Ice Ages

Ice Ages News -- ScienceDaily Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.

  • Mountain glaciers shrinking across Western U.S.
    on October 20, 2017 at 10:25 pm

    A technique using satellites to create twice-yearly elevation maps of US mountain glaciers provides new insight into thinning of glaciers in the lower 48 states. […]

  • Fossil coral reefs show sea level rose in bursts during last warming
    on October 19, 2017 at 2:09 pm

    Scientists have discovered that Earth's sea level did not rise steadily when the planet's glaciers last melted during a period of global warming; rather, sea level rose sharply in punctuated bursts. […]

  • Ice stream retreats under a cold climate
    on October 19, 2017 at 2:08 pm

    Warmer ocean surface triggered the ice retreat during The Younger Dryas. […]

  • Hardy corals make their moves to build new reefs from scratch
    on October 18, 2017 at 3:35 pm

    Resilient species of coral can move to inhospitable areas and lay the foundations for new reefs, a study shows. […]

  • Nice ice, maybe: Study finds water-repelling surfaces ease ice removal
    on October 18, 2017 at 12:56 pm

    A new study has discovered that ice grows differently on water-absorbent vs. water-repellent surfaces. The research suggests that applying water-repellent coatings to windshields before winter storms -- or engineering surfaces that inherently repel water -- could enable a strong breeze to handle the burden of ice removal. […]

  • Study reshapes understanding of climate change's impact on early societies
    on October 17, 2017 at 4:43 pm

    A new study linking paleoclimatology -- the reconstruction of past global climates -- with historical analysis shows a link between environmental stress and its impact on the economy, political stability, and war-fighting capacity of ancient Egypt. […]

  • Study shows how water could have flowed on 'cold and icy' ancient Mars
    on October 17, 2017 at 3:43 pm

    Research by planetary scientists finds that periodic melting of ice sheets on a cold early Mars would have created enough water to carve the ancient valleys and lakebeds seen on the planet today. […]

  • Fanged kangaroo research could shed light on extinction
    on October 16, 2017 at 1:27 pm

    Fanged kangaroos -- an extinct family of small fanged Australian kangaroos -- might have survived at least five million years longer than previously thought. A new study has found the species might have competed for resources with ancestors of modern kangaroos. […]

  • Waves in lakes make waves in the Earth
    on October 16, 2017 at 12:19 pm

    Scientists report that small seismic signals in lakes can aid science. As a record of wave motion in a lake, they can reveal when a lake freezes over and when it thaws. And as a small, constant source of seismic energy in the surrounding earth, lake microseisms can shine a light on the geology surrounding a lake. […]

  • Melting ice makes the sea around Greenland less saline
    on October 13, 2017 at 3:30 pm

    For the first time, ocean data from Northeast Greenland reveals the long-term impact of the melting of the Greenland ice sheet. The observed increase in freshwater content will affect the conditions in all Greenland fjords and may ultimately affect the global ocean currents that keep Europe warm. […]

  • Geologic evidence is the forerunner of ominous prospects for a warming Earth
    on October 12, 2017 at 3:48 pm

    While strong seasonal hurricanes have devastated many of the Caribbean and Bahamian islands this year, geologic studies on several of these islands illustrate that more extreme conditions existed in the past. A new analysis shows that the limestone islands of the Bahamas and Bermuda experienced climate changes that were even more extreme than historical events. […]

  • Carbon dioxide levels lower than thought during super greenhouse period
    on October 12, 2017 at 2:37 pm

    Researchers adds to the understanding of Earth's historic hyperthermal events to help explain the planet's current warming trend. […]

  • Formation of coal almost turned our planet into a snowball
    on October 9, 2017 at 7:49 pm

    While burning coal today causes Earth to overheat, about 300 million years ago the formation of that same coal brought our planet close to global glaciation. For the first time, scientists show the massive effect in a new study. […]

  • Mars study yields clues to possible cradle of life
    on October 6, 2017 at 7:49 pm

    The discovery of evidence for ancient sea-floor hydrothermal deposits on Mars identifies an area on the planet that may offer clues about the origin of life on Earth. The research offers evidence that these deposits were formed by heated water from a volcanically active part of the planet's crust entering the bottom of a large sea long ago. […]

  • 12,000 years ago, Florida hurricanes heated up despite chilly seas
    on October 5, 2017 at 4:50 pm

    Category 5 hurricanes may have slammed Florida repeatedly during the chilly Younger Dryas, 12,000 years ago. The cause? Hurricane-suppressing effects of cooler sea surface were out-weighed by side effects of slowed ocean circulation. […]

  • Ancient humans left Africa to escape drying climate
    on October 4, 2017 at 7:12 pm

