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Sweating to shivering: Study finds rapid swings in temperature have increased

Flips between warm temperatures to cold and vice versa have become quicker, more frequent and more intense in recent decades, a new study shows.

By Christina Kelso | The New York Times
| April 26, 2025, 8:00 a.m.

"A September heat wave switching into a snowstorm over one day in the Rocky Mountains. Winter snowfall suddenly melting and saturating fields of dormant crops, before refreezing and encasing them in damaging ice. Early spring warmth prompting plants to blossom followed by a cold snap that freezes and drops their petals.

"Rapid temperature change events like these have increased in frequency and intensity over recent decades, a new study found.

"The transition periods for these abrupt temperature shifts have also shortened, according to the study, published Tuesday in the journal Nature Communications.

"Because the quick changes in temperature give communities and ecosystems little chance to respond, they may pose greater challenges than heat waves or cold snaps alone, said #WeiZhang, an assistant professor of climate science at Utah State University and one of the lead authors of the study.

" 'The impact could really be cascading on a different level,' he said.

"The researchers warned these temperature flips could have damaging effects on people and natural #environments, including destruction of #crops, harm to #ecosystems and strains on #PowerInfrastructure. And #LowIncomeCountries, where there is less access to weather forecasting and infrastructure is less resilient, are more vulnerable.

"The researchers examined temperature data from 1961 to 2023 to identify global patterns in sudden weather shifts, where temperatures in an area either jumped from cold temperatures to warm or plunged from warm to cold within five days. They found that instances of these flips increased in more than 60% of regions they surveyed.

"The largest increases in frequency were observed in South America, West Europe, Africa, and South and Southeast Asia. Some areas, including the polar regions, showed different behavior and experienced fewer events.

"While the climate mechanisms driving changes to these temperature-flip events are not yet fully understood, Zhang said, there is a significant trend showing that these events are becoming more frequent, stronger and quicker in many areas of the globe."

Read more:
sltrib.com/news/nation-world/2

The Salt Lake Tribune · Sweating to shivering: Study finds rapid swings in temperature have increasedFlips between warm temperatures to cold and vice versa have become quicker, more frequent and more intense in recent decades, a new study shows.

Critical Minerals In Ores (CMiO) Database
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lnkd.in/gynRjUfn <-- shared USGS publication
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lnkd.in/gETca3DQ <-- shared link to open data database, web map services, etc
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portal.ga.gov.au/persona/cmmi <-- shared web map
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lnkd.in/gdmMp2zg <-- shared editorial piece on critical minerals and geopolitics
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#geology #fedscience #opendata #CMMI #CMiO #criticalminerals #minerals #ores #database #opendata #GIS #spatial #mapping #spatialanalysis #commodities #technology #components #geochemistry #deposits #mining #extraction #classifaction #nomenclature #environments #structuralgeology #exploration
@USGS | @GeoscienceAustralia | @GeologicalSurveyOfCanada

#Algeria: #Biodiversity in Algeria: breathtaking #natural #parks
Algeria is located at the junction of two vast #geographical regions: the #Mediterranean region and the #Sahara. The division of the relief into large, roughly east-west oriented strips accentuates the contrasts between the various #natural #environments that succeed each other from north to south.

In the south, the Sahara presents a great diversity, ranging from vast, uniform expanses of rocky plateaus (hamadas du Draa) to depressions dotted with dunes (Grand Erg occidental, Grand Erg oriental), as well as imposing mountain massifs in the far south, notably the Hoggar, which peaks at around 3,000 meters.

In the north, in the #Maghreb region, two mountain ranges with marked relief surround the High Plateaus, where a few isolated mountains (djebels) stand above vast depressions, often occupied by saltwater lakes (sebkhas). The Tell region consists of small coastal or sub-coastal plains (such as the Mitidja) alternating with relatively low mountain massifs, but with steep slopes, mixing elements of old massifs (such as the Grande Kabylie) and fragments of folded, fractured, and uplifted sedimentary layers repeatedly during the Tertiary era.

Further south from the High Plateaus, on the edge of the Sahara, a second mountain range, the Saharan Atlas, features more regular folds in a rock mainly composed of limestone and marls.

A pleasantly temperate climate

The coastal regions benefit from a Mediterranean climate, with mild winters (around 12 °C in Algiers) and bearable summers (around 25 °C in the same city). Humidity is high and precipitation relatively abundant, with an average of 762 mm per year concentrated in a few months in autumn and spring. It rains more in Algiers than in Paris.

