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UrduTo limit the impacts of climate change it is essential to predict them as accurately as possible. Regional Climate Models are high-resolution models of the Earth’s climate that are able to improve simulations of extreme weather events that may be…
Tag: TEMPERATURE-DEPENDENT PHENOMENA
Underwater ancient cypress forest offers clues to the past
When saber-toothed tigers, woolly mammoths and giant sloths roamed North America during the last Ice Age about 18,000 to 80,000 years ago, the Gulf Coast’s climate was only slightly cooler, more similar to regions to the north like Missouri and…
Antarctica wasn’t quite as cold during the last ice age as previously thought
CORVALLIS, Ore. – A study of two methods for reconstructing ancient temperatures has given climate researchers a better understanding of just how cold it was in Antarctica during the last ice age around 20,000 years ago. Antarctica, the coldest place…
Tipping elements can destabilize each other, leading to climate domino effects
Interaction between the Greenland and West Antarctic ice sheets, the Atlantic overturning circulation, and the Amazon forest
Is Earth’s core lopsided? Strange goings-on in our planet’s interior
Model of how Earth’s inner core froze into solid iron implies it may be only 500 million years old
Researchers figured out how the ancestors of modern horses migrated
Molecular biologists studied the DNA of ones that migrated from North America to Eurasia and back
The best strawberries to grow in hot locations
It’s strawberry season in many parts of the U.S, and supermarkets are teeming with these fresh heart-shaped treats. Although the bright red, juicy fruit can grow almost anywhere with lots of sunlight, production in some hot, dry regions is a…
Record-breaking temperatures more likely in populated tropics
New research shows that most extreme heat events are going to occur in the tropics rather than the poles
Dead zones formed repeatedly in North Pacific during warm climates, study finds
Over the past 1.2 million years, marine life was repeatedly extinguished in low-oxygen ‘dead zones’ in the North Pacific Ocean during warm interglacial climates
Ancient volcanic eruption destroyed the ozone layer
A catastrophic drop in atmospheric ozone levels around the tropics is likely to have contributed to a bottleneck in the human population around 60 to 100,000 years ago, an international research team has suggested. The ozone loss, triggered by the…
If countries implement Paris pledges with cuts to aerosols, millions of lives can be saved
A strategic approach to reducing both greenhouse gas emissions and air pollution can reap major health and temperature benefits, according to new UC San Diego research
Study pinpoints key causes of ocean circulation change
Researchers have identified the key factors that influence a vital pattern of ocean currents. The Atlantic meridional overturning circulation (AMOC) carries warm water from the tropics northward. Many scientists think that this heat transport makes areas including north-west Europe and…
Global warming already responsible for one in three heat-related deaths
New estimates suggest Central and South America and South-East Asia most affected regions
Extreme CO2 greenhouse effect heated up the young Earth
Very high atmospheric CO2 levels can explain the high temperatures on the still young Earth three to four billion years ago. At the time, our Sun shone with only 70 to 80 per cent of its present intensity. Nevertheless, the…
Less is more? New take on machine learning helps us “scale up” phase transitions
Features of large systems yielded from tiny simulations with super-resolution techniques
Scientists call for international investment to tackle major wheat losses
Urgent investment in new tools is needed to address major global losses of wheat crops which cost £22 billion per year. Leading scientific experts are calling for governments around the world to come together and fund a new international research…
It takes some heat to form ice!
Water freezes and turns to ice when brought in contact with a cold surface – a well-known fact. However, the exact process and its microscopic details remained elusive up to know. Anton Tamtögl from the Institute of Experimental Physics at…
Warm ice may fracture differently than cold ice
New study suggests old rules on how ice breaks may not always hold up
Dry metastable olivine and slab deformation in a wet subducting slab
While the plates carry water to the Earth’s interior, phase transitions of dry olivine, the main mineral in the plates, are thought to be responsible for deep-focus earthquakes and plate deformation. This study resolves the contradiction of the presence of…
Study reveals new details on what happened in the first microsecond of Big Bang
Researchers from University of Copenhagen have investigated what happened to a specific kind of plasma – the first matter ever to be present – during the first microsecond of Big Bang.
Does cold wildfire smoke contribute to water repellent soils in burned areas?
New pilot study finds severe water repellency in sand samples after treatment with both hot and cold smoke
Researchers identify the causes of the extreme drought that affected the Pantanal
The study shows that the 2019-20 drought resulted from a natural meteorological phenomenon similar to the one that caused the 2014-16 critical water shortage in São Paulo state, Southeast Brazil.