    Humans migrated out of Africa as the climate shifted from wet to dry about 60,000 years ago, according to new paleoclimate research. What the northeast Africa climate was like when people migrated from Africa into Eurasia between 70,000 and 55,000 years ago is still uncertain. The new research shows around 70,000 years ago, the Horn of Africa climate shifted from a wet phase called 'Green Sahara' to even drier than the region is now. […]

  • Scale of human impact on planet has changed course of Earth's history, scientists suggest
    on October 2, 2017 at 2:52 pm

    The significant scale of human impact on our planet has changed the course of Earth history, an international team of scientists. […]

  • Antarctica: Return of the Weddell polynya supports Kiel climate model
    on September 29, 2017 at 1:33 pm

    Currently, winter has still a firm grip on Antarctica. At this time of the year, the Weddell Sea usually is covered with a thick layer of sea ice. In spite of the icy temperatures in the region, satellite images depict a large ice-free area in the middle of the ice cover. […]

  • Mapping the Tasmanian tiger's mysterious loss from mainland
    on September 28, 2017 at 1:42 pm

    Ancient DNA extracted from fossil bones and museum specimens has shed new light on the mysterious loss of the Tasmanian tiger (thylacine) from Australia's mainland. […]

  • Did rapid sea-level rise drown fossil coral reefs around Hawaii?
    on September 28, 2017 at 1:42 pm

    Investigations to predict changes in sea levels and their impacts on coastal systems are a step closer, as a result of a new international collaboration. […]

  • New iceberg calved from Pine Island Glacier
    on September 27, 2017 at 2:45 pm

    A new iceberg calved from Pine Island Glacier -- one of the main outlets where ice from the interior of the West Antarctic Ice Sheet flows into the ocean. […]

  • Antarctica: The wind sublimates snowflakes
    on September 25, 2017 at 7:14 pm

    A team of researchers has collected new data that shows a significant decrease in snow precipitation close to the ground in Antarctica, which has an impact on the ice sheet surface mass balance. […]

  • Getting the measure of mud
    on September 25, 2017 at 2:47 pm

    For the first time, researchers have been able to use mud deposited on the depths of the ocean floor to measure changes in the speed of deep-sea currents. Using mud as a current meter could help scientists to identify fluctuating patterns in ocean current speeds stretching back into prehistory, enabling climate change researchers to get a better sense of how currents behave over time. […]

  • Fly away home? Ice age may have clipped bird migration
    on September 20, 2017 at 6:46 pm

    The onset of the last ice age may have forced some bird species to abandon their northerly migrations for thousands of years, says new research led by an ornithologist. The study challenges a long-held presumption that birds merely shortened their migratory flights when glaciers advanced south to cover much of North America and northern Europe about 21,000 years ago. […]

  • 10,000 year-old DNA proves when fish colonialized our lakes
    on September 20, 2017 at 2:45 pm

    DNA in lake sediment forms a natural archive displaying when various fish species colonized lakes after the glacial period. Scientists' analyses of the prevalence of whitefish DNA in sediment reveal that the whitefish came to Lake Stora Lögdasjön in Västerbotten already 10,000 years ago, whereas Lake Hotagen in Jämtland had its whitefish only 2,200 years ago. […]

  • Gravity waves influence weather and climate
    on September 20, 2017 at 2:00 pm

    Gravity waves form in the atmosphere as a result of destabilizing processes. The effects of gravity waves can only be taken into consideration by including additional special components in the models. […]

  • Atmospheric effects of Arctic snowmelt
    on September 20, 2017 at 2:00 pm

    Researchers are exploring the changing chemistry of the Arctic's atmosphere to help answer the question of what happens as snow and ice begin to melt. […]

  • End-of-summer Arctic sea ice extent is eighth lowest on record
    on September 19, 2017 at 8:01 pm

    Arctic sea ice appeared to have reached its yearly lowest extent on Sept. 13, scientists have reported. Analysis of satellite data showed that at 1.79 million square miles (4.64 million square kilometers), this year's Arctic sea ice minimum extent is the eighth lowest in the consistent long-term satellite record, which began in 1978. […]

  • Studies of ‘Crater Capital' in the Baltics show impactful history
    on September 18, 2017 at 1:28 pm

    Studies of craters in the Baltics (Estonia) are giving insights into the many impacts that have peppered the Earth over its long history. In southeastern Estonia, scientists have dated charcoal from trees destroyed in an impact to prove a common origin for two small craters, named Illumetsa. A third submarine crater located on the seabed in the Gulf of Finland has been measured and dated with with precision. […]

  • Arctic sea ice once again shows considerable melting
    on September 15, 2017 at 2:36 pm

    This September, the extent of Arctic sea ice shrank to roughly 4.7 million square kilometres, scientists have determined. […]