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The LeadThe oil crisis triggered by the Iran war has fundamentally and permanently changed the fossil fuel industry, turning countries away from fossil fuels to secure energy supplies, according to the International Energy Agency (IEA) chief. Fatih Birol, executive director of the IEA, warns that the damage is irreversible and will have permanent consequences for global energy markets for years to come.The Permanent Energy ShiftSpeaking exclusively to the Guardian, Birol emphasized that the US-Israel war on Iran has caused countries to lose trust in fossil fuels and reduce demand for them. "Their perception of risk and reliability will change. Governments will review their energy strategies. There will be a significant boost to renewables and nuclear power and a further shift towards a more electrified future," he said. "And this will cut into the main markets for oil."Birol stressed that there is no going back from this crisis: "The vase is broken, the damage is done – it will be very difficult to put the pieces back together. This will have permanent consequences for the global energy markets for years to come."The UK North Sea DilemmaWhile focused on the global picture, Birol also addressed the UK's potential plans for North Sea expansion. The oil industry and its allies have called for increased drilling, including giving the go-ahead to the Jackdaw and Rosebank fields. However, Birol cautioned that these fields would not significantly impact the UK's energy security or prices."They won't provide any significant quantities of oil and gas for many years to come," Birol said. "They will not lower the bills, the UK will remain a significant importer and price taker on international markets. I am not even talking about the climate change effects – just from a business point of view, making a major investment in exploration might not make business sense."Birol did support tiebacks—extending existing oilfields—as a different matter that should proceed.The Renewable Energy OpportunityThe vastly changed energy outlook presents expanded opportunities for renewable energy, according to Birol. He highlighted that continuing high fossil-fuel prices could tempt developing countries to turn to coal, but solar is now competitive with coal on cost and growing faster."Renewables offer a no-regrets alternative and nuclear power is also likely to be increased," Birol said. "Building renewables was an option 'I never heard that anybody ever regretted,' he said. 'I don't see any downsides for renewable energy.'"The Global Energy OutlookBirol characterized this crisis as "bigger than all the biggest crises combined, and therefore huge." He expressed surprise that "the world was so blind-sided, that the global economy can be held hostage to a 50km strait."Despite the challenges, Birol sees a path forward: "This crisis will accelerate the energy transition. The question is not whether we will transition away from fossil fuels, but how fast and how well we manage this transition."More than 50 governments, including the UK, the EU, big oil producers and scores of developing countries will meet in Colombia for the world's first international conference on the transition away from fossil fuels, where the global response to the oil crisis and the push for renewable energy will be discussed.

Executive Overview: A New Scientific Engine for DecarbonisationOn the opening day of the inaugural Transition Away Conference in Santa Marta, Colombia, a high‑profile panel of climate, economics and technology experts was announced to supply governments with science‑based roadmaps for exiting the fossil‑fuel era.Panel Structure and LeadershipThe panel will be chaired by Vera Songwe, Ottmar Edenhofer and Gilberto M Jannuzzi, and was convened by Johan Rockström and Carlos Nobre. Its remit mirrors the UK Climate Change Committee, setting national and sector‑level milestones aligned with a 1.5 °C pathway.Chairpersons: Vera Songwe (Cameroon), Ottmar Edenhofer (Germany), Gilberto M Jannuzzi (Brazil)Co‑organisers: Johan Rockström, Carlos NobreParticipating nations at launch: >50, including Nigeria, Mexico, Brazil, AngolaEconomic Calculus of Colombia’s Draft RoadmapThe Colombian draft, co‑authored by the panel, projects a 90 % reduction in fossil‑fuel use by 2050. Modelling suggests a cumulative economic benefit of $280 bn over the next 24 years, with net savings materialising in the early 2040s.Target: 90 % cut in fossil‑fuel consumption by 2050Projected net benefit: $280 bn (24 years)Break‑even: early 2040sStrategic Implications for Global Energy PolicyBy aggregating scientific insight with policy briefs, the panel aims to strengthen nationally determined contributions, inform sectoral strategies and accelerate just transitions, especially for major oil‑exporting economies that face revenue challenges.Supports COP30 call for roadmapsProvides year‑by‑year updates for governmentsTargets both emission reductions and energy securityFuture Trajectory: From Panel to Global Standard?Analysts expect the panel’s outputs to become a reference for future national climate councils. If replicated, the model could institutionalise science‑driven decarbonisation pathways worldwide, nudging even reluctant fossil‑fuel producers toward cleaner economies.

