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‘People Are So Proud of This’: How River and Lake Water Is Cooling Buildings

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‘People Are So Proud of This’: How River and Lake Water Is Cooling Buildings


“In the old days, it was more like a luxury project,” says Deo de Klerk, team lead for heating and cooling solutions at the Dutch energy firm Eneco. Today, his company’s clients increasingly ask for district cooling as well as district heating systems. Eneco has 33 heating and cooling projects under construction. In Rotterdam, Netherlands, one of the company’s installations helps to cool buildings, including apartment blocks, police offices, a theater and restaurants, using water from the River Meuse.

It’s not hard to see why cooling technologies are getting more popular. A few years ago, Nayral moved out of Paris. She remembers the heat waves. “My routine during the weekend was to go to the parks,” she says. Nayral would sit there well into the evening—reading Les Misérables, no less—waiting for her apartment to cool down. Recently, she has increasingly found herself spending time in shopping malls, where air-conditioning is plentiful, in order to make it through searing hot French summers. This year, unprecedented heat waves hit France and other countries in Europe.

The city of Paris is now desperate to help its denizens find cool refuges during spells of extreme heat. A key component of Parisian climate adaptation plans is the river-supplied cooling network, the pipes for which currently cover a distance of 100 kilometers, though this is due to expand to 245 km by 2042. While around 800 buildings are served by the network today, those in charge aim to supply 3,000 buildings by that future date.

Systems such as Paris’ do not pump river water around properties. Rather, a loop of pipework brings river water into facilities where it soaks up warmth from a separate, closed loop of water that connects to buildings. That heat transfer is possible thanks to devices called heat exchangers. When cooled water in the separate loop later arrives at buildings, more heat exchangers allow it to cool down fluid in pipes that feed air-conditioning devices in individual rooms. Essentially, heat from, say, a packed conference room or tourist-filled art gallery is gradually transferred—pipe by pipe—to a river or lake.

The efficiency of Paris’ system varies throughout the year, but even at the height of summer, when the Seine is warm, the coefficient of performance (COP)—how many kilowatt-hours of cooling energy you get for every kilowatt-hour of electricity consumed by the system—does not dip much below 4. In the winter, when offices, museums, and hospitals still require some air-conditioning, the COP can be as high as 15, much higher than conventional air-conditioning systems. “It is absolutely magnificent,” boasts Nayral.

But those summer temperatures are increasingly a concern. This summer, the Seine briefly exceeded 27 degrees Celsius (81 degrees Fahrenheit), says Nayral. How can that cool anything? The answer is chiller devices, which help to provide additional cooling for the water that circulates around buildings. Instead of blowing out hot air, those devices can expel their heat into the Seine via the river loop. The opportunity to keep doing this is narrowing, though—because Fraîcheur de Paris is not allowed to return water to the Seine at temperatures above 30 degrees Celsius, for environmental reasons. At present, that means the river can accommodate only a few additional degrees of heat on the hottest days. Future, stronger heat waves could evaporate more of that overhead.



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What the US$55 billion Electronic Arts takeover means for video game workers and the industry

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What the US billion Electronic Arts takeover means for video game workers and the industry


Credit: Pixabay/CC0 Public Domain

Electronic Arts (EA) is one of the world’s largest gaming companies. It has agreed to be acquired for US$55 billion in the second largest buyout in the industry’s history.

Under the terms, Saudi Arabia’s sovereign wealth fund (a state-owned investment fund), along with private equity firms Silver Lake and Affinity Partners, will pay EA shareholders US$210 per share.

EA is known for making popular gaming titles such as Madden NFL, The Sims and Mass Effect. The deal, US$20 billion of which is debt-financed, will take the company private.

The acquisition reinforces consolidation trends across the creative sector, mirroring similar deals in music, film and television. Creative and cultural industries have a “tendency for bigness,” and this is certainly a big deal.

It marks a continuation of large game companies being consumed by even larger players, such as Microsoft’s acquisition of Activision/Blizzard in 2023.

Bad news for workers

There is growing consensus that this acquisition is likely to be bad news for game workers, who have already seen tens of thousands of layoffs in recent years.

This leveraged buyout will result in restructuring at EA-owned studios. It adds massive debt that will need servicing. That will likely mean canceled titles, closed studios and lost jobs.

In their book “Private Equity at Work: When Wall Street Manages Main Street,” researchers Eileen Appelbaum and Rosemary Batt point to the “moral hazard” created when equity partners saddle portfolio companies with debt but carry little direct financial risk themselves.

The Saudi Public Investment Fund (PIF) is looking to increase its holdings in lucrative sectors of the game industry as part of its diversification strategy. However, private equity firms subscribe to a “buy to sell” model, focusing on making significant returns in the short term.

