John Ternus has entered one of the most visible positions in global business without trying to turn his first days into a personal media event. The new CEO arrived with a remarkably discreet public profile, a newly opened social presence and decades of work completed mostly behind Apple’s products.

His X account, @johnternus, appeared publicly on September 1, the day he officially succeeded Tim Cook. Its biography contained only the company logo and his new title. The first post was even shorter: “hello.”

The simplicity felt consistent with an executive who has spent most of his career explaining materials, engineering decisions and manufacturing improvements rather than building a public personality. It also created a sharp contrast with the scale of the position he now occupies.

Ternus can remain personally reserved, but the CEO role will repeatedly place him before customers, employees, investors, governments and developers. His first social post may have been quiet. The responsibilities arriving behind it are anything but.

John Ternus Arrives Without a Personal Media Machine

Ternus did not maintain a prominent public social account during his years leading hardware engineering. Most customers encountered him through carefully produced product presentations, occasional interviews or appearances focused on a particular device.

Even within those settings, his style remained technical and controlled. He usually spoke about engineering choices, durability, materials, performance and the work required to turn a design into a product that could be manufactured at enormous scale.

His new X account does not immediately change that character. Opening a channel is different from revealing a private life or becoming a daily commentator. The minimal introduction suggests a place for official communication rather than an invitation into every passing thought.

That would follow an established pattern for senior leadership. Tim Cook used his public account to acknowledge product launches, employees, social causes, environmental initiatives, community visits and major events. His posts rarely became extended personal debates.

Ternus may adopt a similar rhythm, although the account is too new to define its purpose. One word and a short biography cannot tell us how frequently he will post, which subjects he will address or whether he will write directly during moments of controversy.

The restrained opening still served one practical purpose. It established an authenticated public identity before unofficial profiles, impersonators and parody accounts could occupy the space around a newly appointed CEO.

A Career Built Behind the Hardware

The limited public profile should not be mistaken for limited influence inside the company.

Ternus joined the product design team in 2001 and became a vice president of hardware engineering in 2013. He entered the executive team as senior vice president in 2021, eventually overseeing engineering work across iPhone, iPad, Mac, AirPods and Apple Watch.

His official biography credits him with an instrumental role in the introduction of iPad and AirPods, along with work across multiple generations of the company’s largest product lines. It also connects his leadership to improvements in reliability, durability, materials, repairability and environmental performance.

This background gives Ternus a different starting point from a CEO recruited principally through finance, sales, software or public policy. He arrives from the part of the organization responsible for making difficult designs function consistently outside a laboratory.

Hardware engineering at this scale reaches far beyond choosing a processor or shaping an enclosure. It requires coordinating displays, batteries, cameras, radios, thermal systems, structural materials, manufacturing equipment, repair procedures and supplier capacity. A small change can affect production across millions of units.

That experience may explain part of his measured communication style. Engineering organizations reward details that survive testing. Public attention often rewards immediate confidence. Ternus has spent his career in an environment where confidence eventually meets a drop test, production line or repair bench.

His public appearances have often carried the same discipline. He tends to explain what a product team accomplished without placing himself at the center of the accomplishment.

The CEO Role Changes the Audience

Leading hardware engineering allowed Ternus to speak after a product decision had passed through years of development. As CEO, he will also need to speak while difficult questions remain unresolved.

Investors will expect him to explain spending, growth and long-term priorities. Governments will want answers about manufacturing, competition, privacy and platform control. Employees will look for direction as artificial intelligence, robotics, home technology, augmented reality and satellite communications create new opportunities across the company.

Customers will judge him through products, but they will also hear his response when a launch disappoints, a service fails or a policy creates frustration.

This is where a discreet profile can become either an advantage or a limitation.

A CEO who does not comment constantly preserves the weight of the moments when he chooses to speak. Fewer posts also reduce the chance that a hurried reaction becomes the story instead of the company’s work.

Silence becomes harder to maintain when people expect reassurance. Product defects, security incidents, employee concerns and political disputes can create situations in which a carefully prepared statement feels too distant. Ternus will have to decide when restraint protects the company and when it begins to look like avoidance.

Cook will remain involved as executive chairman and is expected to assist with areas including engagement with policymakers. That arrangement gives Ternus continuity during the transition without removing the need to develop his own public authority.

