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The Government's Massive Emissions RevisionThe UK government has dramatically revised upward its estimates of carbon emissions from AI datacentres, now projecting up to 123 million tonnes of CO₂ over the next decade—more than 100 times previous figures. This revelation raises serious questions about the government's climate commitments and its push for AI-driven economic growth.The Scale of AI's Environmental FootprintAccording to new data quietly published this week, energy use by AI datacentres in the UK could cause the emission of up to 123m tonnes of carbon dioxide (CO₂) – about as much as generated by 2.7 million people – over the next 10 years. That latest figure replaces a previous estimate – since deleted – that claimed emissions would reach a maximum of 0.142m tonnes of CO₂ in a single year.The latest estimates were revealed in a revision to the UK "compute roadmap", which sets out the government's plan "to build a world-class compute ecosystem" for delivering artificial intelligence in the UK – a goal on which the government has staked its hopes for economic growth.The Carbon Impact NumbersAccording to the Department for Science, Innovation and Technology's (DSIT) latest estimates, the carbon impact of the planned AI buildout could range from 34m to 123m tonnes of CO₂ – about 0.9% to 3.4% of the UK's projected total emissions between 2025 and 2035. The lower range of the estimate would depend on greater efficiency in AI models and hardware, and faster decarbonisation of the UK's energy grid.AI datacentres require huge amounts of electricity to operate – much more than the datacentres used to store online data – and most of that continues to be generated by fossil fuels.Climate Concerns and Government ResponseThere is increasing alarm at the carbon impact of AI and with calls to reduce global emissions to mitigate the climate emergency becoming increasingly urgent. Patrick Galey, the head of investigations for the Global Witness climate campaign, said: "We have a handful of years until our carbon budget is exhausted. To waste what little bandwidth we have left – when 750 million people worldwide lack access to electricity – assisting some of the richest men ever to hone their plagiarism bots would be a historic idiocy that future generations are unlikely to forgive today's leaders for."Foxglove's head of strategy, Tim Squirrell, added: "The government has a legally binding commitment to reach net zero by 2050. This already sat awkwardly alongside its hell-for-leather embrace of a hyperscale AI datacentre buildout, which unchecked could double the electricity consumption of the entire country. The situation has now been revealed to be much, much worse, given the fact the government doesn't seem to have done even the most basic arithmetic needed to measure the potential new carbon emissions of these datacentres."Officials from the DSIT appear to have made the revision after an investigation by Foxglove, an independent watchdog, and the Carbon Brief news site said they appeared to be a significant underestimate. The government declined to comment on the record.Future of AI and Climate PolicyThe dramatic revision of emissions estimates comes as the UK government continues to push for AI adoption, with recent announcements including a £500m fund investment. This creates a significant tension between the government's economic ambitions for AI and its climate commitments, particularly as the UK aims to reach net zero emissions by 2050.As the true environmental cost of AI becomes clearer, policymakers will face increasing pressure to balance technological advancement with sustainability concerns. The path forward may require more efficient AI models, accelerated renewable energy adoption, or potentially scaling back some aspects of the planned AI buildout to meet climate targets.

The National Cyber Security Centre (NCSC) has officially stopped recommending passwords where passkeys are available, urging consumers to adopt the newer, phishing‑resistant technology for all digital services. NCSC Declares Passwords Obsolete in Favor of Passkeys In a statement released this week, the NCSC said passwords can no longer withstand today’s cyber‑threat landscape. Passkeys, described as a “digital stamp” stored on a user’s device, provide a password‑free login that leverages biometrics such as facial recognition or a device PIN. Adoption Rates and Breach Statistics Google reports that just over 50% of its UK users have a passkey registered. Research by Cybernews highlighted the exposure of billions of login credentials in recent data‑leaks, underscoring the fragility of password‑based systems. Common passwords like “123456”, “admin”, and “password” remain among the most used globally, according to Nordpass. Why Passkeys Could Redefine UK Digital Security Passkeys cannot be harvested through phishing attacks because the private component never leaves the user’s device. Even if a service is breached, the stolen data is useless without the corresponding device‑held private key. Experts such as Dave Chismon, senior tech expert at the NCSC, note that passkeys are faster and simpler for users than remembering complex passwords or navigating two‑factor authentication. Future Outlook: Widespread Passkey Adoption and Remaining Challenges Analysts expect rapid growth in passkey usage as more platforms integrate the standard and as public awareness rises. However, challenges remain, including the need for robust biometric safeguards and user education on protecting device PINs. Alan Woodward, professor of cybersecurity at Surrey University, points out that facial‑recognition technology now incorporates “proof of liveness” to thwart spoofing attempts, but the security ecosystem will continue to evolve in a cat‑and‑mouse dynamic. Key recommendations for users: Enable passkeys wherever offered; fall back to strong, unique passwords only when necessary. Activate two‑factor authentication on accounts that still rely on passwords. Keep device software and apps up to date to benefit from the latest security patches. Maintain strict control over device PINs and biometric data.