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.

First Global ‘Transition Away from Fossil Fuels’ Conference Kicks Off in Santa MartaThe world’s inaugural conference dedicated to phasing out fossil fuels opens in Santa Marta, Colombia on 24 April, running through 29 April. Co‑hosted by Colombia and the Netherlands, the event gathers a “coalition of the willing” to chart a pragmatic roadmap for low‑carbon energy after years of stalemate at UN COP meetings.Conference Structure and Participating NationsFifty‑four governments have registered, sending ministers or senior officials. Together they represent roughly one‑fifth of global fossil‑fuel production and one‑third of global demand. Key participants include:EU member states and the UKCo‑hosts of COP31: Turkey and AustraliaMajor producers: Brazil, Mexico, Nigeria, Angola, CanadaAbsent are the world’s largest emitters: China, India, the United States, Russia, Iran and Japan. Colombian Environment Minister Irene Vélez Torres emphasized that non‑participants are “not a problem” for a gathering of willing nations.Numbers Highlighting the Scale of the Coalition54 governments registeredRepresenting ~20% of global fossil‑fuel productionRepresenting ~33% of global fossil‑fuel demandOil price surge linked to war in Iran and closure of the Strait of Hormuz, a chokepoint for ~20% of world oil and LNGThe oil price spike is driving higher costs for energy, food, fertiliser and industrial goods, intensifying pressure on vulnerable populations and boosting the economic case for renewable alternatives.Why the Breakaway Conference Could Shift Climate NegotiationsUnlike the UN COP process, which requires consensus and has been repeatedly blocked by petrostates, this summit focuses on actionable items: financing mechanisms for developing nations, debt‑relief packages, and concrete demand‑reduction strategies. A panel of leading scientists—dubbed “rock‑star academics” by Vélez—will draft a technical report to guide national roadmaps.The conference also aims to harmonise overlapping global initiatives, ensuring that parallel efforts (such as the roadmap promised at COP30) do not work at cross‑purposes.What the Next Steps May Look Like for Global Fossil‑Fuel Phase‑outWhile no binding treaty is expected, the summit will produce a set of policy recommendations and a draft framework for national transition plans. These outputs are intended to feed into the forthcoming UN‑led process and to give finance ministries concrete levers for supporting clean‑energy investments.If the “coalition of the willing” can demonstrate tangible financing pathways and credible demand‑reduction targets, it could pressure reluctant major emitters to re‑engage, potentially reshaping the trajectory of global climate governance.