Appelbaum notes that restructuring opportunities are more limited when larger, successful companies—like EA—are acquired. In such cases, she says, “financial engineering is more common,” often resulting in “layoffs or downsizing to increase cash flow and service debt.”

Financial engineering combines techniques from applied mathematics, computer science and economic theory to create new and complex financial tools. The failed risk management of these tools has been implicated in financial scandals and market crashes.

Financialization and the fissured workplace

The financialization of the game industry is a problem. Financialization refers to a set of changes in corporate ownership and governance—including the deregulation of financial markets—that have increased the influence of financial companies and investors.

It has produced economies where a considerable share of profits comes from financial transactions rather than the production and provision of goods and services.

It creates what American management professor David Weil calls a “fissured workplace” where ownership models are multi-layered and complex.

It gives financial players an influential seat at the corporate decision-making table and directs managerial attention toward investment returns while transferring the risks of failure to the portfolio company.

As a result, game titles, jobs and studios can be easily shed when financial companies restructure to increase dividends, leaving workers with little access to these financial players as accountable employers.

Chasing incentives and cutting costs

The Saudi PIF has stated a goal of creating 1.8 million “direct and indirect jobs” to stimulate the Saudi economy. But capital is mobile, and game companies will likely follow jurisdictions that have lower wages, fewer labor protections and significant tax incentives.

Some Canadian governments are working to keep studios and creative jobs closer to home. British Columbia recently increased its interactive media tax credit to 25%.

The move was welcomed by the chief operations officer of EA Vancouver, who said “B.C.”s continued commitment to the interactive digital media sector…through enhancements to the … tax credit … reflects the province’s recognition of the industry’s value and enables companies like ours to continue contributing to B.C.”s creative and innovative economy.”

This may buffer Vancouver’s flagship EA Sports studio, but those making less lucrative games or in regions without financial subsidies will be more at risk of closure, relocation or sale. Alberta-based Bioware—developer of games including Dragon Age and Mass Effect—could be at risk.

Other ways of aggressively cutting costs might come in the form of increased AI use. EA was called out in 2023 for saying AI regulation could negatively impact its business. Yet creative stagnation and cutting corners through AI will negatively impact the number of jobs, the quality of jobs and the quality of games. That could be a larger threat to EA’s business and reinforce a negative direction for the industry.

Game players have low tolerance for quality shifts and predatory monetization strategies. Research shows that gamers see acquisitions negatively: development takes longer, innovation is curtailed and creativity is stymied.

Consolidation among industry giants may cause players to lose faith in EA’s product—and games in general, given the many other entertainment options that are available.

Creative control and worker power at risk

Some have raised concerns that the acquisition could affect EA’s creative direction and editorial decisions, potentially leading to increased content restrictions.

While it’s still unclear how the deal will influence EA’s output, experiences in other industries might be a sign of things to come. For instance, comedians reportedly censored themselves to perform in Saudi Arabia.

The acquisition may also have a chilling effect on the workers’ unionization movement. Currently, no EA studios in Canada are unionized. Outsourced quality assurance workers at the EA-owned BioWare Studio in Edmonton successfully certified a union in 2022, but were subsequently laid off. Fears of outsourcing, layoffs and restructuring could discourage future organizing efforts.

On the other hand, the knowledge that large financial players are making massive profits could galvanize workers, especially considering that before the buyout, EA CEO Andrew Wilson was paid about 264 times the salary of the median EA employee.

The deal certainly does nothing to bring stability to an already volatile industry. Regardless of any cash injection, EA remains very exposed.

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An Amazon outage has rattled the internet. A computer scientist explains why the ‘cloud’ needs to change

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An Amazon outage has rattled the internet. A computer scientist explains why the ‘cloud’ needs to change


Credit: Jonathan Borba from Pexels

The world’s largest cloud computing platform, Amazon Web Services (AWS), has experienced a major outage that has impacted thousands of organizations, including banks, financial software platforms such as Xero, and social media platforms such as Snapchat.

The outage began at roughly 6pm AEDT on Monday. It was caused by a malfunction at one of AWS’ data centers located in Northern Virginia in the United States. AWS says it has fixed the underlying issue but some are still reporting service disruptions.

This incident highlights the vulnerabilities of relying so much on —or “the cloud” as it’s often called. But there are ways to mitigate some of the risks.

Renting IT infrastructure

Cloud computing is the on-demand delivery of diverse IT resources such as computing power, database storage, and applications over the internet. In simple terms, it’s renting (not owning) your own IT infrastructure.