The distinction between their roles will become more visible with time. Cook can offer experience and institutional relationships, but employees and customers need to recognize which priorities belong to the new CEO.

A More Technical Public Voice Could Work

Ternus does not need to imitate Steve Jobs’ stage presence or Cook’s diplomatic style. A convincing public identity can grow from the expertise that brought him to the position.

The most natural version would be an engineering-minded CEO who explains trade-offs without turning every decision into a slogan. Product design is full of compromises involving battery life, weight, cost, durability, repairability and production capacity. Carefully explaining some of those decisions could make corporate communication more informative.

His 2024 commencement appearance at Penn Engineering offered a rare view outside a product presentation. Ternus returned to the university where he earned his mechanical engineering degree and addressed students as an experienced engineer rather than a celebrity executive.

That type of setting allows more personality to appear without requiring constant social posting. Longer interviews, engineering discussions, employee conversations and educational appearances may suit him better than trying to manufacture spontaneity several times a day.

A restrained profile could also reinforce collaboration. The products reaching customers are built by large teams, and Ternus has generally presented himself as a representative of that work. Maintaining that tone as CEO would keep attention on the organization rather than turning every announcement into a personal performance.

The difficulty will be preserving technical depth while discussing areas beyond hardware. Services, entertainment, artificial intelligence, software platforms and international policy cannot always be explained through materials and manufacturing. The CEO must connect them into one recognizable direction.

His First Major Appearances Will Define the Account

The opening “hello” gives Ternus room to decide how visible he wants to become.

Upcoming product events will offer an early test. A social account can distribute announcements and photographs, but the stage will reveal more: which subjects he chooses to introduce, how much technical detail he includes and whether he remains present throughout the presentation or delegates most of it to other executives.

Earnings calls will create a different test. Product videos are rehearsed around finished work; financial discussions require direct answers about demand, margins, investment and risks. His language in those conversations will begin shaping how investors understand the new administration.

Internal communication may prove equally influential even when the public sees only fragments. Employees will listen for signals about decision-making speed, tolerance for experimentation and the relationship between engineering ambition and commercial discipline.

The X account can support that work, but it cannot substitute for it. A polished stream of product announcements would tell customers what has shipped. Occasional direct messages during difficult moments would reveal more about how Ternus intends to lead.

For now, the empty space around his first post is part of the story. The next useful signal may not be how often John Ternus speaks, but which moment persuades this notably private engineer that the CEO should speak in his own voice.

 

The post John Ternus Begins His Apple CEO Era With a Discreet Public Profile appeared first on AppleMagazine.

Since the 1850s, plowing and clear-cutting in modern agriculture have increased how fast soil erodes in the Upper Mississippi River Valley. Across the globe, farming strips soil up to 100 times faster than natural processes. It also removes farmable land and clogs waterways, threatening long-term environmental sustainability. However, scientists in the past have struggled to separate the effects of land-use changes from the transition out of the last ice age over the past 20,000 years. 

To determine whether current farming practices are sustainable, researchers from Minnesota recently measured the speed at which soil eroded during the ice age transition and compared it with modern agricultural erosion. They focused on the Trout Creek tributary of the Mississippi River. This tributary has 2 step-like formations, or terraces, on its bank that represent past floodplains before the river eroded to its current level. 

The oldest, upper terrace is about 14 meters (50 feet) above the lower terrace, which is about 8 meters (26 feet) above the modern floodplain. Scientists studying nearby areas have suggested that the terraces contain sediment from the last ice age, 20,000 years ago, referred to as the Last Glacial Maximum, to today. 

In the upper terrace, the researchers pushed an empty cylinder into the ground, like a straw into a layer cake, to collect a cylindrical sample of sediments about 4 centimeters (1.5 inches) wide and 6 meters (20 feet) deep, called a sediment core. They collected slices of this core from 2 meters (6 feet) and 6 meters (20 feet) to find the terrace’s age. 

Some grains in the sediment trap electrons while buried and release them when exposed to light. So the team shone light on the sediment slices to stimulate these electrons and measure the intensity of light emitted, known as their optically stimulated luminescence. Brighter light emissions indicate the sediment is older and was buried for a longer period of time. Using this method, they confirmed that the deep sediment slice was 22,000 years old, and the shallow sediment slice was 20,000 years old, dating the terrace back to the Last Glacial Maximum.

