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Ian McEwan Warns Pessimism Threatens Climate ActionAt a Hay Festival panel on 26 May 2026, acclaimed novelist Ian McEwan argued that widespread pessimism is "a bigger problem than climate change" and that optimism should be treated as a moral duty to sustain future generations.Panel Highlights Climate Concerns Amid Record HeatMcEwan shared the stage with former NFU president Minette Batters and broadcaster Sandi Toksvig. The discussion unfolded as London hit 34.8°C, breaking a May record set in 1922, underscoring the immediacy of climate impacts.Record‑Breaking May Temperatures QuantifiedLondon temperature: 34.8°C on 25 May 2026.Previous May record: 1922.UK heatwave coincided with the release of McEwan’s new novel What We Can Know, set in a flooded 2119 Britain.How Pessimism Undermines Public and Agricultural ResilienceMcEwan linked pessimism to reduced civic engagement, suggesting that optimism fuels rational action. Batters warned that extreme weather left her farm with only 50% of normal hay and silage yields, and that just 7% of English farmers fully understand Defra’s farming vision.Outlook: Shifting Toward Optimism and Policy ChangeBoth speakers called for concrete steps: McEwan cited renewable electricity surpassing fossil fuels in 2020 as a hopeful milestone, while Batters criticized policy uncertainty, including proposals like a land‑value tax. The panel concluded that fostering optimism—through small personal actions such as installing balcony solar panels—could create a “nudge” toward broader climate solutions.

Heatwaves have grown hotter and stronger as the planet has warmed, making what doctors call a "silent killer" even more dangerous. How worried should we be about heat – and how can we stay safe as the climate changes?The Human Cost of Extreme HeatHot weather kills an estimated half a million people each year. The average annual death toll is greater than that from wars or terrorism, but smaller than that from cars or air pollution.Despite this, heat is rarely listed as the cause of death. That's because extreme temperatures are largely indirect killers. Most heat victims die early from illnesses – such as heart, lung and kidney disease – that are made worse in warm weather.The Physiological Impact of Heat StressHigh heat stresses the human body, sending the heart and kidneys into overdrive as they work to keep the body cool. The added strain – particularly for those with chronic illness – can prove fatal even before heatstroke hits.There are also secondary health effects from high heat. Heatwaves lead to more accidents, dirtier air, bigger wildfires and more frequent power outages, all of which can increase the burden on health systems.The Critical Role of Nighttime TemperaturesWhen days are too hot to function and nights are not cool enough to recover, the body is unable to rest. This compounds the damage done during scorching days.In many European countries, meteorologists describe nights with temperature minimums above 20°C as "tropical", while in Spain, which is more familiar with extreme heat, they call nights above 25°C "equatorial" or "torrid". In recent years, they have informally introduced a new category for night-time temperatures above 30°C: "hellish".Identifying Vulnerable PopulationsPeople who are forced to be outdoors in scorching weather – builders, farmers, rough sleepers etc – are most likely to suffer from heat exhaustion and the heatstroke that can follow.But older people, and particularly those with underlying illnesses, make up the bulk of heat-related deaths. Women are more likely to die from heat-related causes than men. Poorer people – who are less likely to have air conditioning, well-insulated homes or access to green spaces – are also at greater risk.The Humidity FactorSweat is the body's best defence against heat, lowering internal temperatures as it evaporates. But when humidity is high and the air hot and sticky, the body struggles to cool down because sweat clings to the skin. The effect this has on perceived temperatures can be equal to several degrees, enough to spell the difference between life and death.Climate Change and Escalating HeatwavesMore than a century's worth of fossil fuel pollution has clogged the atmosphere, trapping sunlight and heating the whole planet. Average global temperatures have risen by about 1.3°C since preindustrial times – and land temperatures by even more – which has pushed the baseline higher and made punishing extremes far more common.There is also some evidence that the climate crisis is making heatwaves worse by weakening the jet stream. Scientists think this is increasing the occurrence of heat domes, which are areas of high pressure and heat that get stuck over a region for days or even weeks.The Net Effect of Rising TemperaturesCold weather kills far more people than hot weather today, even in warm regions such as sub-Saharan Africa and south Asia. But as temperatures rise, the number of deaths from heat is projected to grow much faster than the number of lives saved from milder cold. When scientists modelled this in 854 European cities, they found a net increase in temperature-related deaths under all emissions scenarios, even accounting