Cloud computing came into prevalence with the dot com boom in the late 1990s, wherein digital tech companies started to deliver software over the internet. As companies such as Amazon matured in their own ability to offer what’s known as “software as a service” over the web, they started to offer others the ability to rent their virtual servers for a cost as well.

This was a lucrative value proposition. Cloud computing enables a pay-as-you-go model similar to a utility bill, rather than the huge upfront investment required to purchase, operate and manage your own data center.

As a result, the latest statistics suggest more than 94% of all enterprises use cloud-based services in some form.

A market dominated by three companies

The global cloud market is dominated by three companies. AWS holds the largest share (roughly 30%). It’s followed by Microsoft Azure (about 20%) and Google Cloud Platform (about 13%).

All three service providers have had recent outages, significantly impacting digital service platforms. For example, in 2024, an issue with third-party software severely impacted Microsoft Azure, causing extensive operational failures for businesses globally.

Google Cloud Platform also experienced a major outage this year due to an internal misconfiguration.

Profound risks

The heavy reliance of the global internet on just a few major providers—AWS, Azure, and Google Cloud—creates profound risks for both businesses and everyday users.

First, this concentration forms a single point of failure. As seen in the latest AWS event, a simple configuration error in one central system can trigger a domino effect that instantly paralyzes vast segments of the internet.

Second, these providers often impose vendor lock-in. Companies find it prohibitively difficult and expensive to switch platforms due to complex data architectures and excessively high fees charged for moving large volumes of data out of the cloud (data egress costs). This effectively traps customers, leaving them hostage to a single vendor’s terms.

Finally, the dominance of US-based cloud service providers introduces geopolitical and regulatory risks. Data stored in these massive systems is subject to US laws and government demands, which can complicate compliance with international data sovereignty regulations such as Australia’s Privacy Act.

Furthermore, these companies hold the power to censor or restrict access to services, giving them control over how firms operate.

The current best practice to mitigate these risks is to adopt a multi-cloud approach that enables you to decentralize. This involves running critical applications across multiple vendors to eliminate the single point of failure.

This approach can be complemented by what’s known as ““, wherein data storage and processing is moved away from large, central data centers, toward smaller, distributed nodes (such as local servers) that firms can control directly.

The combination of edge computing and a multi-cloud approach enhances resilience, improves speed, and helps companies meet strict data regulatory requirements while avoiding dependence on any single entity.

As the old saying goes, don’t put all of your eggs in one basket.

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An Amazon outage has rattled the internet. A computer scientist explains why the ‘cloud’ needs to change (2025, October 21)
retrieved 21 October 2025
from https://techxplore.com/news/2025-10-amazon-outage-rattled-internet-scientist.html

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Sperm From Older Men Have More Genetic Mutations

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Sperm From Older Men Have More Genetic Mutations


Human semen not only accumulates genetic mutations with age; as the percentage of sperm carrying potentially serious mutations increases, so does the risk of developing diseases in offspring.

This is according to a new study by researchers at the Sanger Institute and King’s College London. The team sequenced semen samples from individuals between the ages of 24 and 75, using very high-precision technologies, and found that the male germ line (the line of cells that produce sperm) is subject to a combination of mutation and positive selection.

The scientists used a duplex sequencing technique called NanoSeq, which can detect rare mutations with a very low margin of error. This allowed them to analyze 81 sperm samples from 57 donors. The results showed that a man’s sperm adds an average of 1.67 new mutations every year.

But the most striking aspect of the study is not limited to the mere accumulation of mutations with age. The authors discovered that the male germ line is subject to positive selection. That is, certain mutations offer an advantage to cells that produce sperm and expand. They identified that many of these mutations are in genes related to developmental disorders or a predisposition to childhood cancer.

“We expected to find evidence that selection influences mutations in sperm,” said Matthew Neville, coauthor of the study published this month in the journal Nature. “What surprised us was how much the number of sperm carrying mutations associated with serious diseases increases.”

What Does This Mean for Children of Older Fathers?

The researchers estimated that about 3 to 5 percent of sperm from middle-aged and older men carry some potentially pathogenic mutation in the exome (the coding part of the genome). That represents a higher risk than previous estimates. In more concrete numbers, the estimated fraction for men in their thirties was close to 2 percent, while it reached about 4.5 percent for men in their seventies.

From the evolutionary and clinical perspective, the implications are significant. Evolutionarily, it shows that the male germ line is not simply a “machine” that accumulates errors: There is a dynamic process of mutation and selection that can modify the genetic “quality” of the sperm with the age of the father.

On the clinical side, however, it raises questions about reproductive planning, genetic counseling, and the additional risks associated with an older father. The authors argue that although the percentages remain modest, the the accumulation is not only linear but also has a selection component that favors mutations with the potential to spread.



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