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: 48 min 27 sec ago

Future climate impacts put whale diet at risk

Wed, 05/22/2024 - 21:52
A new study predicts future climate change impacts could disrupt the krill-heavy diet that humpback whales in the southern hemisphere consume.

New insights into the degradation dynamics of organic material in the seafloor

Wed, 05/22/2024 - 12:03
Many processes in the deep sea are not yet well understood, and the role of microbial communities in particular is often a big unknown. This includes, for example, how organic material that sinks from the water surface to the ocean floor is metabolised -- an important building block for a better understanding of the global carbon cycle.

'Vigorous melting' at Antarctica's Thwaites 'Doomsday' Glacier

Mon, 05/20/2024 - 14:55
Glaciologists show evidence of warm ocean water intruding kilometers beneath grounded ice at Thwaites Glacier in West Antarctica. The findings suggest that existing climate models are underestimating the impact of ocean and ice interactions in future sea level rise projections.

Record low Antarctic sea ice 'extremely unlikely' without climate change

Mon, 05/20/2024 - 11:27
Scientists have found that the record-low levels of sea ice around Antarctica in 2023 were extremely unlikely to happen without the influence of climate change. This low was a one-in-a-2000-year event without climate change and four times more likely under its effects.

GPS stations measure daily ice loss in Greenland

Tue, 05/14/2024 - 13:14
Monitoring the effects of climate change in Greenland has been made much easier with an innovative method.

2023 was the hottest summer in two thousand years

Tue, 05/14/2024 - 13:12
Researchers have found that 2023 was the hottest summer in the Northern Hemisphere in the past two thousand years, almost four degrees warmer than the coldest summer during the same period.

Today's world: Fastest rate of carbon dioxide rise over the last 50,000 years

Mon, 05/13/2024 - 14:05
Today's rate of atmospheric carbon dioxide increase is 10 times faster than at any other point in the past 50,000 years, researchers have found through a detailed chemical analysis of ancient Antarctic ice.

It flickers, then it tips -- study identifies early warning signals for the end of the African humid period

Tue, 05/07/2024 - 14:02
Tipping points in the climate system can be the result of a slow but linear development. However, they can also be accompanied by a 'flickering', with two stable climatic states that alternate before a final transition occurs -- and the climate tips permanently.

Did a magnetic field collapse trigger the emergence of animals?

Fri, 05/03/2024 - 12:53
Researchers uncovered compelling evidence that Earth's magnetic field was in a highly unusual state when the macroscopic animals of the Ediacaran Period -- 635 to 541 million years ago -- diversified and thrived. Their study raises the question of whether these fluctuations in Earth's ancient magnetic field led to shifts in oxygen levels that may have been crucial to the proliferation of life forms millions of years ago.

Ice shelves fracture under weight of meltwater lakes

Fri, 05/03/2024 - 12:53
Heavy pooling meltwater can fracture ice, potentially leading to ice shelf collapse.

Mystery behind huge opening in Antarctic sea ice solved

Wed, 05/01/2024 - 14:29
Researchers have discovered the missing piece of the puzzle behind a rare opening in the sea ice around Antarctica, which was nearly twice the size of Wales and occurred during the winters of 2016 and 2017. A study reveals a key process that had eluded scientists as to how the opening, called a polynya, was able to form and persist for several weeks.

Scientists show ancient village adapted to drought, rising seas

Tue, 04/30/2024 - 17:03
Researchers have unveiled evidence for ancient human resilience to climate change in the Eastern Mediterranean.

Ancient Maya blessed their ballcourts

Fri, 04/26/2024 - 15:51
Using environmental DNA analysis, an international team of researchers identified a collection of plants used in ceremonial rituals in the ancient Maya city of Yaxnohcah in Mexico. The plants, known for their religious associations and medicinal properties, were discovered beneath a plaza floor where a ballcourt was built.

Researchers find oldest undisputed evidence of Earth's magnetic field

Wed, 04/24/2024 - 10:15
A new study has recovered a 3.7-billion-year-old record of Earth's magnetic field, and found that it appears remarkably similar to the field surrounding Earth today.

Warming climate is putting more metals into Colorado's mountain streams

Tue, 04/23/2024 - 14:57
Warming temperatures are causing a steady rise in copper, zinc and sulfate in the waters of Colorado mountain streams affected by acid rock drainage. Concentrations of these metals have roughly doubled in these alpine streams over the past 30 years, presenting a concern for ecosystems, downstream water quality and mining remediation, according to a new study. Natural chemical weathering of bedrock is the source of the rising acidity and metals, but the ultimate driver of the trend is climate change, the report found, and the results point to lower stream volumes and exposure of rock once sealed away by ice as the likely causes.

Feedback loop that is melting ice shelves in West Antarctica revealed

Mon, 04/22/2024 - 11:07
New research has uncovered a feedback loop that may be accelerating the melting of the floating portions of the West Antarctic Ice Sheet, pushing up global sea levels. The study sheds new light on the mechanisms driving the melting of ice shelves beneath the surface of the ocean, which have been unclear until now.

Data-driven music: Converting climate measurements into music

Thu, 04/18/2024 - 10:19
A geo-environmental scientist from Japan has composed a string quartet using sonified climate data. The 6-minute-long composition -- entitled 'String Quartet No. 1 'Polar Energy Budget'-- is based on over 30 years of satellite-collected climate data from the Arctic and Antarctic and aims to garner attention on how climate is driven by the input and output of energy at the poles.

Ice age climate analysis reduces worst-case warming expected from rising CO2

Wed, 04/17/2024 - 17:27
A detailed reconstruction of climate during the most recent ice age, when a large swath of North America was covered in ice, provides information on the relationship between CO2 and global temperature. Results show that while most future warming estimates remain unchanged, the absolute worst-case scenario is unlikely.

Paradox of extreme cold events in a warming world

Wed, 04/17/2024 - 12:10
The Warm Arctic-Cold Continent (WACC) phenomenon is the puzzling combination of Arctic warming and extreme coldness in specific mid-latitude regions. However, the progression of WACC events remains unclear amidst global warming. Scientists have now predicted a sharp decline in the WACC phenomenon post-2030s, affecting extreme weather events. These findings offer critical insights for communities, scientists, and policymakers to refine climate models and strategies and battle climate change.

Yellowstone Lake ice cover unchanged despite warming climate

Tue, 04/16/2024 - 11:53
While most lakes around the world are experiencing shorter durations of ice cover, the length of time that Yellowstone Lake is covered by ice each year has not changed in the past century, possibly due to increased snowfall.