for how people adapt.Adapting to a Hotter FutureCutting fossil fuel pollution is the biggest step that can be taken to stop heatwaves from getting even hotter, along with protecting forests and wetlands that suck carbon dioxide out of the atmosphere.Urban planners have called for cities to be redesigned so they have less concrete and fewer cars, and more parks and water. This can negate the urban heat island effect, which makes cities hotter than their rural surroundings.Buildings with air conditioning or passive cooling can bring down death tolls, as can strong healthcare systems and swift emergency warnings.The Air Conditioning DilemmaAir-conditioning units increase planet-heating emissions if the power they consume is generated by burning fossil fuels, as it mostly is today, but their pollution is falling as countries clean up their electricity grids. Some experts cite the scale of the heat-related death toll as a worthy reason to use more air conditioning – particularly for the most vulnerable groups – even if it pushes temperatures higher.This year, the UK's Climate Change Committee (CCC) recommended that air conditioning be installed in all care homes and hospitals within the next 10 years, and in all schools within 25 years.Personal Safety StrategiesThe simplest advice is to stay out of the heat: avoid going outside during the hottest parts of the day, and stay in the shade if you have to. To keep your home cool, close windows during the day and open them after dark, when outdoor temperatures fall below inside temperatures. Cover windows with blinds or curtains to block out direct sunlight.Doctors also recommend drinking water frequently, wearing loose clothing and checking on vulnerable people in your community.

The LeadA leaked internal memo from BHP, the world's largest mining company, has revealed a significant reversal in the company's climate strategy. The document shows that BHP has slammed the brakes on several key climate initiatives, despite public commitments to environmental sustainability. This revelation comes at a critical time when the mining industry faces increasing scrutiny over its environmental impact and role in climate change.The Climate Strategy ReversalThe internal memo, obtained by The Guardian, outlines a dramatic shift in BHP's approach to climate initiatives. According to the document, the company has paused or significantly reduced funding for several key projects aimed at reducing its carbon footprint. These include scaling back investments in renewable energy projects, delaying the transition to electric mining vehicles, and reconsidering targets for reducing Scope 3 emissions, which account for the majority of the company's carbon footprint.The memo reportedly expresses concerns about the financial viability of these initiatives and suggests that the company needs to focus on short-term profitability rather than long-term environmental goals. This represents a significant departure from BHP's previous public stance on climate change, where the company had positioned itself as a leader in sustainable mining practices.Financial ImplicationsThe decision to scale back climate initiatives is likely to have significant financial implications for BHP. While the company may save money in the short term by reducing investments in green technologies, it risks facing long-term costs from regulatory penalties, carbon taxes, and potential divestment by environmentally conscious investors.The mining industry as a whole is facing increasing pressure to address its environmental impact. With global temperatures rising and governments implementing stricter environmental regulations, companies that fail to adapt their business models may find themselves at a competitive disadvantage in the coming decades.Industry-Wide RepercussionsBHP's decision to slow its climate push could have far-reaching implications for the mining industry. As one of the largest and most influential mining companies, BHP's actions may set a precedent for other firms in the sector. This could lead to a broader slowdown in climate initiatives across the industry, potentially undermining global efforts to reduce emissions from the mining sector.The mining industry is responsible for a significant portion of global greenhouse gas emissions, both directly through operations and indirectly through the extraction and processing of fossil fuels. Any reduction in climate action by major players like BHP could make it more difficult for the world to meet its climate targets under the Paris Agreement.Future OutlookLooking ahead, BHP's climate strategy reversal may prove to be a short-term decision with long-term consequences. As the global economy continues to transition toward sustainability, companies that fail to invest in green technologies may find themselves struggling to compete in a low-carbon future.Investors, regulators, and consumers are increasingly demanding that companies take meaningful action on climate change. BHP will need to balance these expectations with the financial realities of operating in a volatile commodity market. The company's future success may depend on its ability to develop a climate strategy that addresses both environmental concerns and business objectives.