Executive Summary of the Leadership ChangeApple confirmed that Tim Cook will step down as chief executive in September, with hardware chief John Ternus slated to succeed him. The move marks the end of Cook’s decade‑long tenure and introduces a new era for the company’s strategic direction.John Ternus Takes the Helm of Apple’s Core BusinessTim Cook will transition out of the CEO role after steering Apple through multiple product cycles.John Ternus, currently senior vice president of hardware engineering, will assume the CEO position.The handover is scheduled for September 2026, giving the board time to manage the transition.Financial and Deal Context Highlighted in TechCrunch’s Equity PodcastThe Equity podcast, hosted by Kirsten Korosec, Anthony Ha, and Sean O’Kane, discussed the leadership shift alongside major market moves.Among the deals mentioned was SpaceX’s $60B option on Cursor, underscoring the scale of concurrent tech transactions.Strategic Pressures Facing Apple’s Platform ModelThe App Store’s traditional 30% commission is under increasing regulatory and competitive scrutiny.Developers are gaining more leverage, challenging Apple’s historic control over distribution and pricing.Emerging “vibe‑coded” applications are redefining how software is built and monetized on Apple’s ecosystem.Potential Trajectory for Apple Under New LeadershipJohn Ternus inherits a highly durable business but must navigate a shifting regulatory landscape.Maintaining developer goodwill while preserving revenue streams will be a central focus.How Apple adapts to new app development paradigms could influence its market valuation and innovation pipeline.

StrictlyVC SF Announces Uber CTO Praveen Naga as Key SpeakerStrictlyVC San Francisco, the flagship event series for TechCrunch, has expanded its roster for the April 30 gathering at the Sentro Filipino Cultural Center. The headline addition is Uber CTO Praveen Neppalli Naga, who will sit down with TechCrunch editor‑in‑chief Connie Loizos to explore the challenges of scaling services amid the AI revolution.Event Logistics and Speaker LineupDate: 2026-04-30Venue: Sentro Filipino Cultural Center, San FranciscoCore audience: founders, investors, AI developersSpeakers (5 total): Praveen Neppalli Naga (Uber), Lior Susan (Eclipse), Amjad Masad (Replit), Nicolas Sauvage (TDK Ventures), Campbell Brown (former CNN/Meta)Financial Highlights and Scale Metrics$1.3 billion fund recently raised by Eclipse founder Lior Susan for physical‑AI startupsUber’s platform serves hundreds of millions of riders, drivers, and couriers worldwide, providing a real‑world testbed for AI‑driven scalingTicket demand is expected to exceed capacity, prompting a “act swiftly” call‑to‑actionStrategic Implications for AI‑Driven PlatformsThe conversation will likely surface how large‑scale mobility networks can embed generative AI into dispatch, pricing, and earnings systems—areas where Naga has deep experience since joining Uber in 2015. Insights could influence how other platform companies prioritize AI investments, especially in driver‑earnings algorithms and real‑time logistics.Looking Ahead: What This Signals for the Startup EcosystemBy gathering AI pioneers, venture leaders, and media strategists, StrictlyVC positions itself as a nexus for the next wave of AI‑focused funding and product development. Attendees can expect actionable takeaways on capital‑raising tactics from Nicolas Sauvage and on combating AI‑driven disinformation from Campbell Brown, setting the tone for a more mature, responsible AI startup landscape in 2026 and beyond.

