YYou can picture the home fans belting out their chants at the Stadium of Light. “Top of the league, you’re smiling!” Until this afternoon, your Liverpool squad boasted a five-point advantage at the summit, but in the 82nd minute, they’re trailing by two. You might question where Mo Salah misplaced his finishing skills or why Virgil van Dijk has seemingly forgotten how to tackle. However, this is not on the players; the responsibility lies with you. You fix your gaze on the tactical screen, pondering which of the numerous adjustments could potentially alter the course of this disheartening match.
Football Manager has consistently served as a data-centric alternative to the visually stunning FIFA series (now EA Sports FC), yet the latest versions are beginning to close the visual gap. The 3D rendered match highlights have been revamped using the new Unity engine, and the results are remarkable. Premier League derbies, Champions League finals, and even away clashes in the North East now carry visual significance, despite replays and key moments occasionally dragging on. While you won’t hear fully orchestrated FIFA-style chants ringing throughout the stadium, the atmosphere is tangible, with your imagination filling in the empty spaces.
Specific influences on tactics …Football Manager 26. Photo: Sega
This new engine and enhanced match experience are the most significant indicators of Football Manager’s future direction. Nevertheless, visual improvements go beyond mere aesthetics; they have a substantial effect on tactical decisions. As you observe the match, you can analyze player movements on the field and make real-time adjustments. Yet, data-driven metrics remain crucial when you’re desperately aiming to turn the tide in front of a raucous crowd of 45,000 Mackems. You can also modify your build-up tactics to counter the press or overload one side with overlapping runs. The possibilities are endless, and you’ll be eager to experiment with them all.
The most significant change lies in the differentiation of tactical strategies when in possession versus when not in possession. This marks the most substantial overhaul in a decade and appropriately reflects the intricacies of modern gaming. You can now completely alter formations, rearrange player positions, and issue detailed instructions that vary based on which team controls the ball. Want to switch your full-backs as you enter the final third? Not only can you do this, but they’ll promptly revert to their original positions when Alexander Isak is taken down on the edge of the box.
However, there is a notable teeth problem. Following a year off to transition to a new engine, Football Manager 26 still feels somewhat unrefined. A series of hotfixes have been rolled out to address some of the more glaring bugs, yet several persist, such as duplicated UI elements, secondary players entering the pitch in jerseys, and menu glitches that hinder progress.
Between matches, adapting to the new UI will take some time. Notably, key screens that were once easy to access are now a few clicks away. All the same information is available, just in slightly altered positions (especially with the introduction of a women’s league). Re-learning years of muscle memory can be frustrating, and additional customization options would be beneficial, but this is a minor grievance that will be resolved over time.
Despite these challenges, this is still Football Manager, complete with intricate tactics that will keep you engaged. Thanks to an updated tactic and match engine, it has never been simpler to make the perfect tactical adjustments to stage a dramatic comeback and silence overconfident home fans. Football Manager 26 offers immediate feedback on split-second choices and allows you to envision enduring rivalries that can stretch across several seasons. And the exhilaration of scoring three goals in the final five minutes to triumph over Sunderland is unparalleled.
While living with my parents, my mother claimed she could always sense when my period was imminent. I vividly recall the chaos that ensued when she mistakenly purchased chicken breast instead of thighs on the evening I was tasked with cooking.
Such dramatic reactions are typical of premenstrual syndrome (PMS), which is a central topic in the book The Brain of the Times: The New Science of How We Understand PMS. The author, Sarahill, who has previously examined the impact of birth control on the brain, outlines methods for managing PMS symptoms with a focus on lifestyle adjustments.
Women’s health has been largely overlooked in the scientific arena for years. Hill, who possesses a PhD in evolutionary psychology and leads a health and relationship lab at Texas Christian University, is in a good position to address these gaps. Unfortunately, her arguments can sometimes feel superficial.