In summer, the weather is dominated by the influx of Saharan high pressure systems towards the north. However, from autumn to spring, the weather deteriorates due to the movement southwards in the Mediterranean of the temperate air flow or the arrival of polar air masses at higher altitudes, resulting in unsettled and rainy weather conditions in Algeria, with a drop in temperatures. These conditions naturally vary depending on altitude and geographical location.

Belezma National Park
English africalinks24.com/algeria-biod
French translated.turbopages.org/prox
#Algerie #afrique #nature

Africa Links 24 · Algeria: Biodiversity in Algeria: breathtaking natural parksBy Africa links 24

Study confirms #GulfStream warming, shifting toward #MaineCoast

December 19, 2023

"The latest research finds the Gulf Stream has warmed faster than the global ocean over the past two decades, and has shifted toward the #AtlanticCoast.

"Scientists say the ocean current, which carries tropical water up the #EasternSeaboard, has warmed two degrees Fahrenheit since 2001 and could be pushing warmer water into the #GulfOfMaine.

"Robert Todd, an associate scientist with the Woods Hole Oceanographic Institution, said years of data collection confirm what climate models predicted.

"'Long-term ocean observing really is important,' said Todd, 'and we need to keep making those observations so we can understand what’s actually happening in the climate system.'

"Todd said #OceanTemperatures are steadily rising as a result of human activities. He said the findings could determine how changes in the Gulf Stream will impact Maine’s coastal industries.

"The Woods Hole study relied on more than 25,000 ocean temperature and salinity observations collected through the Argo Program — an array of some 4,000 floating robots throughout the global ocean.

"In addition, underwater gliders have slowly navigated the Gulf Stream — revealing warm rings of water, which Todd says could enter the Gulf of Maine and alter marine #environments and species.

"'You can imagine if you have an organism that likes cold water, and suddenly the water is a whole lot warmer because this ring was there,' said Todd, 'those organisms might not be there anymore or might suffer — and then, the fisheries associated with that would suffer.'

"The Gulf of Maine — which stretches from #CapeCod in #Massachusetts to #NovaScotia, #Canada — is already considered one of the fastest-warming ocean regions on the planet.

"Todd said the data collected is shared in real time with scientists around the world."

mainebeacon.com/study-confirms

Maine Beacon - A project of the Maine People's Alliance · Study confirms Gulf Stream warming, shifting toward Maine coast - Maine BeaconThe latest research finds the Gulf Stream has warmed faster than the global ocean over the past two decades, and has shifted toward the Atlantic coast. Scientists say the ocean current, which carries tropical water up the Eastern Seaboard, has warmed two degrees Fahrenheit since 2001 and could be pushing warmer water into the Gulf of Maine.
Continued thread

[insert meme] "It's #humans".

"We've driven 20,000 years' worth of #ClimateChange in...170 years.

"...the chances of our #species existing are...so small, [we must] realize how lucky we are."

"...the #Earth [is] one body...#climates and #environments...are connected...how fragile that #ecosytem is."

These videos prove our existence is so improbable as to be a miracle.

We need to behave accordingly, or die

#AncientEarth: Humans

#link: pbs.org/video/ancient-earth-hu

#link: youtu.be/37Uip8DQqDM?si=qp9o68

PBS.orgNOVA | Ancient Earth: Humans | Season 50 | Episode 15 | PBSHow did Earth give rise to humans? See what made our species' existence possible.

Registration Open! HECAA@30: #Environments, Materials, and Futures in #C18
networks.h-net.org/node/7842/d

"On the land of the Massachusett & neighboring Wampanoag & Nipmuc peoples, #Boston developed in the eighteenth century as a major colonized and colonizing site. Its status today as a cultural & intellectual hub is shaped by that context...For whom is 'C18 #art & #architecture' a useful category? What C18 materials, spaces, and images offer tools or concepts for shaping our collective futures?"

networks.h-net.orgRegistration Open! HECAA@30: Environments, Materials, and Futures in the Eighteenth Century | H-Material-Culture | H-Net

#Insects have a lot of #anatomical and #physiological features that make them very well-adapted to #terrestrial #environments. And some of them live in extremely #dry situations.

#Flour #beetles can go their entire lives without #drinking? How do they do this? Part of the puzzle is that they "drink" through their #rectum.

Explainer 🔗: cbc.ca/radio/asithappens/beetl

#entomology #evolution

#OA 🔗: pnas.org/doi/full/10.1073/pnas

#Introduction #twitterMigration

Hello! I am an academic researcher based at University College London #UCL.

My research is at the intersection of #BehaviouralScience #HealthPsychology and #PublicHealth, with a particular interest in #EvidenceSynthesis and #SystematicReviews.

In more specific terms, much of my work focuses on developing and evaluating #interventions that alter aspects of physical #environments that shape human #behaviour - Follow the links on my profile for more details