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Carbon dioxide-rich liquid water in ancient meteorite

Science Daily - Wed, 04/21/2021 - 14:12
Scientists detect small pockets of carbon dioxide-rich liquid water in a meteorite dating from the early solar system.

Climate 'tipping points' need not be the end of the world

Science Daily - Wed, 04/21/2021 - 11:46
The disastrous consequences of climate 'tipping points' could be averted if global warming was reversed quickly enough, new research suggests.

Solar panels are contagious - but in a good way

Science Daily - Wed, 04/21/2021 - 11:45
The number of solar panels within shortest distance from a house is the most important factor in determining the likelihood of that house having a solar panel, when compared with a host of socio-economic and demographic variables. This is shown in a new study by scientists using satellite and census data of the city of Fresno in the US, and employing machine learning.

Oceanographers reveal links between migrating Gulf Stream and warming ocean waters

Science Daily - Tue, 04/20/2021 - 11:14
The Northwest Atlantic Shelf is one of the fastest-changing regions in the global ocean, and is currently experiencing marine heat waves, altered fisheries and a surge in sea level rise along the North American east coast. A new article reveals the causes, potential predictability and historical context for these types of rapid changes.

Can extreme melt destabilize ice sheets?

Science Daily - Tue, 04/20/2021 - 08:28
Researchers have deciphered a trove of data that shows one season of extreme melt can reduce the Greenland Ice Sheet's capacity to store future meltwater - and increase the likelihood of future melt raising sea levels.

Rock glaciers will slow Himalayan ice melt

Science Daily - Tue, 04/20/2021 - 08:28
Some Himalayan glaciers are more resilient to global warming than previously predicted, new research suggests.

Ice cap study promises new prospects for accurate local climate projections

Science Daily - Mon, 04/19/2021 - 10:01
New, detailed study of the Renland Ice Cap offers the possibility of modelling other smaller ice caps and glaciers with much greater accuracy than hitherto. The study combined airborne radar data to determine the thickness of the ice cap with on-site measurements of the thickness of the ice cap and satellite data. Researchers gathered data from the ice cap in 2015, and this work has now come to fruition: More exact predictions of local climate conditions.

Modelling ancient Antarctic ice sheets helps us see future of global warming

Science Daily - Thu, 04/15/2021 - 16:05
In order to get a sense of what our future may hold, scientists have been looking to the deep past. Now, new research from the University of Massachusetts Amherst, which combines climate, ice sheet and vegetation model simulations with a suite of different climatic and geologic scenarios, opens the clearest window yet into the deep history of the Antarctic ice sheet and what our planetary future might hold.

Ocean temperature reconstructed over the last 700,000 years

Science Daily - Wed, 04/14/2021 - 14:49
Researchers have reconstructed for the first mean ocean temperatures over the last 700,000 years using ice core data. The new knowledge serves to improve our understanding of the climate system.

Snow chaos in Europe caused by melting sea-ice in the Arctic

Science Daily - Tue, 04/13/2021 - 10:06
The April snow falling on fruit blossoms in Europe these days may be directly connected to the loss of the sea ice in the Barents Sea in the Arctic.  That was definitely the case in 2018 when the sudden cold spell known as 'Beast from the East' descended on the mid-latitudes of the continent,  a new study shows.

Thick sea-ice warms Greenland fjords

Science Daily - Mon, 04/12/2021 - 07:45
A new study shows that thick sea-ice can increase the sensitivity of Greenlandic fjords to climate warming. Understanding the factors that control how fast glaciers move, break up and deposit chunks of ice (icebergs) into the fjords - and eventually the sea - is vital for predicting how the Greenland ice sheet will change under a warming climate and for predicting global rates of sea-level rise.

Unsettling currents: Warm water flowing beneath the 'Doomsday Glacier'

Science Daily - Fri, 04/09/2021 - 13:58
Researchers have been able to obtain data from underneath Thwaites Glacier, also known as the 'Doomsday Glacier'. They find that the supply of warm water to the glacier is larger than previously thought, triggering concerns of faster melting and accelerating ice flow.

Abrupt ice age climate changes behaved like cascading dominoes

Science Daily - Fri, 04/09/2021 - 09:45
Throughout the last ice age, the climate changed repeatedly and rapidly during so-called Dansgaard-Oeschger events, where Greenland temperatures rose between 5 and 16 degrees Celsius in decades. When certain parts of the climate system changed, other parts of the climate system followed like a series of dominos toppling in succession. Today, sea-ice extent is being rapidly reduced, and it is uncertain whether this part of the climate system can trigger sudden future climate change.

One-third of Antarctic ice shelf area at risk of collapse as planet warms

Science Daily - Thu, 04/08/2021 - 10:23
Study shows highest warming scenario would put 34% of Antarctic's ice shelf area at risk of fracture and collapse from melting and run-off - including 67% of the Antarctic Peninsular ice shelf area. This would allow glaciers to flow freely into the sea causing sea level rise.

Lightning strikes will more than double in Arctic as climate warms

Science Daily - Mon, 04/05/2021 - 10:36
Scientists have detailed how Arctic lightning strikes stand to increase by about 100 percent over northern lands by the end of the century as the climate continues warming.

Evidence of Antarctic glacier's tipping point confirmed

Science Daily - Thu, 04/01/2021 - 20:16
Researchers have confirmed for the first time that Pine Island Glacier in West Antarctica could cross tipping points, leading to a rapid and irreversible retreat which would have significant consequences for global sea level.

Ancient meteoritic impact over Antarctica 430,000 years ago

Science Daily - Wed, 03/31/2021 - 13:30
A research team of international space scientists has found new evidence of a low-altitude meteoritic touchdown event reaching the Antarctic ice sheet 430,000 years ago.

How Middle East dust intensifies summer monsoons on Indian subcontinent

Science Daily - Wed, 03/31/2021 - 10:48
A new study details how the Indian Summer Monsoon is supercharged by atmospheric dust particles swept up by winds from deserts in the Middle East.

Architecture of Eolian successions under icehouse and greenhouse conditions

Science Daily - Tue, 03/30/2021 - 16:10
Anthropogenic climate change is one of the foremost scientific and societal challenges. In part, our response to this global challenge requires an enhanced understanding of how the Earth's surface responds to episodes of climatic heating and cooling.

In the deep sea, the last ice age is not yet over

Science Daily - Tue, 03/30/2021 - 11:12
While investigating gas hydrate deposits in the western Black Sea, a team of scientists made surprising discoveries. Contrary to previous findings and theories, the scientists found free methane gas in layers where it should actually not appear. The authors conclude that the gas hydrate system in the deep-sea fan of the Danube continues to adapt due to climate changes since the last glacial maximum.

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