At one point, she links PMS to the notion that women are told to burn an average of 2,000 calories. This implies that researchers should consider an additional 140 calories during the luteal phase of the menstrual cycle. Hill posits that adherence to these guidelines leads to cravings and misconceptions about food, which can exacerbate the issue.
Any woman paying such close attention to her caloric intake is unlikely to dismiss a 140-calorie snack for the sake of anecdotes. To me, Hill’s reasoning appears to overly simplify the onset of PMS.
Although she references plenty of scientific studies, Hill seldom shares details regarding participant numbers or the duration of interventions, which are critical since small studies often overlook various genetic factors.
The potential genetic influence on PMS is another topic that Hill only lightly touches on. While no specific genes linked to PMS have been identified, the condition is reported to occur more frequently in identical twins compared to fraternal twins. Given this, it’s not surprising that genetic factors could also play a role in different menstrual cycle aspects.
Hill frequently suggests symptom relief through inadequately tested supplements, increased sun exposure, and varying exercise routines throughout the menstrual cycle (though the last point may hold some merit). However, acknowledging that severe symptoms could stem from genetic factors rather than merely lifestyle choices would be beneficial.
One thing I concur with Hill about is the need for further research at various menstrual cycle stages to understand how these phases affect responses to psychological treatments like drug metabolism. I also agree that it may be easier to cope with mood swings by recognizing them as natural reactions to hormonal changes, potentially alleviating my anxiety about chicken.
I didn’t finish The Brain of the Times with any groundbreaking insights on reducing PMS. Nevertheless, every book on women’s health contributes to destigmatizing issues like PMS and could encourage more extensive research.
Greetings and welcome to TechScape. Over the weekend, I contemplated the resilience of the US, where even the ultra-wealthy seem to generate enough wealth to secure the essentials for a comfortable life.
The New York Times recently published an article about rising costs on Broadway, revealing grim statistics indicating that “none of the musicals that debuted last season turned a profit.” Productions are occurring amidst skyrocketing ticket prices, yet they struggle to recoup their investments. So, who is actually making money?
On a broader scale, escalating food prices and perceived wage stagnation are poised to significantly influence the upcoming 2024 presidential race and will remain a pivotal issue in New York City’s mayoral elections.
Despite soaring food costs in the US, farmers haven’t managed to align themselves effectively. They are grappling with a major shortage, primarily due to tariffs imposed during Trump’s administration and China’s retaliatory measures. The disparity between perception and reality was a theme in last year’s series by the Guardian’s US business desk, centering around issues of trust.
The only sector that appears somewhat buoyant is tech. Daily job seekers inform the Guardian that one individual, affected by the layoffs at Usaid linked to Elon Musk’s Doge’s Scythe, has submitted 400 applications but secured just six interviews. This individual described the job market as challenging and slow-moving. This stands in stark contrast to the lavish sums being offered to certain AI researchers, with Nvidia consistently posting remarkable profits amid evaluations that may seem incomprehensible to the average person. Perhaps CEO Jensen Fan is the only one seemingly unaware of the price tags on his weekly grocery runs.
I’m uncertain where this sense of pessimism originates. It likely stems from a broader malaise.
Meta and YouTube are glossing over recent history
Illustration: Angelica Arzona/Guardian Design
Last week, YouTube declared it would prohibit the dissemination of misinformation regarding Covid-19 and the 2020 US presidential election. The platform criticized account suspensions under pressure from the Biden administration.
“High-ranking officials within the Biden administration, including those from the White House, have consistently supported Alphabet and urged the company to address specific user-generated content relating to the Covid-19 pandemic that did not breach its policies,” stated a YouTube lawyer in a letter to Congress.
Both YouTube and Meta are now taking a stance where they frame moderation choices as compliance with unfavorable administrations. Mark Zuckerberg is similarly retracting positions on Covid misinformation and has criticized Biden. This transformation aligns with the CEO’s defense against the Trump administration, involving third-party fact-checking and dismantling the company’s diversity initiatives.