The Rise of Pet Wearable TechnologyAs humans increasingly monitor their own health through wearable devices tracking steps, heart rate, and sleep patterns, a parallel market has emerged for our four-legged companions. Pet health and activity trackers are bounding onto the market, promising to provide similar insights for dogs, cats, and other animals. This technological shift reflects the growing humanization of pets, with owners increasingly seeking data-driven approaches to animal care and wellbeing.Health Monitoring Benefits for PetsFor some pet owners, these devices have proven invaluable. Bryan Becker, a Wisconsin resident, found that a health tracker helped establish a baseline activity level for his two-year-old rescue dog, Kodak, who is anxious, deaf, and sight impaired. The device provided crucial data that helped determine the optimal dosage for Kodak's anti-anxiety medication, ensuring the dog remained active and happy without being over-medicated.Companies producing these trackers emphasize their potential for early detection of health issues. Martin Theißen, CMO of Tractive, explains that "pets instinctively hide pain or illness, symptoms often only become observable to humans once a condition is advanced." Their technology establishes unique baselines for each pet and sends health alerts when vitals deviate, potentially enabling earlier veterinary intervention.The Growing Market LandscapeThe market for pet fitness trackers is experiencing significant growth, with projections indicating it will reach $450 million (£333 million) by 2035, according to Future Market Insights. This expansion reflects both technological advancements and changing pet ownership dynamics, with owners increasingly willing to invest in premium healthcare solutions for their animals.The industry includes companies like Tractive, Fi, and Pitpatpet, each offering different combinations of GPS tracking, activity monitoring, and health metrics. These businesses argue that while human observation remains important, technology can detect subtle changes that might otherwise go unnoticed, particularly when owners cannot constantly monitor their pets.Expert Divides on Pet Tech ValueVeterinary professionals remain divided on the utility of these devices. Dr. Elizabeth Mullineaux, senior vice-president of the British Veterinary Association, cautions that "pet fitness trackers can be a fun tool to gain an insight into your pet's overall health, but they are ultimately costly and unnecessary accessories with the potential to cause needless worry if the data is over-interpreted."However, others see greater potential. Amanda Boag, vice-principal for clinical services at the Royal Veterinary College in London, acknowledges that while the field is "in its infancy," these devices have "huge potential to improve animal wellbeing" and enhance communication between veterinarians and pet owners. The RVC is even working on a prototype health tracker with a spinout company, indicating the veterinary field's growing interest in this technology.Future of Pet Health MonitoringAs the technology matures, pet fitness trackers may become more integrated into veterinary care. Proponents suggest these devices could help address the significant issue of pet obesity—estimated to affect 50% of dogs—by helping owners establish and maintain appropriate activity goals. Additionally, capturing data outside the stressful environment of a veterinary clinic could provide more accurate health assessments.The integration of artificial intelligence in interpreting pet health data represents another frontier. Companies like Fi are leveraging AI to help owners understand trends and relevance in the collected data, potentially transforming raw information into actionable insights for pet care. As this technology evolves, the debate between technological monitoring and traditional veterinary expertise will likely continue, but the growing market suggests that pet wearables are here to stay as part of the modern pet care ecosystem.