Next, the team drilled into the upper terrace with an auger to collect 25-centimeter (10-inch) wide plastic tubes of sediment. They pulled 4 samples from 0 to 2 meters (0 to 6 feet), and 1 sample from 6 meters (20 feet) deep. They explained that minerals in the sediment called quartz produce the radioactive form of the element beryllium, known as ¹⁰Be, when exposed to the Sun, so low ¹⁰Be means the sediment was buried quickly and had little sun exposure. The team measured the concentration of ¹⁰Be in each sediment sample and used an online calculator to estimate how quickly it eroded. The researchers calculated that during the Last Glacial Maximum, 0.073 millimeters (0.003 inches) of surface sediment were removed per year.

The researchers collected similar samples from the lower terrace and used optically stimulated luminescence to determine that it was between 22,000 and 14,000 years old. This terrace was the floodplain during the transition out of the Last Glacial Maximum, or deglacial period, where temperatures warmed and permafrost retreated. They measured the concentration of ¹⁰Be in samples from this terrace and determined that 0.049 millimeters (0.002 inches) of surface sediment were removed per year. 

Finally, the researchers measured ¹⁰Be in a sediment sample from the modern floodplain, deposited between 14,00 years ago and today. They found that the sediment had eroded 0.053 millimeters (0.002 inches) per year during that interval, at a rate slower than it had during the glacial period, but similar to the deglacial period. 

The researchers compared their findings to the average soil loss caused by modern agriculture, as reported by 4 previous scientists studying the area. They saw that modern farming removes an average of 0.60 millimeters (0.02 inches) of soil per year, which is 8 to 12 times greater than all the natural erosion rates they calculated. 

They concluded that the recent spike in soil loss from agriculture greatly exceeds that caused by the largest natural climate transition in recent Earth history. Human-driven erosion shows an upward “hockey stick” trend like the one seen in global temperatures, suggesting that similar trends could exist throughout Earth systems. The team concluded that modern agricultural practices aren’t currently sustainable. While measures like native plant reintroduction can help curb this trend, more research is required to determine how best to limit long-term erosion.

The post Is modern farming sustainable? appeared first on Sciworthy.

The MacVoices Live! panel examine Apple’s quarterly earnings, the continuing importance of Services revenue, and what John Ternus’ presence on Apple’s earnings call may indicate about Apple’s future leadership transition. Chuck Joiner, David Ginsburg, Eric Bolden, Brian Flanigan-Arthurs, Marty Jencius, and Jeff Gamet discuss the Apple Vision Pro and the newest wave of “Vision Pro is doomed” commentary. They argue that Vision Pro should be viewed as an early-stage platform product that still needs more time, more content, more developer support, and a larger installed base before its long-term value can be fairly judged. 

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Solar panels are overheating amid soaring temperatures, leading to gas power stations across the UK being ordered to fire up production to make up the shortfall.

The post Solar Panels Overheat as Gas Power Stations Ordered to Fire Up appeared first on The Daily Sceptic.

The Oxford Institute for Energy Studies is one of the world's most respected institutions in energy economics. But its ideological commitment to the 'climate emergency' is now damaging its research, says Dr Tilak Doshi.

The post The Oxford Institute Letting Climate Ideology Bias its Research appeared first on The Daily Sceptic.

In a groundbreaking new study published in Nature Communications, researchers Ampuero, Stríkis, Meckler, and colleagues have unveiled compelling evidence of rapid warming in South America during the last deglaciation, a period roughly spanning from 20,000 to 10,000 years ago. This revelation not only reshapes our understanding of ancient climate dynamics in the Southern Hemisphere but also provides critical insights relevant to modern climate change scenarios. The study harnesses a suite of advanced geochemical proxies and high-resolution sediment analyses to reconstruct past temperature variations with unprecedented precision, shedding light on the complex interplay of atmospheric and oceanic processes that drove rapid temperature shifts during this critical juncture in Earth’s climate history.

The last deglaciation marks the transition from the Last Glacial Maximum (LGM), characterized by extensive ice sheets and colder global temperatures, to the relatively warmer Holocene epoch. While the general timeline of global warming during this period has been well documented, the rate and regional variability of temperature changes in South America remained less clear. This research addresses that gap by focusing on paleoclimatic archives from the Andes and adjacent lowlands, areas particularly sensitive to past climate fluctuations due to their unique topography and atmospheric circulation patterns. The team’s integration of isotopic measurements, sediment core analyses, and climate modeling has allowed them to track rapid temperature increases occurring in discrete pulses rather than gradual trends.