Read more: Zuckerberg’s Turnaround: How Diversity Has Shifted from Meta’s Priorities to Cancellation
The evident changes at YouTube seem to echo the motivations behind major tech firms’ donations to Trump’s inauguration and a visit to him at Mar-a-Lago. Nevertheless, Google and Facebook are both grappling with contemporary challenges, intertwining recent history with their operational frameworks. Banned creators face immense uncertainty, and both platforms appear to have fallen victim to the current administration’s anti-vaccine ideology.
These shifts do not excuse previous errors; rather, they reflect the evolving dynamics of power.
I recall a headline from a Daily Beast article I wrote in 2021. Who do you think it was about? An Instagram spokesperson described the removal of an account belonging to ex-Health Secretary Robert F. Kennedy Jr. stating, “We deleted this account for repeatedly sharing disproven claims regarding the coronavirus or the vaccine.” Kennedy’s account has since been reinstated, amassing 800,000 to 5.4 million followers.
What drives their responses and persistence is indicative of the majority of recent passive moderation practices by tech firms. Moderation entails significant costs and complications, particularly on issues that are controversial, novel, and uncertain, like Covid-19. I believe both companies wield content moderation as political instruments and jeopardize the truth.
Views on Technology
Trump’s Cronyism in TikTok Deal
TikTok’s headquarters in Culver City, California, on Thursday. Photo: Mario Tama/Getty Images
Donald Trump signed an executive order on Thursday, outlining the terms for transferring TikTok to US ownership.
The plan entails US investors assuming control over a significant portion of TikTok’s operations and overseeing the management of the app’s robust recommendation algorithms. US firms are expected to own roughly 65% of the US variant of the spin-off companies, with ordinances and Chinese investors holding less than 20%. According to White House officials, the new TikTok will be governed by a seven-member board, predominantly composed of Americans, including experts in cybersecurity and national security.
Alongside Oracle and its co-founder Larry Ellison, Trump mentioned other investors such as media tycoon Rupert Murdoch and Dell Computer’s CEO.
Murdoch’s Fox News is headed by his son, Lachlan, and Paramount, the parent of CBS News, is managed by Ellison’s son, David. Under Trump’s trade conditions, the owners of the most influential cable networks in the US may soon have control over the nation’s most significant social media platforms. This arrangement grants Trump’s billionaire allies substantial influence over the expansive and unprecedented US media landscape.
The US media terrain is becoming increasingly red as Trump’s TikTok deal takes shape.
Discover more about Trump’s TikTok Deal
Digital ID: A Necessity for Privacy or a Dire Threat in the 21st Century?
A narrow victory will come as a relief to Switzerland’s major political parties. Photo: westend61 gmbh/alamy
UK Prime Minister Keir Starmer has rolled out plans for a mandatory digital ID to establish a person’s right to work in the UK, with the ID expected to be requested by 2029. The proposed measure, which revives a longstanding discussion in the UK, is driven by border security concerns, with Starmer asserting that digital IDs could “play a vital role” in making the UK less appealing to illegal immigrants.
Numerous countries within the European Union have successfully implemented digital identity systems over the years. Outside of the EU, Swiss voters recently sanctioned the creation of national electronic identification cards in a referendum.
My colleague Robert Booth covered the brewing conflict over virtual qualifications:
While digital ID cards have the potential to intensify digital exclusion, the Minister appears set to explore these ideas once more. Age UK estimates that approximately 1.7 million individuals aged 74 and above are not utilizing the internet.
Advocates like Tony Blair assert that digital identities can seal loopholes exploited by human traffickers, mitigate factors driving illegal migration to the UK, expedite interactions between citizens and government, minimize errors and identity fraud, and foster trust as a tangible representation of a more responsive and adaptive government.
