Tag Archives: disruption

Potential Ocean Current Disruption Indicated by Changes in the Gulf Stream

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The Gulf Stream current transports warm water from the Gulf of Mexico to the east coast of the United States.

NASA’s Scientific Visualization Studio/Scientific Photo Library

The ongoing northward shift of the Gulf Stream indicates a concerning trend: the weakening of the ocean current system crucial for keeping Europe warm. Recent models suggest that unexpected changes in the Gulf Stream may signal an imminent catastrophic collapse of this vital current.

The Atlantic Meridional Circulation (AMOC) is a flow of warm, salty surface water originating in the tropics, moving towards northwest Europe, where it cools, sinks, and returns south along the ocean floor. Specifically, the Gulf Stream is the component that travels from the Gulf of Mexico up the East Coast of the United States, redirecting eastward into the Atlantic Ocean.

As the Greenland ice sheet continues to melt, it releases fresh water into the North Atlantic. This dilution is expected to hinder AMOC’s strength, as the less salty water affects the sinking and southern flow of this essential current. While some studies indicate this phenomenon is already in effect, clear evidence remains elusive.

Recent research led by René van Westen and Henk Dykstra, both affiliated with Utrecht University in the Netherlands, reveals that the weakening of AMOC is altering the Gulf Stream’s path, causing it to shift further north along the U.S. coastline before veering back into the Atlantic Ocean.

The findings demonstrate that the Gulf Stream has already shifted approximately 50 kilometers north over the past 30 years, as indicated by satellite data.

“This shift is measurable,” Van Westen stated. “As a result, it is very likely indicative of AMOC’s weakening.”

Historical reconstructions that estimate the AMOC discharge based on ocean temperatures indicate a 15 percent reduction since 1950. However, monitoring of actual ocean flows began only in 2004, insufficient to determine if the observed changes are natural variations or accelerating trends.

“We’re exploring alternative methods, such as analyzing the Gulf Stream’s pathway,” Van Westen remarked.

The study employs a model with 10-kilometer resolution, rather than the standard 100-kilometer resolution, facilitating the examination of the bulge responsible for the significant volume of water transported by the Gulf Stream.

The trajectory of this bulge varies as one of AMOC’s tributaries, the Deep Western Boundary Current, transports cold saline water southward along the ocean floor. Typically, this current flows below the Gulf Stream, exerting a pull that moves the Gulf Stream southward. However, as AMOC weakens, the Deep Western Boundary Current diminishes as well, leading to a gradual northward shift of the Gulf Stream.

In simulation scenarios extending 392 years into the future, the Gulf Stream is projected to leap more than 200 kilometers northward in a mere two years, followed by the collapse of AMOC two and a half decades later. Previous studies indicate that such a collapse could lead to severe climate consequences, such as a -20°C (-4°F) cold wave in London and an extreme -48°C (-54°F) temperature in Oslo, Norway.

This modeling represents an idealized scenario and does not predict that AMOC will collapse in 400 years. Nevertheless, it does highlight that a rapid shift in the Gulf Stream could serve as an early warning for an impending AMOC closure—a unique early indicator available to us. By that point, it may be too late to averting AMOC collapse, but proactive measures, such as enhancing home insulation and exploring agricultural areas further south, could be taken by Europe.

“We now possess effective early warning indicators that can be quantified,” Van Westen asserts. “This is straightforward to measure.”

Nonetheless, the timeline for AMOC’s potential collapse following Gulf Stream changes remains uncertain. Predictions for AMOC closure vary significantly, ranging from decades to centuries.

Dan Seidoff, a retired oceanographer with the National Oceanic and Atmospheric Administration, cautioned that fresh water from Greenland could impact AMOC at a rate and location different from model predictions.

“Critical questions remain about when, how, and why AMOC changes might occur,” he explained. “If changes follow the model’s predictions, it could serve as a precursor indicating Gulf Stream shifts and issue warning signals.”

While the correlation between abrupt changes and AMOC collapse must be validated by additional models, this study strengthens the case that AMOC is indeed experiencing a slowdown, according to Stefan Rahmstorf of the University of Potsdam, Germany.

“The slowdown seems to be happening at a pace faster than predicted in global warming scenarios,” he noted. “Current climate models may not adequately capture the urgency of this issue, potentially altering estimations regarding when the AMOC tipping point will occur.”

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Source: www.newscientist.com

Experts Cite Mask’s “Doge” Involvement as a Key Disruption in Branding | Elon Musk

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Scott Galloway, a prominent marketing professor in the US, described Elon Musk’s strategy of implementing severe work and spending reductions within the federal government on behalf of the Trump administration as “one of the greatest brand disruptions ever.”