One of the study’s central findings is that the warming episodes in South America during the deglaciation were not synchronous with the Northern Hemisphere, suggesting a nuanced asynchronous behavior in global climate systems. This asynchrony challenges prevailing assumptions derived from mid-latitude and polar records predominantly from the Northern Hemisphere. The evidence points to a scenario where atmospheric teleconnections, influenced by shifts in the Intertropical Convergence Zone (ITCZ), played a vital role in redistributing heat between hemispheres. Changes in the ITCZ’s position and intensity appear to have triggered alterations in monsoonal patterns and precipitation regimes across tropical and subtropical South America, thereby accelerating warming trends.

Delving deeper into the proxies used, the research team employed oxygen isotope ratios (δ18O) from speleothems and lacustrine carbonate deposits, alongside organic biomarkers preserved in lake sediments. These proxies are invaluable for reconstructing past temperature and hydrological conditions. Their fine temporal resolution enabled the team to detect rapid warming events occurring over mere decades to centuries, contrasting starkly with previously assumed millennial-scale trends. This high-resolution data challenges the paradigm that post-glacial warming was a slow and steady process, underscoring the climate system’s capacity for abrupt state shifts driven by complex feedback mechanisms.

The study posits that these rapid warming events are linked to deglacial reductions in ice volume combined with rising greenhouse gas concentrations, which collectively enhanced atmospheric temperatures. However, the mechanisms responsible for regional heterogeneity in warming intensity remain a frontier of research. The authors hypothesize that the interplay between the South Atlantic Ocean’s temperature gradients and the Andes’ orographic effects created microclimates that either amplified or moderated warming signals locally. These insights highlight the intricacies of Earth’s cryosphere-atmosphere interactions, emphasizing that regional response to global forcings can diverge dramatically.

Crucially, the study carries significant implications for understanding future climate trajectories. The past rapid warming episodes provide analogs for the rate and spatial distribution of modern anthropogenic warming, especially in mountainous and tropical regions. Given that South America supports critical biodiversity hotspots and large human populations dependent on glacial-fed water resources, these findings raise concerns about the vulnerability of such systems to contemporary climate disruptions. They also stress the importance of refining climate models to incorporate regional heterogeneities and abrupt transitions observed in past climates to improve future predictions.

The methodologies applied in this study exemplify advancements in paleoclimatology. High-precision radiometric dating techniques, including uranium-thorium series and radiocarbon calibrations, ensured robust chronological frameworks. Simultaneously, the use of compound-specific isotope analyses allowed disentanglement of temperature signals from confounding hydrological changes. By merging empirical data with state-of-the-art climate model simulations, the research provides a comprehensive narrative that integrates proxy evidence with theoretical climate dynamics, fostering an interdisciplinary understanding crucial for reconstructing past climates.

This investigation also revisits the role of Southern Hemisphere westerly winds during glacial terminations. These winds, known to influence oceanic upwelling and atmospheric moisture transport, appear to have shifted latitudinally and intensified during warming intervals, enhancing the carbon cycle feedback through increased ocean-atmosphere exchange. Such shifts would have profound implications for regional precipitation and temperature patterns, echoing the complex feedback loops that amplify climate variability. The interplay between atmospheric circulation changes and deglacial warming elucidated in this work refines our grasp of the mechanisms driving rapid climate shifts in South America.

The detailed record of warming patterns obtained from Andean ice cores and sediment cores also reveals that local climate responses were amplified by feedback mechanisms related to vegetation changes and soil moisture dynamics. As temperatures rose, altered precipitation regimes induced shifts in ecosystem composition and land surface properties, which in turn influenced regional albedo and evapotranspiration rates. These biophysical feedbacks likely intensified warming pulses, creating nonlinear climate responses that challenge the linear projections often found in simplified models. The study’s recognition of these processes underscores the need to consider feedback loops when analyzing both past and future climate events.

