The Economist

Generative AI: what is it good for?

Alok Jha, Tom Standage, Abhi Burtix, Arjun Romani

Following the 2017 Transformer architecture and the historic 2022 adoption of GPT-3.5, large language models now process unlabeled internet data to excel at tasks ranging from medical licensing exams to code generation. Despite these capabilities, the technology remains a "black box" with complex, opaque weights that lack the transparency required for high-stakes fact-finding or full automation. Consequently, while economists project that generative AI will impact half of the daily tasks for 20% of the U.S. workforce, current deployment is expected to evolve as a human-AI collaborative workflow rather than an immediate replacement of human roles.

Heatwaves: how hot can it get?

Elliot, Oliver Morton

Global heat extremes driven by a 1°C rise in atmospheric temperatures are causing record-breaking mortality rates in South Asia, Europe, and the United States, with specific meteorological patterns like heat domes and jet stream blocking intensifying these events. Critical survival thresholds are being approached as wet bulb temperatures near lethal limits in vulnerable regions, while secondary factors such as sleep disruption and pre-existing health conditions accelerate heat-related fatalities. To mitigate these escalating risks, successful adaptation strategies modeled after France's post-2003 welfare interventions must be implemented alongside public education and urban policy shifts in areas lacking historical heat precedents.

What's the future of crypto?

Eric Hughes, Mathieu Favaz

Despite a significant decline in global market capitalization from $3 trillion to $828 billion and intensified regulatory crackdowns in 25 nations, cryptocurrency adoption remains robust in developing economies facing hyperinflation or weak financial infrastructure. The industry is now pivoting toward Web3, a decentralized internet model that shifts data ownership to users while attempting to solve scalability issues through Layer 2 solutions. However, this post-money era faces persistent challenges regarding security, the lack of central authorities for dispute resolution, and the technical limitations of nascent blockchain networks.

What causes hurricanes?

Katie, Oliver Morton

Hurricanes are classified tropical storm systems defined by sustained winds of at least 74 mph that form over warm oceans when specific atmospheric and thermal conditions converge. These massive energy engines generate winds exceeding 200 mph and release rainfall at rates capable of causing billions in damages, with water-driven phenomena like storm surges accounting for the vast majority of fatalities. While climate change may not increase the total number of storms, warming oceans and rising sea levels are intensifying rainfall and slowing storm movement, necessitating a strategic shift toward infrastructure adaptation rather than intensity reduction.

Why are wars getting longer?

Robert Guest

Rising global conflict intensity is driven by the erosion of international norms, increased foreign state intervention, and economic incentives that sustain violence in resource-scarce regions. Geopolitical shifts have created power vacuums allowing regional actors and criminal networks to fuel prolonged civil wars, while climate change further exacerbates violence through resource scarcity and displacement. Although short-term strategies like secret negotiations and inclusive peace processes offer hope, experts project a future where wars remain protracted and life expectancy remains low in the world's most vulnerable nations.

How El Niño and La Niña cause extreme weather

Global climate scientists highlight the potential emergence of a record-breaking "Godzilla El Niño" following a historically prolonged La Niña phase, building on extreme weather events like record snowfall in Western New York and recent temperature highs in the UK. Historical data from the 1997–1998 El Niño event, which caused roughly 23,000 deaths and up to $180 billion in damages, underscores the severe risks posed by the interaction between shifting Pacific sea surface temperatures and accelerating global warming. To mitigate these compounding threats, experts recommend immediately directing resources to vulnerable tropical regions, as climate models predict intensified rainfall variability and higher global temperatures in the coming years.

Beyond Good Friday: the future of peace in Northern Ireland

Patrick Lane, Sammy Heenan, Saoirse Eastwood, Sam McBride

Following a recent escalation in sectarian violence that prompted MI5 to raise the terror threat level to "severe," Northern Ireland continues to grapple with the unintended consequences of the 1998 Good Friday Agreement. While the peace deal successfully halted large-scale conflict and drove economic regeneration through tourism and investment, it has also entrenched political paralysis, deep social segregation, and unresolved trauma among victims' families. Current efforts by centrist forces like the Alliance Party to reform the power-sharing institutions aim to address chronic instability and mitigate the fresh tensions exacerbated by Brexit, all while the region faces a new generation of paramilitary activity with limited public support.

Beyond ChatGPT: what chatbots mean for the future

Generative AI chatbots are disrupting the $150 billion search advertising market by shifting user interaction from keyword queries to predictive, creative text generation, prompting major corporations like Microsoft and Google to integrate conversational interfaces directly into their platforms. While these systems demonstrate remarkable capabilities in producing art and planning tasks, they face significant criticism regarding technical hallucinations, the absence of inherent truth verification, and the ethical risks of deepfakes and copyright infringement. As venture capital surges past $1 billion, the technology is also redefining human-computer relationships through AI companions, raising concerns about the long-term degradation of critical thinking and the potential hoovering up of original web content by algorithms.