The Climate Reversal of a Mining GiantThe revelation that BHP cancelled and delayed commitments to act on the climate crisis should be a wake-up call. It matters in its own right: millions of tonnes of additional heat-trapping pollution will go into the atmosphere, adding to climate harm and making Australia's climate targets that much harder to reach.It also matters for the influence the world's biggest miner could have in accelerating use of technology needed to cut pollution from major industrial operations.Delayed Renewable Projects and Diesel DependenceBHP shelved the first big investment planned under its decarbonisation plan – a huge solar farm – after it was approved and funded by its board. A much larger solar, wind and battery development that would have run most of its inland operations in northern Western Australia has been delayed for at least five years.BHP has also doubled down on using diesel-powered trucks, despite a promise to switch to a fleet of electric vehicles running on renewable energy. Internal documents acknowledge this is inconsistent with its climate pledges.The Scale of BHP's Environmental ImpactBHP is famously known as the Big Australian – a reflection of its success and scale since its origins mining silver and lead in Broken Hill 140 years ago. It remains at or near the top of lists of the country's most profitable companies.But it is also a historic, global-scale polluter, mostly thanks to its mining of coal. Its extraction of that dirty fuel means it has been in the upper echelon of corporate emitters since industrialisation.The thinktank InfluenceMap lists it as the 31st biggest cumulative contributor to the climate crisis, and the 10th biggest among companies owned by private investors.Over the past 140 years, it has been responsible for more than 11bn tonnes of carbon dioxide pumped into the atmosphere, counting the pollution released when its customers use its products. That's equivalent to about 25 years of Australia's current annual emissions.Emissions Discrepancies and Financial CapacityThe company says it is acting – that its emissions are down 36% since 2020, putting it ahead of its target of a 30% reduction by 2030. But the detail here matters. The claimed cut is due to power purchase agreements signed for some grid-connected renewable energy projects, particularly in Chile, and the suspension of its struggling Western Australian nickel operations.Its direct onsite emissions, mostly from burning diesel, continue. And its annual report shows its scope-three emissions – those that result from the use of its products – have increased by 7% since the turn of the decade. The scale of that increase – more than 25m tonnes a year – dwarfs the reduction the company claims it has made.The company's own estimates suggest that its full decarbonisation could cost US$7.5bn over the next 25 years. It brings in the equivalent revenue in less than six months from its WA operations alone.Government Policy and Corporate ResponsibilityOne reason BHP hasn't invested more heavily in emissions reduction might be that the Australian Labor government is sending mixed messages to big miners even as it pledges the country will reach net zero emissions by 2050.Mining companies receive more than $4bn a year in rebates on the cost of diesel that are not offered to households and small businesses. BHP is the biggest beneficiary. According to the thinktank Clean Energy Finance, the fuel tax credit scheme lowered its fuel bill by about $620m last year.Making fossil fuels cheaper is a strange way to encourage the uptake of electric trucks running on renewable energy. It also works against the goals of a government policy that requires big industrial sites, including those operated by BHP, to cut emissions year-on-year.

The Shift in Elon Musk's Energy Strategy Has Elon Musk given up on Tesla’s Master Plans, on the electrified economy, on solar power as we know it? From the SpaceX IPO filing released this week, it sure seems like it. Musk's Changing Approach to Renewable Energy Tesla has released four Master Plans over the years, and while details have varied, the through line has been electrification of the economy. Musk put it best in his first edition: “the overarching purpose of Tesla motors…is to help expedite the move from a mine-and-burn hydrocarbon economy towards a solar electric economy.” The Rise of Fossil Fuels in xAI's Data Centers But recently, one of Musk’s companies, xAI, has embraced the mine-and-burn hydrocarbon economy, using dozens of unregulated natural gas turbines to power its data centers with plans to buy $2.8 billion more, effectively cementing the fossil fuel’s role in the company’s AI operations. Space-Based Solar Power: The Future or a Distraction? Solar power isn’t missing in the SpaceX filing, it’s just all concentrated on space, which the company touts as the future of data center power. Terrestrial solar garners a few mentions — not as a power source for xAI data centers but instead to show how much better SpaceX thinks space-based solar will be. The Challenges of Space-Based Data Centers Even if SpaceX is able to bring down the cost of boosting a data center into orbit, the economics are challenging at best. Power prices for Starlink satellites are multiples higher than what a terrestrial data center typically spends, and protecting chips from the rigors of space won’t be easy or cheap. The Future of AI Compute and Energy Demand It’s likely that Musk considers xAI’s current data centers as stopgaps, that once SpaceX is able to loft gigawatts worth of servers into orbit — probably just a few years away, in his mind — he’ll scrap what’s here on the ground, natural gas turbines included and not have to think about NIMBYs anymore.