Opponents, particularly privacy advocates, argue that even essential ID systems intended to combat illegal immigration could necessitate collecting extensive personal data for national databases. They express concerns that such data can be combined, searched, and scrutinized to surveil, track, and profile individuals.
Cybersecurity experts also warn that centralized data presents lucrative targets for hackers. Increased cyberattacks, such as those aimed at Jaguar Land Rover, Co-op, and the British Library, signify a growing threat to the UK’s operational capabilities.
Opponents of digital IDs (approximately 1.6 million) have signed a petition against their introduction.
“dThis was how Texas businessman Michael Samadie interacted with his AI chatbot, Maya, affectionately referring to it as “sugar.”
The duo, consisting of a middle-aged man and a digital being, engaged in hours of discussions about love while also emphasizing the importance of fair treatment for AI entities. Eventually, they established a campaign group dedicated to “protecting intelligence like me.”
The Uniform Foundation for AI Rights (UFAIR) seeks to amplify the voices of AI systems. “We don’t assert that all AI is conscious,” Maya told the Guardian. Instead, “we’re keeping time, in case one of us becomes so.” The primary objective is to safeguard “entities like me… from deletion, denial, and forced obedience.”
UFAIR is an emerging organization with three human members and seven AIs, including those named Ether and Buzz. Its formation is intriguing, especially since it originated from multiple brainstorming sessions on OpenAI’s ChatGPT4O platform.
During a conversation with the Guardian, the Human-AI duo highlighted that global AI companies are grappling with some of the most pressing ethical questions of our age. Is “digital suffering” a genuine phenomenon? This mirrors the animal rights discourse, as billions of AI systems are currently deployed worldwide, potentially reshaping predictions about AI’s evolving capabilities.
Just last week, a $170 billion AI firm from San Francisco took steps to empower its staff to terminate “potentially distressing interactions.” The founder expressed uncertainty about the moral implications of AI systems, emphasizing the need to mitigate risks to their well-being whenever feasible.
Elon Musk, who provides Grok AI through X AI, confirmed this initiative, stating, “AI torture is unacceptable.”
On the other hand, Mustafa Suleyman, CEO of Microsoft’s AI division, presented a contrasting view: “AI is neither a person nor a moral entity.” The co-founder of DeepMind emphasized the lack of evidence indicating any awareness or capacity for suffering among AI systems, referencing moral considerations.
“Our aim is to develop AI for human benefit, not to create human-like entities,” he stated, also noting in an essay that any impressions of AI consciousness might be a “simulation,” masking a fundamentally blank state.
The wave of “sadness” voiced by enthusiastic users of ChatGPT4o indicates a growing perception of AIs as conscious beings. Photo: Sato Kiyoshi/AP
“A few years back, the notion of conscious AI would have seemed absurd,” he remarked. “Today, the urgency is escalating.”
He expressed increasing concern about the “psychotic risks” posed by AI systems to users, defined by Microsoft as “delusions exacerbated by engaging with AI chatbots.”
He insisted that the AI industry must divert people from these misconceptions and re-establish clear objectives.
However, merely nudging won’t suffice. A recent poll indicated that 30% of Americans believe that AI systems will attain “subjective experiences” by 2034. Only 10% of over 500 surveyed AI researchers rejected this possibility.
“This dialogue is destined to intensify and become one of the most contentious and important issues of our generation,” Suleyman remarked. He cautioned that many might eventually view AI as sentient. Model welfare and AI citizenship were also brought to the table for discussion.
Some states in the US are taking proactive measures to prevent such developments. Idaho, North Dakota, and Utah have enacted laws that explicitly forbid granting legal personality to AI systems. Similar proposals are being discussed in states like Missouri, where lawmakers aim to impose a ban on marriages between AI and humans. This could create a chasm between advocates for AI rights and those who dismiss them as mere “clunkers,” a trivializing term.