Putin's hidden war: the Russians fighting back

Putin

Following Russia's 2022 invasion of Ukraine, the Kremlin intensified its transition to complete tyranny by systematically purging dissent, blocking 250 media channels, and neutralizing opposition figures like Alexei Navalny. In response to this repression and a subsequent partial military mobilization that prompted 750,000 citizens to flee, activists shifted from mass protests to individual acts of defiance and digital resistance while abroad. As the regime maintains internal control despite conflicting casualty estimates, analysts and activists such as Marina Litvinovich argue that political change will likely depend on a future shift in public perception driven by battlefield losses rather than domestic unrest.

Why Nigeria is crucial to democracy in Africa

Peter Obi, Buhari, Mustafa, Jonathan Rosenthal, Temadayo Onushun, Aisha Nyako

Nigeria, Africa's most populous democracy, faces a severe democratic deterioration driven by a multifaceted security crisis and systemic vote-selling that erodes public trust in state institutions. A stark generational divide between an aging political elite and a youthful majority, characterized by median age of 18 and rampant unemployment, has catalyzed a shift from street protests to active electoral engagement as seen in the 2023 general election. While youth-led movements like the Young Progressives and the 2023 Peter Obi campaign signal a potential political awakening, the long-term sustainability of this momentum hinges on the state's ability to resolve entrenched economic hardship and insecurity before disillusionment sets in.

Climate-change migrants: what can be done?

Chris Brunet

Projected climate shifts threaten to displace hundreds of millions of people, a reality highlighted by the U.S. government's $50 million "managed retreat" of 37 families from the submerged Isle de Jean Charles. While island nations like Tuvalu face existential submersion by 2100 and African cities like Lagos confront mass migration challenges, experts argue that historical polluters must assume financial and moral responsibility for funding proactive relocation strategies. Without early political will to prioritize planned retreat over reactive evacuation, vulnerable communities risk catastrophic displacement that could upend entire regions.

Climate change: what is ocean acidification?

Vanessa O'Brien, Dr. Sebastian Henniger, Raven Cunningham

Research led by pioneer Vanessa O'Brien and Dr. Sebastian Henniger reveals that ocean acidification has thinned marine shells by up to 76% and dissolved deep-sea coral skeletons, precipitating ecosystem collapses that threaten global food security for 40% of the population. While companies like Heimdall pioneer direct air capture using ocean intermediaries and seagrass offers natural mitigation, experts warn that localized technological fixes cannot counteract the scale of emissions without immediate global reductions in atmospheric CO2. This convergence of historical data, biological degradation, and scalable challenges underscores an urgent "car crash" scenario requiring simultaneous atmospheric braking and marine conservation efforts.

The universe’s biggest mystery

Caitlin

This analysis details the current cosmological understanding that normal matter constitutes merely 5% of the universe, with the remaining 95% consisting of invisible dark matter and dark energy. Researchers are actively investigating dark matter candidates like WIMPs at facilities such as CERN while studying dark energy's role in accelerating universal expansion through models like the Cosmological Constant and Quintessence. These efforts aim to resolve the mystery of these components, which are critical for determining the ultimate fate of the cosmos, whether through a gradual Big Freeze or a catastrophic Big Rip.

How to make poor areas richer

Shaq, Andy Preston, Michael Weikert, Ava Miller, Jonathan, Hayley, Tom Standage

Discussions on widening regional inequality highlight the risks of centralized governance while contrasting failed de-industrialization with successful economic pivots in cities like Pittsburgh and Middlesbrough. Case studies illustrate that targeted investments in dynamic hubs, such as Germany's post-reunification spending and Tulsa's remote work incentives, can reduce unemployment and spur growth, yet persistent wage gaps and migration challenges remain. Policymakers ultimately face a strategic dilemma between revitalizing every declining area or concentrating resources on specific centers to prevent national economic collapse and mitigate the moral costs of inaction.

Energy crisis: what can 1973 teach us?

Christian Onda, Vijay Vaitheeswaran

The event analyzes the parallels between Russia's 2022 invasion of Ukraine and the 1973 oil crisis, highlighting how Western dependence on single suppliers has triggered a severe global energy shortage and humanitarian disparities. It details how current strategies, such as aggressive LNG procurement and coal expansion, are pricing out developing nations and risking long-term climate goals while failing to replicate the US model of self-sufficiency. Experts conclude that without diversifying suppliers and accelerating decarbonization, Europe faces imminent threats of mass casualties and economic instability during the upcoming winter.