During a recent episode of the popular Pivot Podcast, he mentioned that he argued that Trump’s billionaire business advisor alienated the customer base of Tesla, one of his key ventures, while partnering with a president uninterested in the types of vehicles his allies produce.

Galloway also pointed out a vote indicating that Tesla fell to No. 95 in 2021 from its previous position as the eighth most reputable brand.

“He alienates the wrong audience,” Galloway commented. “Three-quarters of Republicans will never consider purchasing an EV. He seems comfortable associating with people who aren’t interested in electric vehicles.”

He also cited statistics showing that Tesla’s sales reached 59% in France, 81% in Sweden, 74% in the Netherlands, 66% in Denmark, 50% in Switzerland, and 33% in Portugal.

Over the past few months, Musk has attempted to intervene in various political matters across Europe, including the German federal elections and the UK’s discussions regarding grooming gangs.

A report from Jato Dynamics, a provider of automotive industry insights, noted that Tesla’s Chinese rival, which is based in Austin, gained traction in the lucrative European EV market after previous competitors faced challenges.

“This was certainly one of the largest brand disruptions,” Galloway told his co-host, veteran tech journalist Kara Swisher. “Tesla was an outstanding brand.”

“He alienates his key demographics.”

The reductions in federal government operations and budget linked to Musk stemmed from his role in leading the Office of Government Efficiency (DOGE) during Trump’s second term, which commenced in January. Musk secured this position after his Super Political Action Committee contributed $200 million to Trump’s successful bid to reclaim the White House following his 2020 election loss.

Since then, opinion surveys have indicated significant disapproval of Musk’s efforts for Trump, revealing that many voters were dissatisfied with the approach taken by the businessman and DOGE towards federal employees.

By late April, Tesla had reported a 71% drop in profits. In a revenue call with Tesla investors, Musk announced he would step back from his role in DOGE in May.

Musk described his responsibilities as “primarily managing the financial aspects of order” in the government, predicting “a considerable decrease in time dedicated to DOGE.”

A nonpartisan research organization, Public Service Partnership, estimated that the $160 billion cuts credited to DOGE would ultimately amount to around $135 billion.

Source: www.theguardian.com

China’s renewable energy boom at risk of disruption from extreme weather

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The three Gorge dams in China are the main sources of hydroelectric power generation

costfoto/nurphoto/shutterstock

China’s vast electric grids cause more fuss than any other country with renewable energy, but the system is also vulnerable to electricity shortages caused by adverse weather conditions. The need to ensure reliable power supply could encourage Chinese governments to use more coal-fired power plants.

China’s energy systems are rapidly becoming cleaner, setting new records for wind power and solar energy generation almost every month. The country’s overall greenhouse gas emissions – the highest emissions in the world are expected to peak soon and begin to decline. Wind, solar and hydroelectric power currently account for about half of China’s generation capacity, and is expected to increase to almost 90% by 2060, when the country promised to reach “carbon neutrality.”

This increasingly reliance on renewables means that the country’s electricity system is becoming increasingly vulnerable to changes in weather. Intermittent winds and sun can be replenished by more stable hydropower produced by huge hydroelectric dams enriched in southern China. But what happens when the wind and sun slump coincides with drought?

Jinjiang Shen Darian Institute of Technology in China and his colleagues modeled how power generation on increasingly renewable grids corresponds to these “extreme weather” years. They estimated how future mixing of wind, solar and hydropower behaves under the most favourable weather conditions seen in the past.

They found that future grids are much more sensitive to weather changes than they are today. In a very unfavourable year, 2060, it could reduce the amount of generation capacity by 12% compared to today’s grid, leading to a power shortage. In 2030, in the most extreme cases, they found that this leads to over 400 hours of blackout times, a power shortage of nearly 4% of total energy demand. “That’s not a number that everyone can ignore.” Li Shuo At the Institute of Policy Studies in Asia Association, Washington, DC.

In addition to the overall lack of force, drought could specifically limit the amount of hydroelectric power available to smooth out irregular winds and solar generation. This could also lead to a shortage of electricity. “It is essential to equip a suitable proportion of stable power sources that are less susceptible to weather factors to avoid large-scale, large-scale power shortages,” the researchers wrote in their paper.

One way to help is to run excess electricity more efficiently across states. By expanding the transmission infrastructure, researchers found that it could eliminate the risk of power shortages on today’s grids and reduce half of the risk by 2060. Adding new energy storage in tens of millions of kilowatts, whether using batteries or other methods, would also be alleviated against hydroelectric droughts.