A team of divers, led by Italian artist Marco Barotti, is installing solar‑powered underwater speakers off Jamaica’s northern coast to broadcast recordings of thriving reefs, aiming to coax fish and coral larvae back to a dying ecosystem.Artists Deploy Underwater Speakers to Simulate Healthy Reef SoundscapesThe divers are laying underwater speakers on the seafloor, each linked to a floating solar panel that powers a 14‑hour daily playback of reef noises – snapping shrimp, grunting fish and shifting currents. The project, run in partnership with the Alligator Head Foundation, blends sculpture (Barotti’s 3‑D‑printed coral forms) with marine biology, attaching lab‑grown coral fragments to the installations.Acoustic Enrichment Shows Quantifiable Gains in Fish PopulationsThe Great Barrier Reef study found that playing healthy‑reef sound lured fish to degraded zones, doubling the total fish population in six weeks.Species diversity rose by 50%, a key metric for long‑term resilience.Reefs cover just 1% of the ocean floor yet support 25% of marine life.Since 1950, roughly 50% of global coral reefs have been lost.Sound‑Driven Restoration Could Shift Global Coral Conservation StrategiesBy re‑introducing the acoustic signature of a healthy reef, the approach offers a low‑cost, scalable tool that complements traditional methods such as coral gardening and heat‑resistant breeding. Restored soundscapes can attract fish, which in turn bring nutrients and improve water quality, creating a positive feedback loop that benefits both biodiversity and coastal protection against storms.Scaling the Boombox Model: What the Next Five Years May HoldResearchers anticipate pilot programs across the Caribbean, the Indo‑Pacific and the Red Sea. Funding will likely flow from climate‑adaptation grants and private‑sector partnerships interested in eco‑tourism. If acoustic enrichment proves effective at larger scales, it could become a standard component of reef‑restoration roadmaps by 2030.

Moody Takes Up the Baton for Doddie's MND ChallengeFormer England captain Lewis Moody announced he will lead a seven‑day, 500‑mile cycling challenge this summer, positioning himself as the latest high‑profile rugby figure to champion the fight against motor neurone disease (MND). He frames the effort as a continuation of the legacy left by the late Scottish great Doddie Weir.Seven‑Day, 500‑Mile Cycling Quest Across EnglandThe ride starts on 14 June in Newcastle, traverses Moody’s former clubs – Leicester, Bath and Bracknell – and finishes at Twickenham’s Allianz Stadium on 20 June. Along the route he will be joined by fellow 2003 World Cup winners such as Jonny Wilkinson, Mike Tindall and Ben Kay, plus his teenage sons.Fundraising Targets and Foundation’s Track RecordAll proceeds are pledged to the My Name’5 Doddie Foundation, which has already raised more than £23.5m for MND research. Moody’s ride aims to add a significant boost to that pot, though a precise target has not been disclosed.Raising Awareness for Motor Neurone Disease in the Rugby CommunityThe campaign highlights the growing number of former players diagnosed with MND – Moody himself revealed his diagnosis last October, joining the ranks of Doddie Weir and former rugby league star Rob Burrow. By mobilising high‑profile teammates, the ride seeks to keep the disease in the public eye and encourage early detection, especially as the UK records six new MND diagnoses each day.What the Ride Could Mean for Future Player‑Led CharitiesIf successful, Moody’s initiative could set a template for other retired athletes to leverage personal challenges into fundraising events. It may also spur increased corporate sponsorship for MND research and inspire grassroots cycling challenges across the UK, further expanding the charitable ecosystem surrounding the sport.

The LeadGiant "kraken-like" octopuses that used powerful beaks to crunch through bones of prey were among the most formidable predators of the Cretaceous oceans, according to research. Analysis of dozens of newly identified fossils reveals that some ancient octopus species reached up to 19 metres in length, meaning they would have rivalled – and possibly even preyed upon – apex predators such as mosasaurs and plesiosaurs.The Ancient Octopus DiscoveryDistinct wear patterns on the enormous fossilised beaks, which date back up to 100m years, suggest they would have routinely crushed hard bones and shells. "Our study shows that these were not simply large versions of modern octopuses," said Dr Yasuhiro Iba, a palaeontologist at Hokkaido University and lead author of the research. "They were giant predators at the very top of the Cretaceous marine food web. This changes the view that Cretaceous seas were dominated only by large vertebrate predators."Fossil Evidence and AnalysisUntil now, relatively little has been known about ancient octopuses, whose soft bodies are very rarely preserved as fossils. The study relied on detailed analysis of fossilised beaks, a hard, structure that is the only rigid part of an octopus's body. The team re-examined 15 large fossil beaks that had previously been assigned as vampire squids, but which the latest analysis concludes belonged to a group of ancient octopus relatives known as Nanaimoteuthis. Using digital imaging, the team also uncovered an additional 