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 Arctic Oil Spill Challenge Last winter, inside the subarctic Churchill Marine Observatory in Canada, scientists embarked on an experiment they hoped would result in a game-changing remedy for polluted Arctic waters. They released 130 litres of diesel into an ice-covered pool filled with raw seawater pumped in from Hudson Bay and naturally occurring oil-eating microbes. The technique had been used successfully during the Deepwater Horizon oil spill in the Gulf of Mexico, and the scientists wanted to see if they could break down oil in colder waters. The microbes were sluggish in response and the population showed little change after the first three weeks, says Eric Collins, a microbiologist at the University of Manitoba in Winnipeg, who led the project. But that did not last. "When we went back eight weeks later, we saw that there was a big change," Collins says. "One particular bacterium grew to a very high abundance in the tanks and it was clear that it was feeding on the oil." But two months is too long to wait should an oil spill occur. Time is of the essence. The Shadow Fleet Threat At least 100 shadow fleet ships travelled along Russia's northern sea route last year. These are often ageing, unregulated vessels secretly transporting oil that has been placed under sanctions around the world. Just thirteen shadow fleet vessels made the journey in 2024, and none in 2023, according to data collected by the Bellona Foundation, a Norwegian nonprofit. In 2025, more than half were oil and liquefied natural gas tankers, 18 of which had low or no ice class, meaning they were not designed to operate in icy waters. This heightens the risk of an ecological disaster in one of the most fragile environments on Earth. Few techniques exist to clean up oil from Arctic waters, despite millions of dollars of investment into research. "[The shadow fleet] adds a huge unknown – where are these ships, where are they travelling to, what cargoes are they carrying? It escalates the risk," says Sian Prior, lead adviser to the Clean Arctic Alliance, a group of 24 nonprofits working to protect the Arctic from the impact of shipping. Polar observers have long forecast a steady rise in Arctic shipping as sea ice melts, but the sudden emergence of the shadow fleet on the northern sea route was unexpected, experts said. Arctic oil spill cleanup methods have not kept pace. Ksenia Vakhrusheva, the Bellona Foundation's Arctic project manager, says: "They are usually tankers meant for scrap, but the previous owners didn't want to pay for scrapping so they just sold the ships elsewhere. These types of vessels are the most concerning if they go along the northern sea route, because even if they come across light ice or some floating ice formations, it can be dangerous." The Science of Arctic Oil Cleanup The growing threat of a large-scale spill in Arctic waters is a challenge for scientists. Oil behaves differently in the Arctic compared with warmer seas. Cold temperatures make some fuel types more viscous, and they form molasses-like globules that can sink to the bottom to mix with sediment or stick on to ice. Sea ice interferes with the boats' skimmers and booms used to scrub oil from the surface. And pumping and transfer methods struggle because the oil is thicker. Synnøve Lofthus, a senior adviser on oil spill protection and environmental preparedness with the Norwegian Coastal Administration, says: "One of the core challenges with oil spill response in the Arctic is that it is the Arctic. If something happens, it's very hard to get there and do something about it." Investment and Innovation Gap Millions of dollars have gone into programmes over the past 15 years to uncover new technologies and techniques for rapid Arctic oil spill cleanup. But little has materialised. In 2012, fossil fuel companies provided $20m (£15m) to form the Arctic Oil Spill Response Technology Joint Industry Programme (JIP). The programme ended in 2017 and conceded in its synthesis report: "Substantial improvements in mechanical recovery efficiency could not be readily achieved by new equipment designs." The Future of Arctic Oil Spill Response As the Arctic continues to warm and shipping routes become more accessible, the need for effective oil spill response technologies becomes increasingly urgent. Scientists are exploring multiple approaches, including enhanced microbial solutions, chemical dispersants designed for cold water, and even controlled combustion techniques that can work in icy conditions. The success of these approaches will determine the future of Arctic shipping and the protection of one of Earth's most vulnerable ecosystems.

BP’s first AGM under new CEO Meg O’Neill turned into a “triple climate rebellion,” with shareholders rejecting key governance and climate‑strategy proposals, underscoring a widening rift between the oil giant and its investors.Shareholders Block BP’s Climate Reporting Rollback and Online‑Only AGM ProposalMore than 50% of voting shareholders voted against BP’s plan to eliminate its existing climate disclosures and to replace in‑person AGMs with an online‑only format—both moves seen as attempts to sideline climate activism at the company.Voting Outcomes Reveal Deep Investor Discontent>50% opposed the climate‑reporting repeal.18% voted against the re‑election of chair Albert Manifold.Key dissenters included LGIM, the UK’s largest asset manager, and proxy advisers Glass Lewis and ISS.The “unprecedented” revolt means BP cannot implement the defeated resolutions, though Manifold will remain chair.Implications for BP’s Climate Strategy and GovernanceThe defeat highlights investor frustration with BP’s “capital discipline” and its perceived dilution of climate disclosures. Activist group Follow This, represented by founder Mark van Baal, warned that the company’s push for higher oil and gas output clashes with a global shift away from fossil fuels.Analysts note that the backlash comes just weeks after Meg O’Neill became the first female CEO of a major oil company, adding pressure to revive BP’s flagging fortunes and restore market confidence.What the Rebellion Signals for BP’s Future and the Oil SectorGoing forward, BP is likely to retain its climate‑reporting framework and may face renewed calls for a clearer decarbonisation roadmap. The shareholder revolt could also embolden other investors to challenge similar governance moves across the energy sector, accelerating the push for greater transparency and alignment with net‑zero targets.