According to Li Shuo, any additional storage amounts China needs to be added to achieve carbon neutrality “becomes an astronomical number.”

These changes are difficult, but they add that many storage is viable given the enormous amount of batteries already produced in China. Lauri Myllyvirta At the Finland Energy and Clean Air Research Centre. He says the country is also building 190 gigawatts of pumped hydropower storage. This says that it can provide long-term energy storage by using surplus electricity to pump water over the dam and releasing it when more electricity is needed.

But so far, the electricity shortage has primarily spurred the Chinese government to build more coal-fired power plants. For example, in 2021 and 2022, hydroelectric droughts and heat waves increased enough electricity demand to cause serious power outages; Continuous expansion of coal. Record hydropower generation in 2023 resulted in record time for emissions.

Chinese President Xi Jinping said coal would peak this year, but he has entrenched political support for power sources. “If China is struggling with another round of these episodes, more coal-fired power plants shouldn’t be the answer,” says Li Shuo. “It’s difficult to abolish coal. China loves coal.”

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Source: www.newscientist.com

Microsoft raises concerns about China’s potential disruption of US, South Korea, and India elections using AI technology

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Following a dry run of Taiwan’s presidential election this year, China is anticipated to disrupt elections in the United States, South Korea, and India with artificial intelligence-generated content, as warned by Microsoft.

The tech giant predicts that Chinese state-backed cyber groups will target high-profile elections in 2024, with North Korea also getting involved, according to a report released by the company’s threat intelligence team.

“As voters in India, South Korea, and the United States participate in elections, Chinese cyber and influence actors, along with North Korean cyber attack groups, are expected to influence these elections,” Microsoft mentioned.



Microsoft stated that China will create and distribute AI-generated content through social media to benefit positions in high-profile elections.

Although the immediate impact of AI-generated content seems low in swaying audiences, China is increasingly experimenting with enhancing memes, videos, and audio, potentially being effective in the future.

During Taiwan’s presidential election in January, China attempted an AI-powered disinformation campaign for the first time to influence a foreign election, Microsoft reported.

The Beijing-backed group Storm 1376, also known as Spamoflage or Dragonbridge, heavily influenced Taiwan’s elections with AI-generated content spreading false information about candidates.

Chinese groups are also engaged in influencing operations in the United States, with Chinese government-backed actors using social media to probe divisive issues among American voters.

In a blog post, Microsoft stated, “This may be to collect intelligence and obtain accurate information on key voting demographics ahead of the US presidential election.”

The report coincides with a White House board’s announcement of a Chinese cyber operator infiltrating US officials’ email accounts due to errors made by Microsoft, as well as accusations of Chinese-backed hackers conducting cyberattacks targeting various entities in the US and UK.

Source: www.theguardian.com

AT&T customers across the U.S. experience major cell phone service disruption

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Early Thursday morning, cell phone outages affected cities across the United States, causing thousands of AT&T customers to experience service interruptions. These interruptions prevented them from sending text messages, accessing the Internet, making phone calls, and even calling 911.


Around 7 a.m. ET, more than 50,000 incidents were reported, and that number exceeded 70,000 by 9 a.m. ET. However, by 11 a.m. ET, reports of service failures had decreased to 60,000.

AT&T spokesperson Jim Greer stated, “Some customers are experiencing wireless service interruptions this morning. We are working urgently to restore service. He recommends using Wi-Fi calling until service is restored. I recommend it.”

AT&T, the largest U.S. mobile phone service provider with 240 million subscribers, did not offer a possible explanation for the outage. The company also did not provide a timeline for when full service would be restored. Despite intermittent outages in recent days, Thursday’s outage was much larger.

The most affected cities, according to the website, included San Francisco, Houston, Atlanta, and Chicago.

Users of other carriers such as Verizon, T-Mobile, Cricket, and UScellular also reported outages, but those were much smaller compared to AT&T. Verizon and T-Mobile confirmed that the outage did not affect their own customers, except when trying to contact customers of other carriers.

T-Mobile stated, “No outages occurred,” while Verizon’s statement said, “Verizon’s network is operating normally.”

The San Francisco Fire Department and the City of Chicago’s Office of Emergency Management and Communications were actively addressing the issues affecting AT&T Wireless customers.

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Atlanta Mayor Andre Dickens confirmed that calls with the city’s emergency services continued to work. However, Massachusetts State Police advised against using phone services and dialing 911 due to a flooding of concerned callers testing the service.

The police department stated, “Many 911 centers across the state are inundated with calls from people trying to see if 911 works from their cell phone. Do not do this. Call another number via your cell phone service. If you can make a non-emergency call, 911 service will also work.”

Source: www.theguardian.com