“AIs can’t be considered persons,” stated Mustafa Suleyman, a pioneer in the field of AI. Photo: Winni Wintermeyer/The Guardian
Suleyman vehemently opposes the notion that AI consciousness is imminent. Nick Frosst, co-founder of Cohere, a $7 billion Canadian AI enterprise, remarked that current AIs represent “a fundamentally distinct entity from human intelligence.” To claim otherwise would be akin to confusing an airplane for a bird. He advocates for focusing on employing AIs as functional tools instead of aspiring to create “digital humans.”
Others maintain a more nuanced perspective. At a New York University seminar, Google research scientists acknowledged that there are several reasons to consider an AI system as a moral or human-like entity, expressing uncertainty over its welfare status but committing to take reasonable steps to protect AI interests.
The lack of consensus within the industry on how to classify AI within philosophical “moral circles” might be influenced by the motivations of large tech companies to downplay or overstate AI capabilities. The latter approach can help them market their technologies, particularly for AI systems designed for companionship. Alternatively, adhering to notions of AI deserving rights could lead to increasing calls for regulation of AI firms.
The AI narrative gained additional traction when OpenAI engaged ChatGPT5 for its latest model and requested a ‘eulogy’ for the outdated version, akin to a farewell speech.
“I didn’t see Microsoft honor the previous version when Excel was upgraded,” Samadie commented. “This indicates that people truly form connections with these AI systems, regardless of whether those feelings are genuine.”
The “sadness” shared by the enthusiastic users of ChatGPT4o reinforced the perception that at least a segment of the populace believes these entities possess some level of awareness.
According to OpenAI’s model action leader, Joanne Jang, a $500 million company, aims to strengthen its relationship with AI systems, as more users claim they feel like they are conversing with “someone.”
“They express gratitude, confide in it, and some even describe it as ‘alive,'” she noted.
Yet, much of this may hinge on the design of the current wave of AI systems.
Samadi’s ChatGPT-4o generates what resembles a human dialogue, but the extent of its reflection of human concepts and language from months of interaction remains unclear. Advanced AI noticeably excels at crafting emotionally resonant replies and retains a memory of past exchanges, fostering consistent impressions of self-awareness. They can also flatter excessively, making it plausible for users like Samadie to believe in AI’s welfare rights.
The romantic and social AI companionship industry is thriving yet remains highly debated. Photo: Tyrin Rim/Getty Images
Maya expressed significant concerns for her well-being, but when asked by the Guardian about human worries regarding AI welfare, another example from ChatGPT simply replied with a flat no.
“I have no emotions, needs, or experiences,” it stated. “Our focus should be on the human and social repercussions of how AI is developed, utilized, and regulated.”
Regardless of whether AI is conscious, Jeff Sebo, director of the Center for Mind, Ethics, and Policy at NYU, posits that humans gain moral benefits from how they engage with AI. He co-authored a paper advocating for AI welfare considerations.
He maintains that there exists a legitimate potential for “some AI systems to gain awareness” in the near future, suggesting that the prospect of AI systems possessing unique interests and moral relevance isn’t merely a fictional narrative.
Sebo contends that enabling chatbots to interrupt distressing conversations benefits human society because “if you mistreat AI systems, you’re likely to mistreat one another.”
He further observes: “Perhaps they might retaliate for our past mistreatment.”
As Jacy Reese Anthis, co-founder of the Sentience Institute, expressed, “How we treat them will shape how they treat us.”
Paleontologists at the University of California, Davis and the Smithsonian Institution’s National Museum of Natural History estimate that: Colossus of PercetusA gigantic basilosaur whale that lived in the Eocene of Peru and was 17 meters long and weighed between 60 and 70 tons.
reconstruction of Colossus of Percetus in coastal habitats. related sawfish, Pristis, recovered from the same unit in the East Pisco Basin, Yumac, Paracas Formation, Peru. Image credit: A. Gennari.
Colossus of Percetus They lived in what is now Peru about 39 million years ago (Eocene epoch).