12 octopus beaks hidden within Cretaceous rocks, dating to 72m to 100m years ago.Size and Predation AnalysisOne species, Nanaimoteuthis haggarti, was found to have a beak larger than that of the modern giant squid, a creature that reaches about 12 metres in length and until now had been regarded the largest known invertebrate. By using the relationship between jaw size and body length in modern finned octopuses, the team estimated that N haggarti was between 7 and 19 metres in total length, which could make it the largest invertebrate on record.Expert PerspectivesDr Thomas Clements, a palaeobiologist at the University of Reading, who was not involved in the research, said: "To see a beak this size is quite amazing, to be honest. It was a massive animal. I certainly wouldn't have wanted to go swimming in the ancient oceans if these things were swimming around." Modern octopuses do not swallow prey whole but use their long, flexible arms to capture and subdue the prey and then dismantle it with their beak. The ancient specimens showed distinct patterns of wear that pointed to a similar predation strategy.Predation Behavior and DietIn the largest individuals, the beaks showed extensive wear, with once sharp features, as seen in small juveniles, becoming blunted and rounded over time, and chips and scratches also visible. Iba said: "It probably used its long arms to seize prey and its powerful lower jaw to crush hard structures such as shells or bones. The strong wear on the jaws indicates frequent processing of hard prey." This would have included bony fish, shelled animals and, possibly, giant marine reptiles such as mosasaurs, which would have been comparable in size.Behavioral SophisticationThe beaks appeared more worn on one side more than the other – evidence of so-called lateralised behavior. This suggests they may have had arm preferences (handedness) for specific tasks, as modern octopuses do, favouring some arms for exploration and others for feeding. Iba said: "This indicates that these animals were not only powerful, but also behaviourally sophisticated predators."Scientific Impact and Future ResearchClements said: "Whenever you see artistic reconstructions, it's always a vertebrate eating a cephalopod. It is quite nice to imagine an octopus eating a large vertebrate for once. As a cephalopod researcher I'm very excited to see invertebrates that may have rivalled vertebrates." The findings are published in the journal Science, opening new avenues for understanding the complexity of ancient marine ecosystems and the role of invertebrates in prehistoric food webs.

The Unexpected Wildlife ComebackThirty-five years after the catastrophic nuclear disaster at Chernobyl, the surrounding exclusion zone has become an unexpected haven for wildlife. Despite the high levels of radiation that forced humans to evacuate the area, nature has flourished in the absence of human activity. Wolves, deer, elk, and numerous other species have established thriving populations in what has become Europe's largest wildlife sanctuary.The Science Behind the ResilienceScientists studying the Chernobyl exclusion zone have discovered that while radiation does pose health risks to wildlife, many species have adapted remarkably well. The absence of human interference—hunting, habitat destruction, and pollution—has created conditions that allow wildlife populations to grow beyond what was previously possible in the region. This has led researchers to question our understanding of the long-term effects of radiation on ecosystems.Economic and Environmental Trade-offsThe Chernobyl wildlife sanctuary presents a complex economic and environmental paradox. On one hand, the nuclear disaster caused immense human suffering and economic damage. On the other hand, the restricted human access has created a unique laboratory for studying ecosystem recovery and biodiversity. The zone has become a valuable site for scientific research, attracting scientists from around the world who study radiation effects and wildlife behavior in a human-free environment.Reframing Nuclear Disaster NarrativesThe thriving ecosystem in Chernobyl challenges conventional narratives about nuclear disasters as purely environmental catastrophes. While the human cost remains undeniable, the natural recovery offers a nuanced perspective on environmental resilience. This has sparked debates among conservationists about the relative impact of human activity versus radiation on wildlife populations, with some suggesting that reduced human presence might benefit certain ecosystems more than the harm caused by radiation.Future Implications for ConservationAs climate change accelerates and human impacts on natural habitats intensify, the Chernobyl case study offers valuable insights for conservation strategies. The zone demonstrates how ecosystems can recover when given the opportunity to do so, free from human exploitation. This has led some scientists to propose creating similar 'wildlife reserves' in other areas with limited human activity, though the ethical implications of deliberately creating such zones remain controversial. The Chernobyl experience also highlights the importance of long-term ecological studies, as the full impacts of radiation on wildlife may take decades or even centuries to fully understand.