Furthermore, the research highlights the influence of meltwater pulses originating from retreating glaciers on ocean circulation patterns in the South Atlantic, which may have contributed to abrupt changes in the Atlantic Meridional Overturning Circulation (AMOC). These oceanic perturbations would have cascaded into atmospheric circulation anomalies, further modulating temperature regimes. The integration of paleohydrological and oceanographic data thus provides a multidimensional perspective on how coupled ocean-atmosphere-cryosphere systems orchestrated climate variability during the last deglaciation.

The findings provoke new questions about thresholds and tipping points in paleoclimatic systems. The demonstrated rapid warming episodes suggest that even small incremental increases in external forcings can trigger disproportionately large climate responses once feedbacks are engaged. Such insights are vital for modern climate science, particularly in understanding the potential for abrupt, nonlinear climate transitions under ongoing anthropogenic pressures. By decoding the clues encoded in South America’s geological record, the study enhances our ability to forecast and mitigate the risks associated with rapid climatic changes.

Notably, this work emphasizes the importance of cross-continental and hemispheric comparisons in paleoclimatic studies. By juxtaposing South American data with Northern Hemisphere and Antarctic records, the researchers have contextualized regional warming events within the broader global climate narrative. This comparative approach reveals asynchronous yet interconnected patterns of deglacial warming, challenging simplistic notions of uniform climate shifts and advocating for more intricate, region-specific assessments of past climate dynamics.

In conclusion, the study by Ampuero et al. represents a significant stride in reconstructing past climate change with regional fidelity and temporal precision. Their identification of rapid warming intervals during the last deglaciation in South America not only enriches the scientific understanding of glacial-interglacial transitions but also provides vital lessons for the present and future. The intricate linkages among atmospheric circulation, oceanic processes, and terrestrial feedbacks revealed by this study underscore the intricacy of Earth’s climate system and the urgency of addressing rapid environmental changes from a holistic perspective. Future research inspired by this work will undoubtedly deepen insights into the mechanisms of abrupt climate change and help refine predictive climate models essential for safeguarding vulnerable ecosystems and societies.

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Subject of Research: Paleoclimatic reconstruction of rapid warming events in South America during the last deglaciation.

Article Title: Rapid warming in South America during the last deglaciation.

Article References:
Ampuero, A., Stríkis, N.M., Meckler, A.N. et al. Rapid warming in South America during the last deglaciation. Nat Commun (2026). https://doi.org/10.1038/s41467-026-74093-x

Image Credits: AI Generated

With CO2 greening the planet, any possible harms are outweighed by the benefits of more trees and crops. And that's even before you subtract the monumental cost of Net Zero, says Matt Ridley.

The post Net Zero Can Never Be Worth it appeared first on The Daily Sceptic.

Deep inside a limestone cave in southern China, paleontologists have uncovered an assemblage of thirteen fossilized teeth belonging to Gigantopithecus blacki, the largest primate species ever known to have lived.

The post Fossils from Chinese Cave Fill Crucial Gap in History of Gigantopithecus blacki appeared first on Sci.News: Breaking Science News.

BANGKOK — More than 600 residents of Chiang Mai and Chiang Rai provinces embarked May 31 on a roughly 68-kilometer, six-day ‘peace walk’ to demand the Thai government take action on the river pollution crisis that has seen Thai rivers polluted with heavy metals. The ensemble of affected residents, civil society groups, monks and students marched from Tha Ton subdistrict in Chiang Mai to the city of Chiang Rai in northern Thailand, reaching their destination on June 5, World Environment Day. For more than a year, Thailand’s Pollution Control Department has reported dangerous levels of arsenic, mercury, cadmium and other heavy metals in rivers across northern Thailand, with mining operations across eastern Myanmar suspected to be responsible for the pollution. “We are walking because our rivers are slowly dying,” Pianporn Deetes, executive director of the Rivers and Rights Foundation, which helped to organize the peace walk, told Mongabay by phone. “Toxic contamination from unregulated mining upstream is already affecting water, fish, food, livelihoods, and public health. We do not want to wait until more people become sick. This is an emergency.” Pianporn said the walk (42 miles) was about taking collective action to share information, document impacts and build public pressure in a bid to force the government to address the issue, which Pianporn said has, so far, been lacking. “Monitoring has improved, but action has not matched the scale of the crisis,” she said. “We need urgent diplomatic engagement with neighboring countries, stronger health monitoring, transparency, and action to…This article was originally published on Mongabay