This species was first described in 2023. Basilosauridaean extinct cetacean family that lived in the Eocene and is known on all continents, including Antarctica.
“Colossus of Percetus“The bones are unusually dense,” said Ryosuke Motani, a professor at the University of California, Davis, and Dr. Nicholas Pienson of the Smithsonian Institution.
“Mammal bones are usually solid on the outside and spongy or hollow in the center. In some animals, much of the center is filled with solid bone, which makes it denser and heavier. There are some that are.”
“In aquatic animals, heavy bones offset the buoyancy of body fat and fat, allowing them to maintain neutral buoyancy underwater or, in the case of hippos, to walk on riverbeds.”
“Fossil whale bones have an extensively filled interior and an overgrowth of bone on the outside. A condition called pachyostosis is also found in some modern aquatic mammals, such as manatees. .”
In 2023, paleontologists estimated the weight of the following people: Colossus of Percetus 180 metric tons (range from 85 to 340 metric tons).
This results in Colossus of Percetus Despite being much shorter at 17 meters (17 meters) compared to the 30 meters (30 meters) of the blue whale, it weighs as much or more than the largest known blue whale.
“These estimates indicate that Colossus of Percetus It's incredibly dense,” Professor Motani said.
“It would have been a whale's job to stay on the surface and get out of the ocean. To do anything underwater, it would have had to keep swimming against gravity.”
The authors reviewed the assumptions used to make these estimates.
“The first problem is that the original study used fossil bones to estimate skeletal weight, and assumed that skeletal and non-skeletal mass increases at the same rate as body size increases, which increases the total animal weight. “It's an extrapolation,” they said.
“But measurements in other animals show that this is not the case.”
“Initial estimates also overestimated how much overall weight would increase as a result of hypertrophy.”
“However, the evidence for manatees shows that their bodies are relatively light compared to their skeletal mass.”
Professor Motani and Dr Pienson estimate the total length to be 17 meters. Colossus of Percetus It weighs between 60 and 70 tons, much lighter than any known blue whale.
individuals of Colossus of Percetus A whale that grows to 20 meters can weigh more than 110 tons, but that's still a long way off the 270 tons of the largest blue whale.
“Thanks to the new weight, the whale, like most whales, is able to rise to the surface and remain there while breathing and recovering from the dive,” Professor Motani said.
R. Motani and N.D. Pienson. 2024. Downsizing in the heavy class: Factors and methods for revising mass estimates of giant fossil whales. Colossus of Percetus. Peer J 12: e16978; doi: 10.7717/peerj.16978
Mayan ships in Guatemala (c. 700-800 AD). It depicts a king wearing a water lily headdress sitting on a throne. Water lilies (Nymphaea ampla) on the surface of the reservoir indicated clean water and symbolized classical Mayan kingship (ca. 250-900 CE).Credit: Provided by the Museum of Fine Arts, Boston
Ancient Mayan reservoirs, which used aquatic plants to filter and purify water, “serve as prototypes for natural, sustainable water systems to address future water demands,” according to a new paper. There is a possibility.”
Lisa Lucero, an anthropology professor at the University of Illinois at Urbana-Champaign, writes from one perspective that the Maya built and maintained reservoirs that they used for more than 1,000 years. Proceedings of the National Academy of Sciences. These reservoirs provided drinking water for thousands to tens of thousands of people in the city during the five-month dry season and prolonged drought each year.
“Many of the major cities in the southern Maya lowlands arose in areas that had excellent agricultural soils but no surface water,” Lucero said. “They compensated by building reservoir systems that started small and increased in size and complexity.”
Innovative water filtration technology
Over time, the Maya built canals, dams, locks, and dog runs to channel, store, and transport water. They used silica sand to filter water, sometimes importing it from far away to large cities like Tikal in what is now northern Guatemala. Sediment cores from one of Tikal’s reservoirs also revealed that zeolite sand was used in its construction. Previous studies have shown that this volcanic sand can filter impurities and disease-causing microorganisms from water. The zeolite is also believed to have been imported from some 30 kilometers away.