Microscopic fossils record ancient climate conditions
Fifty-six million years ago, as the Earth’s climate warmed by five to eight degrees C, new land mammals evolved, tropical forests expanded, giant insects and reptiles appeared and the chemistry of the ocean changed. Through it all, bacteria in the…
Pu particles from nuclear testing more complex than previously thought
Plutonium particles from British nuclear testing in outback Australia more complex than previously thought, scientists warn
University of Montana students lead prescribed wildfire burn on university ranch
University of Montana leads prescribed wildfire burn
The when and why of foehn warming in northwestern Japan
First comprehensive climatological study of Japan’s south foehn on the Toyama Plain, conducted by a University of Tsukuba team, revealed that the primary mechanism was dynamic, and that dangerously hot windstorms occurred when a typhoon was present
Global acceleration in rates of vegetation change
Wherever ecologists look, from tropical forests to tundra, ecosystems are being transformed by human land use and climate change. A hallmark of human impacts is that the rates of change in ecosystems are accelerating worldwide. Surprisingly, a new study, published…
Earth’s vegetation is changing faster today than it has over the last 18,000 years
MADISON – A global survey of fossil pollen has discovered that the planet’s vegetation is changing at least as quickly today as it did when the last ice sheets retreated around 10,000 years ago. Beginning some 3,000-to-4,000 years ago, Earth’s…
Monitoring species condemned to extinction may help save others as global temperatures rise
The White-tailed Swallow, Hirundo megaensis, and Ethiopian Bush-crow, Zavattariornis stresemanni, are living in ‘climatic lifeboats’ with their tiny ranges restricted on all sides by temperature and rainfall patterns. Even under moderate climate warming, models predict a severe loss of suitable…
Peatlands pose complex, poorly understood wildfire risk, researchers warn
Findings come five years after disastrous fire in Fort McMurray, Alberta
White roofs and more green areas would mitigate the effects of heat waves in cities
A study by the ICTA-UAB evaluates the effectiveness of different urban solutions to reduce the temperature in the Metropolitan Area of Barcelona
Northern forest fires could accelerate climate change
BU researchers used NASA satellite imaging data to analyze 30 years of Earth’s northern forests and found that fires are increasingly hampering forests’ ability to capture and store atmospheric carbon
Landmark program joins investors with scientists to confront climate change
Finance giant AllianceBernstein to work with Columbia Climate School
Cave deposits reveal Pleistocene permafrost thaw, absent predicted levels of CO2 release
Permafrost thawed as recently as 400,000 years ago, when temperatures were not much higher than today
Middle East and North Africa: Heatwaves of up to 56 degrees Celsius without climate action
The Middle East and North Africa Region (MENA) is a climate change hot spot where summers warm much faster than in the rest of the world. Some parts of the region are already among the hottest locations globally. A new…
Climate change impacts conservation sites across the Americas
A continental-scale network of conservation sites is likely to remain effective under future climate change scenarios, despite a predicted shift in key species distributions. New research, led by Durham University and published in the journal Frontiers in Ecology and Evolution…
What does 1.5 °C warming limit mean for China?
As part of the Paris Agreement, nearly all countries agreed to take steps to limit the average increase in global surface temperature to less than 2 °C, or preferably 1.5 °C, compared with preindustrial levels. Since the Agreement was adopted,…
Northern Red Sea corals live close to the threshold of resistance to cold temperatures
Though these corals can tolerate very high temperatures, a new study reveals that even a slight cold spell can cause bleaching
Understanding the Source of Extremely Small Particles above the Amazon
The aerosol particles that serve as seeds for cloud formation are major drivers of global climate change. However, the sources and chemical processes behind the formation of these particles are unclear. Researchers have now found that carbon-based compounds from natural biological sources drive the formation of new particles. These sources play key roles in producing the large number of small particles in the atmosphere above the Amazon rainforest.
Reducing ocean acidification by removing CO2: Two targets for cutting-edge research
Is it possible to simultaneously address the increase of the concentration of carbon dioxide (CO 2 ) in the atmosphere and the resulting acidification of the oceans? The research of the project DESARC-MARESANUS, a collaboration between the Politecnico di Milano…
A song of ice and fiber
Sandia embarks on Arctic seafloor data project using new underwater technique
Reclamation releases technical reports supporting the 2021 SECURE Water Act Report
Climate change impacts assessed on water supplies in 17 western states
Landslides: New early warning systems reduce false alarms
Many slopes in the Campania region are covered with layers of volcanic soil, the result of repeated eruptions over the course of millennia. As the impacts of climate change worsen, including the occurrence of very intense and short rainfall in…
Towards a better understanding of natural hazard risk and economic losses in Europe
The ” Science for Disaster Risk Management 2020: acting today, protecting tomorrow “, the second of its series, has been produced with the collaboration of more than 300 experts in disaster risk management. The participants come from different disciplines and…
Melting ice sheets caused sea levels to rise up to 18 metres
It is well known that climate-induced sea level rise is a major threat. New research has found that previous ice loss events could have caused sea-level rise at rates of around 3.6 metres per century, offering vital clues as to…
‘Bottom-Up’ Approach Needed to Study Freshwater Blooms
A national research team urges more complete study of harmful cyanobacteria
In the deep sea, the last ice age is not yet over
Gas hydrate deposits in the Black Sea react to post-glacial climate changes
Scientists zero in on the role of volcanoes in the demise of dinosaurs
Graduate Center, CUNY researchers uncover evidence suggesting that volcanic carbon emissions were not a major driver of the Earth’s most recent extinction event.
Extra 100 million years before Earth saw permanent oxygen rise
The permanent rise of oxygen in the Earth’s atmosphere, which fundamentally changed the subsequent nature of Earth’s habitability, occurred much later than thought, according to new research. And the study, from an international team led by the University of Leeds…
New nondestructive optical technique reveals the structure of mother-of-pearl
MADISON, Wis. — Most people know mother-of-pearl, an iridescent biomineral also called nacre, from buttons, jewelry, instrument inlays and other decorative flourishes. Scientists, too, have admired and marveled at nacre for decades, not only for its beauty and optical properties…