The LeadDonald Trump's unjustified war on Iran and the resulting global fuel crisis is a continuing reminder that true energy security and independence will continue to elude us so long as we remain dependent on fossil fuels. Whether it's wars over oil and gas resource access or attacks on fossil fuel power plants and energy grids, this reliance on finite resources only worsens a country's threat profile.The Geopolitical Energy CrisisNews this month of Russia's deadly attacks on Ukraine's energy infrastructure, Russian drones swarming Ukrainian power stations, and Kyiv running out of time to prepare for another winter of attacks on its energy grid illustrates this urgency. No country will be energy-secure or independent as long as its fuel supply remains finite and fossilized and its power plants and energy grids centralized and fossil fuel-dependent. Those are sitting ducks, targets very vulnerable to attack by adversaries.The Renewable TransitionThere is another way to bolster energy security and independence: decarbonized and decentralized energy. Using local, renewable resources to power, heat and cool a community, with battery storage for backup, provides immediate relief from being precariously power plant-dependent or grid-dependent. With the Iran war accelerating the transition to renewable energy, the gains from energy transition are obvious: countries like Spain are rapidly transitioning to renewables – better insulating themselves from gas price shocks and better protecting themselves from future grid-wide blackouts.The Ukrainian ModelThat's what Ukrainian communities are increasingly doing in response to Russian attacks on their fossil-fueled power plants and energy grids. In direct response to Russia's war, municipalities all across Ukraine are making the switch fast. Many Ukrainians who were fortunate enough to have heat this past winter had already made the switch to solar power, heat pumps and battery storage backup, thanks to the help of local non-profit organizations like EcoAction and Ecoclub, and donors abroad.The Policy DivideEfforts like the Hromada Project, which is named after the Ukrainian term for 'community', will be essential in helping Ukrainians weather the war by connecting local nongovernmental organizations in Ukraine to public- and private-sector support from around the world. Instead, Trump and his Republican followers seek to keep the US addicted to fossilized thinking. Weaponizing the Department of Defense to stall onshore wind development, repealing tax incentives for renewable energy development and using taxpayer dollars to bribe clean energy developers to abandon projects endangers our ability to adopt secure, affordable and clean energy technologies now.The Path ForwardBefore another war is waged, and American defense budgets doubled, now is the time to double down on what will make us truly secure and independent. Transitioning off the fuels that start wars, and transitioning on to the energies that are decentralized, infinite and available in every community and country on this planet: that's what real freedom looks like – and it's all within our grasp.

The End of an Era The American epoch of oil, which has defined global economics and politics for decades, is rapidly coming to an end. This shift represents one of the most significant transformations in energy history, marking the decline of an industry that has shaped nations, fortunes, and international relations. Market Forces Driving Change Several key factors are accelerating the decline of American oil dominance. The rise of renewable energy technologies, shifting consumer preferences, and international climate agreements have all contributed to this transition. American oil companies, once the undisputed leaders of the global energy sector, now face existential challenges as the world moves toward cleaner alternatives. Economic Consequences The collapse of the American oil epoch carries profound economic implications. Oil-producing states face budget crises, energy companies are undergoing massive restructuring, and global financial markets are experiencing volatility. The ripple effects extend beyond the energy sector, impacting manufacturing, transportation, and countless other industries that have built their operations around the availability of affordable oil. Geopolitical Realignment As oil loses its strategic importance, traditional alliances are being reshaped. Nations that once relied on American energy security are forging new relationships, while the geopolitical influence of oil-rich nations is diminishing. This realignment creates both risks and opportunities in the global power structure, with potentially destabilizing consequences in regions where oil has been a primary source of political influence. The Path Forward Navigating this transition will require careful planning and innovative solutions. The United States has an opportunity to lead in the new energy economy, but success will depend on strategic investments in renewable technologies and a just transition for communities dependent on fossil fuels. The coming decades will determine whether this transition is managed smoothly or marked by economic disruption and social unrest.

