Science Daily

Subscribe to Science Daily feed Science Daily
Read science articles on the ice age, glaciation and climatology. Discover the connection between ice ages and global warming.
Updated: 14 min 42 sec ago

Removing CO2 from the air required to safeguard children's future

Tue, 07/18/2017 - 10:37
Reducing greenhouse-gas emissions is not enough to limit global warming to a level that wouldn't risk young people's future, according to a new study by scientists who say we need negative emissions. Measures such as reforestation could accomplish much of the needed CO2 removal from the atmosphere, but continued high fossil fuel emissions would demand expensive technological solutions to extract CO2 and prevent dangerous warming.

Stronger winds heat up West Antarctic ice melt

Mon, 07/17/2017 - 10:54
Stronger winds 6000kms away on the East Antarctic, have generated waves that circle the continent at almost 700kmh. When these waves meet the steep underwater topography of the West Antarctic Peninsula they push warm water under the ice shelves. This helps explain the increased ice melt in this region that can lead trillion tonne ice shelves, like Larsen C, to break away from the continent.

Chillier Winters, Smaller Beaks

Thu, 07/13/2017 - 07:20
Although Charles Darwin lived and worked in the 19th century, modern evolutionary biologists are far from exhausting all avenues of inquiry regarding birds and evolution. For example, in the 1990s, researchers began to explore a new question concerning the relationship between climate and the evolution of beak size.

The one trillion ton iceberg: Larsen C Ice Shelf rift finally breaks through

Wed, 07/12/2017 - 10:05
A one trillion tonne iceberg -- one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice finally completed its path through the ice.

Most comprehensive database on past global changes is online

Tue, 07/11/2017 - 11:56
Climate scientists will now be able to more accurately study the pattern and causes of global surface temperature changes than was previously possible, thanks to a large international team of scientists contributing to PAGES (Past Global Changes).

Warm winter events in Arctic becoming more frequent, lasting longer

Tue, 07/11/2017 - 11:15
Arctic winter warming events -- winter days where temperatures peak above 14 degrees Fahrenheit (minus 10 degrees Celsius) -- are a normal part of the climate over the ice-covered Arctic Ocean. But new research by an international team that includes NASA scientists finds these events are becoming more frequent and lasting longer than they did three decades ago.

Does the European public understand the impacts of climate change on the ocean?

Tue, 07/11/2017 - 07:55
Although many are relatively well informed, an alarming number remain either uninformed or misinformed when it comes to the impacts of climate change on the ocean, a new in-depth study of the European public's awareness shows. Many believe that Arctic sea-ice is already completely lost during the summer and that sea temperatures have already risen by more than 2°C. Climate science needs to be effectively communicated to the public so that citizens demand climate action.

Greenland ice sheet toxicity

Mon, 07/10/2017 - 22:27
The Greenland ice sheet is often seen as a pristine environment, but new research has revealed that may not be the case. Scientists have examined how microbes from the ice sheet have the potential to resist and degrade globally-emitted contaminants such as mercury, lead, PAH and PCB.

Big, shape-shifting animals from the dawn of time

Mon, 07/10/2017 - 10:37
Major changes in the chemical composition of the world's oceans enabled the first large organisms -- possibly some of the earliest animals -- to exist and thrive more than half a billion years ago, marking the point when conditions on Earth changed and animals began to take over the world.

Stalagmites from Iranian cave foretell grim future for Middle East climate

Mon, 07/10/2017 - 08:16
Relief from the current dry spell across the interior of the Middle East is unlikely within the next 10,000 years, results of a new study show, which include information during the last glacial and interglacial periods.

Falling sea level caused volcanoes to overflow

Thu, 07/06/2017 - 10:32
During the transition to the last ice age approximately 80,000 years ago global temperature declined, while the carbon dioxide content of the atmosphere remained relatively stable. Scientists have now discovered that a falling sea level may have caused enhanced volcanic activity in the ocean, which can explain the anomaly.

Global ocean health relatively stable over past five years

Wed, 07/05/2017 - 15:45
While global ocean health has remained relatively stable over the past five years, individual countries have seen changes, according to a new study.

Greenland's summer ocean bloom likely fueled by iron

Wed, 07/05/2017 - 15:44
Iron-rich meltwater from Greenland's glaciers are helping fuel a summer bloom of phytoplankton, suggests new research.

Krill hotspot fuels incredible biodiversity in Antarctic region

Wed, 07/05/2017 - 15:44
A perfect combination of tides and wind is responsible for a hotspot of Antarctic krill along the western Antarctic Peninsula.

Figuring out how fast Greenland is melting

Wed, 07/05/2017 - 15:44
A new analysis of Greenland's past temperatures will help determine how fast the island's vast ice sheet is melting. Other research shows the accelerated melting of Greenland's ice sheet is contributing to sea level rise. The new study provides the most accurate estimates of Greenland's 20th century temperatures by combining the best two of previous analyses. The finding will help improve climate models so they more accurately project future global climate change and its effects.

West Antarctic Ice Sheet loss over the last 11,000 years seen in new study

Wed, 07/05/2017 - 12:30
Wind-driven incursions of warm water forced the retreat of glaciers in West Antarctica during the past 11,000 years, a new report explains. These new results enable researchers to better understand how environmental change may impact future sea-level rise from this climate-sensitive region.

Black carbon varies, but stubbornly persists, in snow and ice around the world

Fri, 06/30/2017 - 13:07
A new study comparing dissolved black carbon deposition on ice and snow in ecosystems around the world (including Antarctica, the Arctic, and alpine regions of the Himalayas, Rockies, Andes, and Alps) shows that while concentrations vary widely, significant amounts can persist in both pristine and non-pristine areas of snow.

More summer sunshine leading to increased Greenland ice melt

Wed, 06/28/2017 - 13:49
A marked decrease in summer cloud cover during the last 20 years has significantly accelerated melt from the Greenland ice sheet, a team of researchers has concluded.

Climate change impacts Antarctic biodiversity habitat

Wed, 06/28/2017 - 12:14
Ice-free areas of Antarctica -- home to more than 99 percent of the continent's terrestrial plants and animals -- could expand by more than 17,000 km2 by the end of this century, a study reveals. The study is among the first to investigate how ice-free areas in Antarctica may be affected by climate change.

As climate stirs Arctic sea ice faster, pollution tags along

Tue, 06/27/2017 - 09:53
A warming climate is not just melting the Arctic's sea ice; it is stirring the remaining ice faster, increasing the odds that ice-rafted pollution will foul a neighboring country's waters, says a new study.