Science Daily

Forest loss declined 18% in African nations where a new satellite-based program provides free alerts when it detects deforestation activities.

Underwater excavation, borehole drilling, and modelling suggests a massive paleo-tsunami struck near the ancient settlement of Tel Dor between 9,910 to 9,290 years ago, according to a new study.

Compared to the first peopling of Polynesia, the settlement of the Mariana Islands in the Western Pacific, which happened around 3,500 years ago, has received little attention. Researchers have now obtained answers to long debated questions regarding the origin of the first colonizers of the Marianas and their relationship to the people who initially settled in Polynesia.

The threshold for dangerous global warming will likely be crossed between 2027 and 2042 - a much narrower window than the Intergovernmental Panel on Climate Change's estimate of between now and 2052. Researchers introduce a new and more precise way to project the Earth's temperature. Based on historical data, it considerably reduces uncertainties compared to previous approaches.

New study supports hypothesis that Ontong Java Plateau large igneous province eruptions led to oceanic anoxic event 1a, 127 to 100 million years ago.

Sea level could rise higher than current estimates by 2100 if climate change is unchallenged, according to a new assessment.

New research is changing the way aircraft and wind turbine operators are addressing the risks related to ice build-up. A team has broadened the scope and functionality of their ice sensors.

Scientists have now used permanently installed underwater microphones, which have been recording for the past nine years, to successfully gather and analyze whale observation data from the Weddell Sea. The AWI's underwater recordings confirm: Minke whales prefer the shelter of sea ice, while humpback whales avoid it.

The jagged terrain of Greenland's mountains is protecting some of the island's outlet glaciers from warm coastal waters, according to a team of researchers. However, in regions where the flat bedrock offers no such protection, runaway thinning can reach far into the ice sheet and eat away at previously unaffected ice and contribute to sea level rise.

Researchers have provided new evidence that today's desert landscape of the Colorado River's lower valley was submerged roughly 5 million to 6 million years ago under shallow seas with strong, fluctuating tidal currents.

Oceanographers have an explanation for the Arctic's puzzling ocean turbulence: Their study suggests waters will become more turbulent as Arctic loses summertime ice.

A new study, applying the latest climate models, of which the MAR predicts a 60% greater melting of the Greenland ice sheet than previously predicted. Data that will be included in the next IPCC report.

Experts recently discovered that atmospheric conditions near Alaska can affect sea ice conditions in the Arctic Ocean months later. The team used various data, including ship-based data from 2018, to uncover how a single atmospheric event over the northern Pacific Ocean caused significantly delayed sea ice formation in the Pacific Arctic region.

Since the discovery that atmospheric carbon dioxide (CO2) concentrations were lower during past ice ages, the cause has been a mystery. Now, fossils of ocean algae reveal that a weakening in upwelling in the Antarctic Ocean kept more CO2 in the deep ocean during the ice ages. This brings scientists closer to a complete explanation for the glacial cycle and suggests that upwelling will strengthen under anthropogenic global warming, altering global climate and ocean ecosystems.

The idea that mass extinctions allow many new types of species to evolve is a central concept in evolution. But a new study using artificial intelligence to examine the fossil record finds this is rarely true, and there must be another explanation.

Polar climate scientists have created the most high resolution past record of the Southern Hemisphere westerly winds. The results describe how the winds are likely to intensify and migrate poleward as the climate warms. The study highlights the urgent need for better models to predict the future.

In Finland, the majority of the glacial and warm interval records have been interpreted to represent only the last, Weichselian, glacial cycle that took place 11,700-119,000 years ago. Researchers have now revised the crucial part of the existing stratigraphic documentation in southern Finland. The new findings show that a considerable part of the warm interval records extends further back in time than earlier thought. The new results change the established conceptions about glacial history in the area.

A team of researchers understands more about the melting of the Greenland ice sheet. They discovered a flow of hot rocks, known as a mantle plume, rising from the core-mantle boundary beneath central Greenland that melts the ice from below.

Researchers have shown that abrupt climate change occurred as a result of widespread decrease of sea ice. This scientific breakthrough concludes a long-lasting debate on the mechanisms causing abrupt climate change during the glacial period. It also documents that the cause of the swiftness and extent of sudden climate change must be found in the oceans.

Scientists predict Greenland ice sheet will pass a threshold beyond which it will never fully regrow and sea levels will be permanently higher in as little as 600 years under current climate change projections, as Greenland's climate would be permanently altered as the ice sheet shrinks.