The Call for Emergency Declaration The climate crisis should be declared a global public health emergency by the World Health Organization (WHO), or millions more people will die unnecessarily, leading international experts have said. The independent pan-European commission on climate and health, which was convened by the WHO, concluded the climate crisis was such a worldwide threat to health that the WHO should declare it “a public health emergency of international concern” (Pheic). The Health Impacts of Climate Change The international spread of vector-borne disease, such as dengue and chikungunya, as well as the health impacts of extreme weather events, global heating, food insecurity, and air pollution make a Pheic necessary. Previous declarations include infectious diseases such as Covid and Mpox. While declaring one would not on its own reverse climate change, it would trigger the kind of coordinated international response that the scale of the health crisis demands but has not yet materialized. The Economic and Environmental Implications The 11-strong independent commission, which includes former health and climate ministers, said: “Far from being a fading priority or fake news, climate change poses an immediate and long-term threat to health, economic, food, water, environmental, personal, community, and national security.” The commission also urged governments to stop subsidizing fossil fuels, which are directly responsible for 600,000 premature deaths a year in Europe alone. The Path Forward The report also called for measures to tackle disinformation, greater use of national climate health impact assessments, as well as recognition that climate change was also a mental health crisis. The healthcare sector accounts for 5% of global emissions worldwide, so needs to prioritize adaptation to become more resilient. The report concluded that countries' healthcare systems needed to become more resilient to the rapidly changing environment in order to try to adapt as much as possible.

The Looming Fuel Crisis Demands Immediate Action Leading climate and transport organizations are calling on the UK government to implement pre-emptive measures to address an impending fuel supply crisis. The coalition, including Greenpeace and Transport and Environment, warns that ministers must not "sleepwalk into a crisis" that could lead to severe shortages of jet fuel and spiralling petrol prices in the coming months. Proposed Measures to Reduce Fuel Demand The campaign group has outlined several key measures to lower demand for oil in a fair and orderly way: Banning private jets and short-haul flights that can be covered by train in under six hours Reducing the speed limit on UK motorways to 60mph Implementing a levy on ultra-frequent flyers Doug Parr, chief scientist at Greenpeace UK, emphasized that these measures would cause minimal inconvenience now while avoiding more painful decisions later. "By getting ahead of the problem, ministers can not only soften the blow for UK drivers and passengers – they can also cut climate emissions and put fairness at the heart of this crisis response," he stated. Quantifying Potential Fuel Savings According to Greenpeace analysis, the proposed measures could have a significant impact on fuel consumption: A ban on private jets combined with measures on frequent flyers and short-haul flights could save nearly a million tonnes of jet fuel annually, representing 8% of the UK's total jet fuel consumption Reducing motorway speed limits by 10mph could save nearly half a million tonnes of fuel, equivalent to 1.5% of the UK's road transport fuel use UK's Vulnerability to Fuel Shortages The UK is particularly exposed to the looming jet fuel shortage, with analysts warning of a real risk of rationing as supplies fall to "critically low levels" just before the busy summer holiday season. This vulnerability stems from the country's dependence on imported oil and the geopolitical tensions surrounding the US-led war in Iran. International Energy Agency head Fatih Birol has warned that the conflict in Iran would have an impact similar to the combined effect of the 1970s oil shocks and Russia's invasion of Ukraine. Many governments worldwide have already introduced measures ranging from fuel rationing to limiting car journeys and increasing renewable energy investments. Political Response and Future Outlook Green party leader Zack Polanski backed the call for banning private jets, highlighting the contrast between ordinary families facing canceled holidays and the "super rich" continuing to use private jets for unnecessary trips. "The government should act now: put in place a temporary ban on non-essential private jet travel to save the summer holiday for the families who have worked hard to save for it," he urged. Anna Krajinska, UK director at Transport and Environment, emphasized that the crisis exposes the UK's dangerous dependence on volatile fossil fuels. "The long-term solution is clear, the UK must accelerate the shift to new technologies, from electric vehicles to zero-emission aviation. Breaking free from fossil fuels won't just cut emissions, it will deliver a more resilient, secure and prosperous future," she stated. A UK government spokesperson responded that while airlines are not currently seeing fuel shortages, contingency plans include options for fuel prioritization if needed. The government is not planning to change motorway speed limits, noting that private aviation accounts for a small proportion of total fuel use.