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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 14 min ago

Massive impact crater from a kilometer-wide iron meteorite discovered in Greenland

Wed, 11/14/2018 - 15:00
An international team has discovered a 31-km wide meteorite impact crater buried beneath the ice-sheet in the northern Greenland. This is the first time that a crater of any size has been found under one of Earth's continental ice sheets.

For arid, Mars-like Peruvian desert, rain brings death

Wed, 11/14/2018 - 13:43
When rains fell on the arid Atacama Desert, it was reasonable to expect floral blooms to follow. Instead, the water brought death. Planetary astrobiologists has found that after encountering never-before-seen rainfall three years ago at the arid core of Peru's Atacama Desert, the heavy precipitation wiped out most of the microbes that had lived there.

First tally of US-Russia polar bears finds a healthy population

Wed, 11/14/2018 - 13:43
The first scientific assessment of polar bears that live in the Chukchi Sea region that spans the US and Russia finds the population is healthy and does not yet appear to be suffering from declining sea ice.

Arctic sea ice: Simulation versus observation

Tue, 11/13/2018 - 10:03
As an indicator of the impacts of climate change, Arctic sea ice is hard to beat. Scientists have observed the frozen polar ocean advance and retreat at this most sensitive region of the Earth over decades for insight on the potential ripple effects on assorted natural systems: global ocean circulation, surrounding habitats and ecosystems, food sources, sea levels and more.

Alpine ice shows three-fold increase in atmospheric iodine

Mon, 11/12/2018 - 18:18
Analysis of iodine trapped in Alpine ice has shown that levels of atmospheric iodine have tripled over the past century, which partially offsets human-driven increases in the air pollutant, ozone.

Primates of the Caribbean: Ancient DNA reveals history of mystery monkey

Mon, 11/12/2018 - 18:16
Analysis of ancient DNA of a mysterious extinct monkey named Xenothrix -- which displays bizarre body characteristics very different to any living monkey -- has revealed that it was in fact most closely related to South America's titi monkeys (Callicebinae). Having made their way overwater to Jamaica, probably on floating vegetation, their bones reveal they subsequently underwent remarkable evolutionary change.

Con­ser­va­tion areas help bird­life ad­apt to cli­mate change

Mon, 11/12/2018 - 12:16
A warming climate is pushing organisms towards the circumpolar areas and mountain peaks. A recently conducted study on changes in bird populations reveals that protected areas slow down the north-bound retreat of species.

How much debris is lying on glaciers?

Fri, 11/09/2018 - 09:14
Scientist show a possibility to detect the extent of debris on mountain glaciers globally and automatically vi a satellite monitoring. The scientists used the cloud computing platform Google Earth Engine for their study.

One million years of precipitation history of the monsoon reconstructed

Thu, 11/08/2018 - 08:13
With its wind and precipitation patterns, the South Asian Monsoon influences the lives of several billion people. Recent studies indicate that its drivers are more complex than previously assumed. Scientists have now published a reconstruction of precipitation over the eastern Indian Ocean over the past one million years. It points to connections with controlling processes in the southern hemisphere that have received little attention so far.

Far fewer lakes below the East Antarctic Ice Sheet than previously believed

Wed, 11/07/2018 - 09:36
Researchers recently assessed subglacial lakes detected by satellite, and found very little water. But if that's the case, what is the source of the East Antarctic Ice Sheet's massive ice streams?

How to reduce the impact of shipping vessel noise on fish? Slow them down

Mon, 11/05/2018 - 11:24
One concern with the increase vessel transits in the western Canadian Arctic is how noise pollution can detrimentally affect marine animals. Researchers have found that the negative impact of noise from shipping vessels can be mitigated by reducing the ship's speed.

Enhanced views of Earth tectonics

Mon, 11/05/2018 - 09:53
Scientists have used data from the European Space Agency (ESA), Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission to unveil key geological features of the Earth's lithosphere -- the rigid outer layer that includes the crust and the upper mantle.

What happened in the past when the climate changed?

Wed, 10/31/2018 - 13:14
New research shows for the first time how the changing climate in Asia, from 5,000 to 1,000 years ago, transformed people's ability to produce food in particular places. The model enables the co-authors to get at the causes of some dramatic historic and cultural changes.

Earliest recorded lead exposure in 250,000-year-old Neanderthal teeth

Wed, 10/31/2018 - 13:14
Using evidence found in teeth from two Neanderthals from southeastern France, researchers report the earliest evidence of lead exposure in an extinct human-like species from 250,000 years ago.

Why a warmer world may equal a wetter Arctic

Mon, 10/29/2018 - 12:52
As the Arctic warms, it's predicted to get wetter. But why? A new study looks to history for answers, examining what happened in the region during a period of warming some 8,000 years ago. The research finds evidence that in this ancient time, western Greenland became more humid, a trend often linked to increased precipitation. The study further shows that two different climactic processes may have contributed to this elevated humidity.

K-core is a predictor of structural collapse in mutualistic ecosystems

Thu, 10/25/2018 - 12:59
A network metric called the K-core could predict structural collapse in mutualistic ecosystems, according to new research. The K-core appears able to forecast which species is likely to face extinction first, by global shocks such as climate change, and when an ecosystem could collapse due to external forces.

Ice-age climate clues unearthed

Wed, 10/24/2018 - 15:36
Scientist are working to improve climate models using paleoclimate proxies, indicators like chemical compounds in plants and microorganisms preserved in ancient lake sediments that hold rich data about past climate conditions on Earth.

Oldest weapons ever discovered in North America pre-date Clovis

Wed, 10/24/2018 - 13:55
Researchers have discovered what are believed to be the oldest weapons ever found in North America: ancient spear points that are 15,500 years old. The findings raise new questions about the settlement of early peoples on the continent.

Climate change: US desert areas to become even drier

Wed, 10/24/2018 - 13:26
Geologists study rainfall patterns in the distant past to better understand how deserts in the southwest United States will be impacted by future climate change.

Investigating glaciers in depth

Wed, 10/24/2018 - 08:53
Global sea level is rising constantly. One factor contributing to this rise is the melting of the glaciers. However, although the surface area of the glaciers has been well mapped, there is often no information regarding their thickness, making it impossible to calculate their volume. As a result, we cannot accurately calculate the effects on sea levels. Researchers have developed an approach which can be used to draw up regional ice thickness maps for glaciers.

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