The Unexpected Wildlife SanctuaryForty years after the world's worst nuclear disaster, Chornobyl remains contaminated with almost half the caesium-137 that exploded from the Unit 4 reactor in 1986, along with longer-lived hazards such as plutonium, tritium and americium. Despite this persistent radioactive contamination, the exclusion zone has evolved into one of Europe's largest unplanned nature sanctuaries, challenging conventional wisdom about the long-term environmental impacts of nuclear accidents.Scientific Findings in the Exclusion ZoneResearch by environmental scientists like Jim Smith from the University of Portsmouth, who has studied the region for over 30 years, reveals remarkable ecological recovery. "Wolf populations are seven times higher than they were before the accident because there is less human pressure," Smith reports. Elk, roe, deer and rabbit populations are also flourishing, creating a biodiversity hotspot in the middle of a contaminated landscape.The National Academy of Medical Sciences of Ukraine recognizes 41,000 fatalities linked to the disaster, though scientists note this number may be dwarfed by the mortality caused by air pollution or atmospheric nuclear bomb tests by the US and Russia in the 1950s and 60s.Broader Environmental ImplicationsChornobyl's transformation mirrors similar patterns observed in other no-go areas worldwide. In Fukushima, Japan, wild boar, Japanese macaques and raccoons have become more abundant in evacuated areas since the 2011 reactor meltdown. The Korean demilitarized zone, excluded due to geopolitical tensions, now hosts 38% of South Korea's endangered species, including white-naped cranes, Siberian musk deer, Asiatic black bears and Korean gorals.These cases demonstrate what scientists call "accidental rewilding" – the ecological benefits that emerge when human pressure is removed from an environment, even in the presence of other stressors like radiation.The Future of Nuclear Power and ConservationAs climate concerns intensify and energy security becomes paramount, the Chornobyl paradox has fueled renewed debate about nuclear power's role in a sustainable future. Smith, who began his career as an opponent of nuclear power, has become a cautious supporter, acknowledging that while radiation damages DNA and has caused an estimated 15,000 extra cancer deaths in Europe, nuclear energy poses lower risks to human health and the climate than fossil fuels.Ukraine is now experimenting with resuming agriculture in less contaminated areas around Chornobyl, with researchers developing methods to assess radionuclide concentrations in potential crops. This approach balances economic needs with environmental realities, potentially offering a model for other affected regions.The Chornobyl experience ultimately challenges us to reconsider our relationship with both nuclear technology and natural ecosystems. As we confront climate change and biodiversity loss simultaneously, the exclusion zone offers valuable insights into how human absence can enable ecological recovery – a lesson that may prove crucial in reimagining our environmental future.

A U.S. district judge in Massachusetts has temporarily stopped the Trump administration's policy that would force every wind and solar project on federal lands and waters to receive personal approval from Interior Secretary Doug Burgum. The decision protects a coalition of renewable developers and keeps critical projects alive as federal tax credits near expiration.Judge Denise J. Casper Issues Preliminary Injunction Against Interior's Renewable OversightJudge Denise J. Casper, chief judge of the U.S. District Court for Massachusetts, ruled the administration’s actions likely violate federal statutes.The injunction blocks six final agency actions that would place wind and solar technologies in a "second‑class" status.The lawsuit was brought by a coalition of regional wind and solar developers, including the Alliance for Clean Energy New York and the Renewable Northwest.Legal and Financial Stakes Highlighted by the CaseThe contested policy threatens projects that rely on expiring federal tax credits for wind and solar.A Republican‑controlled law passed last year phases out renewable tax credits while boosting support for coal, oil, and natural gas.Three days after the law’s enactment, President Donald Trump issued an executive order further restricting subsidies for renewable energy.Implications for the U.S. Renewable Energy Pipeline and Climate GoalsStopping the “elevated review” process removes a major bottleneck for developers seeking leases, rights‑of‑way, and construction permits.Industry advocates argue the ruling will help meet surging electricity demand and lower consumer costs.The decision underscores the judiciary’s role in checking executive actions that could derail U.S. climate commitments.Future Legal Battles and Policy Shifts ExpectedBoth sides signal that this is likely the first of several court challenges. Renewable groups anticipate further lawsuits to protect tax credits and streamline permitting, while the administration may seek to revise its oversight framework. The outcome will shape the pace of clean‑energy deployment and the political balance between fossil‑fuel interests and climate policy.