal communities, it's no longer a question of whether they are going to retreat; it's where, when and how. In a new paper, researchers advocate for a managed and planned retreat, not a short-term spur of the moment reaction to a massive storm.

Circulation of water in deep Earth's interior

Mon, 08/19/2019 - 10:00
The existence of water in deep Earth is considered to play an important role in geodynamics, because water drastically changes the physical properties of mantle rock, such as melting temperature, electric conductivity, and rheological properties. Water is transported into deep Earth by the hydrous minerals in the subducting cold plates. Hydrous minerals, such as serpentine, mica and clay minerals, contain water in the form of hydroxyl (-OH) in the crystal structure. Most of the hydrous minerals decompose into anhydrous minerals and water when they are transported into deep Earth, at 40-100 km depth, due to the high temperature and pressure conditions.

July 2019 was hottest month on record for the planet

Thu, 08/15/2019 - 12:08
Much of the planet sweltered in unprecedented heat in July, as temperatures soared to new heights in the hottest month ever recorded. The record warmth also shrank Arctic and Antarctic sea ice to historic lows.

Ice sheets impact core elements of the Earth's carbon cycle

Thu, 08/15/2019 - 07:12
The Earth's carbon cycle is crucial in controlling the greenhouse gas content of our atmosphere, and ultimately our climate.

New insight into glaciers regulating global silicon cycling

Wed, 08/14/2019 - 09:52
A new review of silicon cycling in glacial environments highlights the potential importance of glaciers in exporting silicon to downstream ecosystems.

Arctic could be iceless in September if temps increase 2 degrees

Tue, 08/13/2019 - 15:05
Arctic sea ice could disappear completely through September each summer if average global temperatures increase by as little as 2 degrees, according to a new study.

Icebergs delay Southern Hemisphere future warming, study shows

Mon, 08/12/2019 - 16:23
Future warming can accelerate the disintegration of the West Antarctic ice sheet. A large fraction of the ice will enter the Southern Ocean in form of icebergs, which melt and provide a cooling and freshening effect to the warmer and denser ocean water. This process will increase the formation of sea-ice and shift winds and ocean currents. The overall effect is a slowdown in the magnitude of human-induced Southern Hemispheric warming and sea-level rise, according to a new study.

Arctic sea-ice loss has 'minimal influence' on severe cold winter weather

Mon, 08/12/2019 - 12:08
The dramatic loss of Arctic sea ice through climate change has only a 'minimal influence' on severe cold winter weather across Asia and North America, new research has shown.

Ten years of icy data show the flow of heat from the Arctic seafloor

Thu, 08/08/2019 - 17:57
In addition to 10 years of data on the flow of heat in the Arctic ocean seafloor, researchers have published an analysis of that data using modern seismic data.

Why humans in Africa fled to the mountains during the last ice age

Thu, 08/08/2019 - 14:25
People in Ethiopia did not live in low valleys during the last ice age. Instead they lived high up in the inhospitable Bale Mountains where they had enough water, built tools out of obsidian and relied mainly on giant mole rats for nourishment.Researchers provides the first evidence that our African ancestors had already settled in the mountains during the Palaeolithic period, about 45,000 years ago.

Over a century of Arctic sea ice volume reconstructed with help from historic ships' logs

Thu, 08/08/2019 - 12:35
A new study provides a 110-year record of the total volume of Arctic sea ice, using early US ships' voyages to verify the earlier part of the record. The current sea ice volume and rate of loss are unprecedented in the 110-year record.

Earth's last magnetic field reversal took far longer than once thought

Thu, 08/08/2019 - 08:14
Every several hundred thousand years or so, Earth's magnetic field dramatically shifts and reverses its polarity. Geologist found that the most recent field reversal, some 770,000 years ago, took at least 22,000 years to complete. That's several times longer than previously thought, and the results further call into question controversial findings that some reversals could occur within a human lifetime.

Ancient plankton help researchers predict near-future climate

Thu, 08/01/2019 - 11:01
Temperature data inferred from plankton fossils from the Pliocene, an era with CO2 levels similar to today's, allowed a team to rectify discrepancies between climate models and other proxy temperature measurements.

Krypton reveals ancient water beneath the Israeli desert

Wed, 07/31/2019 - 11:54
Getting reliable precipitation data from the past has proven difficult, as is predicting regional changes for climate models in the present. A combination of isotope techniques may help resolve both.

Underwater glacial melting is occurring at higher rates than modeling predicts

Thu, 07/25/2019 - 14:04
Researchers have developed a new method to allow for the first direct measurement of the submarine melt rate of a tidewater glacier, and, in doing so, they concluded that current theoretical models may be underestimating glacial melt by up to two orders of magnitude.