Science Daily

An international team of researchers has gained new insights into the carbon dioxide exchange between ocean and atmosphere, thus making a significant contribution to solving one of the great scientific mysteries of the ice ages.

Methane was seeping from the seafloor for thousands of years following the retreat of the Barents Sea ice sheet, shows a groundbreaking new study.

Neanderthals in Europe showed signs of nutritional stress during periods of extreme cold, suggesting climate change may have contributed to their demise around 40,000 years ago.

The last Ice Age made much of the globe uninhabitable, but there were oases -- or refugia -- where people 20,000 years ago were able to cluster and survive.  Researchers who specialize in the analysis of human DNA have found new evidence that there was one or more of these shelters in what is now Southern Arabia. 

Climate change is melting glaciers, reducing sea-ice cover and increasing wildlife activity -- with some of the most dramatic impacts occurring in the northern high latitudes. New research projects an increased probability of fires occurring in Alaskan boreal forest and tundra under a warmer, drier climate.

Earth system scientists have taken water samples from the north Pacific, north and south Atlantic, and Arctic oceans in search of repositories of black carbon, soot from burning biomass and diesel engines, among other sources. They’ve found considerably less of the material than expected, and they’ve discovered that it exists in at least two varieties, a younger pool closer to the ocean’s surface that is absorbed into the environment in a roughly 100-year cycle and an ancient reserve that remains stable for millennia.

A unique series of measurements taken over several years in the Antarctic Ocean provide new findings about the daily vertical migration of zooplankton communities: scientists of the observed changes during the year and between years.

Researchers have compiled the first global set of observations of flow within the Earth's mantle -- the layer between the crust and the core -- and found that it is moving much faster than has been predicted.

The Antarctic ice sheet, with a thickness of up to 4800 meter, has lost mass in the recent years. This was confirmed by a variety of scientific studies. Scientists now visualize the ice-mass loss: The interested public and scientific community can follow the Antarctic ice-mass changes month by month and divided by regions.

Researchers have developed a new technique to monitor the seasonal changes in Greenland's ice sheet, using seismic vibrations generated by crashing ocean waves. The results may help scientists pinpoint regions of the ice sheet that are most vulnerable to melting. The technique may also set better constraints on how the world's ice sheets contribute to global sea-level changes.

The oldest surviving species of vertebrates, such as the cane toad and the California sea lion, which have endured past extreme environmental events, will be more likely to adapt to future climate changes than younger species, such as the European hamster, according to a study. These species include those with various color morphs; those which give birth to live young; and/or which live at low latitudes.

Scientists have identified climate warming as the dominant driver of an increase in algal growth in the Athabasca oilsands region of northern Alberta.

Land water, including groundwater extraction, contributes far less to sea level rise than previously thought, according to a new study.

The Arctic amplification phenomenon refers to the faster rate of warming in the Arctic compared to places farther south. Arctic amplification has been linked to a spike in the number of persistent cold spells experienced in recent years over Europe and North America.

Analyses of ancient DNA from prehistoric humans paint a picture of dramatic population change in Europe from 45,000 to 7,000 years ago, according to a new study. The new genetic data reveal two big changes in prehistoric human populations that are closely linked to the end of the last Ice Age around 19,000 years ago.

Although the coastal regions of the Greenland Ice Sheet are experiencing rapid melting, a significant portion of the interior of that ice sheet has remained stable -- but a new study suggests that stability may not continue. Researchers found that very little of the snow and ice on the vast interior of the ice sheet is lost to the atmosphere through evaporation because of a strong thermal 'lid' that essentially traps the moisture and returns it to the surface where it refreezes.

New research provides the first look into the biogeochemistry, geophysics and geology of Subglacial Lake Whillans, which lies 800 meters (2,600 feet) beneath the West Antarctic Ice Sheet.

Surface meltwater draining through and underneath Greenland's tidewater glaciers is accelerating their loss of ice mass, according to a new study that sheds light on the relationship between meltwater and subglacial discharge.

Just as parts of South Florida are bracing for potential risks of flooding in low-lying areas due to the close proximity of the moon, high tides, sea-level rise and inclement weather, researchers are bringing together professionals from the private and public sectors to help identify solutions and develop adaptation pathways.

To bridge the gap between projections of future sea-level rise and the need to prepare for it, a research team developed a method that consolidates climate models and the range of opinions that leading scientists have about them into a single, consistent set of probabilities.