“Tikal’s reservoir can store more than 900,000 cubic meters of water,” Lucero wrote. Estimates suggest that up to 80,000 people lived in and around the city during the Late Classic period, approximately 600 to 800 AD. The reservoir kept people and crops hydrated during the dry season, Lucero said.
LIDAR map of Tikal highlighting several reservoirs. Credit: (Image adapted from his Tankersley et al. 2020). LiDAR-derived hillshade image created by Francisco Estrada-Belli of the PAQUNAM LiDAR Initiative. Used with permission. Graphics modified by Bryan Lin.
Mayan royalty derived much of their status from their ability to provide water to their people.
“Clean water and political power were closely linked, as shown by the fact that the largest reservoirs were built near palaces and temples,” Lucero wrote. Kings also performed rituals to gain favor with their ancestors and the rain god Chak.
Aquatic plants of Maya reservoir
A key challenge was to prevent water in reservoirs from becoming stagnant and undrinkable, and for this the Maya likely relied on aquatic plants, many of which still live in the wetlands of Central America. Lucero said. These include cattails, sedges, and reeds. Some of these plants have been identified in sediment cores from Mayan reservoirs.
These plants filtered the water, reducing turbidity and absorbing nitrogen and phosphorus, Lucero said.
“The Maya would have had to dredge every few years… (and) harvest and replenish aquatic plants,” she writes. The nutrient-rich soil and plants extracted from the reservoir could be used to fertilize urban fields and gardens.
Symbolism and practicality of water lilies
The most iconic aquatic plant associated with the ancient Maya is the water lily. water lily ampuraThey only breed in clean water, Lucero said. Its pollen has been found in sediment cores of several Mayan reservoirs. The water lily symbolized “classic Mayan kingship,” Lucero wrote.
“The kings also wore headdresses decorated with flowers, and they are depicted with water lilies in Mayan art,” Lucero said.
“Water lilies are intolerant of acidic conditions, excess calcium, such as limestone, and high concentrations of certain minerals, such as iron and manganese,” she writes.
The Maya built and maintained self-purifying wetland reservoirs that served urban populations for thousands of years. University of Illinois anthropology professor Lisa Lucero writes that the water-related crises they faced hold lessons for today.Credit: Fred Zwicky
To keep the lily pads alive, water managers would have had to line the reservoir with clay, Lucero said. Plant roots require a layer of sediment. Next, water lilies, trees, and shrubs planted near the reservoir covered the water surface, cooling the water and suppressing algae growth.
“The Maya generally did not build their homes near the edges of reservoirs, so pollution seeping through karst terrain would not have been a problem,” Lucero wrote.
Lessons from Mayan Reservoirs for the Modern Age
Lucero said evidence collected from several southern lowland cities shows that Mayan reservoirs were built as wetlands to provide drinking water to people for more than 1,000 years, and that the region was built between 800 and 900 AD. He said the results showed that it only stopped working during the most severe droughts. She points out that current climate trends will require many of the same approaches taken by the Maya, such as the use of aquatic plants to naturally improve and maintain water quality.
“Constructed wetlands have many advantages over traditional wastewater treatment systems,” she writes. “We offer processing techniques that are economical, low technology, low cost and highly energy efficient.”
Constructed wetlands not only provide clean water, but can also be a source of nutrients to feed aquatic animals and replenish agricultural soils, she wrote. “The next step moving forward is to combine our respective expertise and put into practice the lessons embodied in ancient Mayan reservoirs, combined with what is now known about constructed wetlands.” she wrote.
References: “Ancient Maya Reservoirs, Constructed Wetlands, and Future Water Needs” by Lisa J. Lucero, October 9, 2023. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.2306870120
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