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Global migration has risen sharply from approximately 13 million people per year in 2000 to around 35 million people per year in 2023. This is according to a new dataset on human migration published in Nature by researchers from the London School of Economics and Political Science (LSE), IIASA, and the University of Hong Kong.

Social networks may help protect cognitive functioning in later life, particularly among older adults who are no longer working, according to a new IIASA-led study. Drawing on data from 27 European countries, the researchers found that social connections can help compensate for the loss of mentally stimulating interactions linked to work, with different types of relationships benefiting women and men.

New research from IIASA and the University of Oxford provides the first quantitative evidence that drought exposure over the last 12 months is associated with increased risk of sexual, emotional, and physical violence among adolescents in Southern Africa. This risk rises substantially during cumulative droughts over two years.  

Persistent methane emissions from sectors such as agriculture and growing debates over the credibility of carbon offsets are creating new challenges for governments and companies pursuing net-zero commitments. New research suggests temporary carbon storage may have a scientifically valid role in helping support climate goals, if used in the right way.

IIASA Director General Hans Joachim (John) Schellnhuber is featured in the new documentary Hirschhausen will zum Papst (Hirschhausen wants to meet the Pope), produced by Germany’s public broadcaster ARD.

A recent Table.Briefings article featuring comments by IIASA Director General Hans Joachim (John) Schellnhuber highlights growing concerns that progress in decarbonizing the global buildings sector remains too slow to achieve international climate goals. The article discusses findings from the new UNEP and Global Alliance for Buildings and Construction (GlobalABC) Global Status Report for Buildings and Construction 2025/2026.

IIASA has emerged as one of Austria’s standout research institutions in a new Elsevier report titled, Austria as a Science and Technology Nation, which benchmarks the country’s scientific performance in an international context.

Tropical forests are one of the planet's most important carbon sinks – often also called "the lungs of the Earth". But their future in a high-CO₂ world remains uncertain. IIASA researchers contributed to a new study, which suggests even small understory trees in the Amazon may initially buffer climate change more strongly. Their long-term capacity to store carbon could, however, be restricted by nutrient availability, highlighting the vulnerability of these ecosystems under future climate conditions.

A new study published in Science argues that governments should adopt three integrated energy demand goals by 2035, warning that climate policy will fall short unless it focuses not only on how energy is produced, but also on how it is used.

Rising living costs, energy insecurity, widening inequality, and escalating climate impacts are fueling discussions on fairness and justice in climate policy. Yet, assumptions in global emission scenarios that determine who benefits and who bears the costs are often only made implicitly. A new IIASA-led study addresses this gap by offering a practical way to assess and design emission scenarios that explicitly account for distributive justice.

As global population aging advances and countries face shrinking workforces, a new study focusing on China by IIASA researchers and colleagues from Nanjing University reveals how economic growth can persist despite these changes in age structures.

A new IIASA-led study finds that expanding street green space can reduce urban heat stress in cities worldwide, but even ambitious greening efforts are unlikely to offset a significant share of the additional heat expected under climate change. Instead, the research shows that street greenery should be part of a broader portfolio of urban adaptation measures.

A new IIASA-led study examines growing critiques of how global climate mitigation scenarios address equity and justice and identifies key conditions for fair, feasible, and politically credible climate action.

Multiple Earth system components appear closer to destabilization than previously believed, putting the planet at increased risk of a “hothouse” trajectory driven by feedback loops that can amplify the consequences of global warming, according to new research.

A new study sheds light on how farmer-led collaboration can help create the conditions to address biodiversity loss in agricultural landscapes. The research looks at “farmer clusters” – groups of farmers working together across landscapes to support biodiversity-sensitive farming – and explores how these collaborative initiatives evolve over time, what shapes their success, and why some mature more effectively than others.

End of January saw the launch of the new EU-funded ATMOPOLIS project, an innovative study that integrates environmental and social sciences to understand how air and noise pollution exposure affect citizens across European cities and propose actions to help improve their quality of life. IIASA researchers are leading a work package to develop an integrated decision support tool for cities.

In an interview with the publication, Klimareporter°, IIASA Director-General Hans Joachim (John) Schellnhuber reflects on the accelerating climate crisis and the search for solutions in a world approaching ecological overshoot.

In a feature published by German newspaper Frankfurter Rundschau, IIASA Director-General Hans Joachim (John) Schellnhuber warns of growing currents that undermine scientific evidence and international cooperation – trends he says, that risk dragging societies back toward myth and superstition.

IIASA researchers explored why mortality among adults of working age remains high in India alongside rapid economic growth, finding that education – at both individual and community levels – is more strongly associated with lower premature mortality than income or household wealth.

Within the next few decades, intensifying heatwaves could expose a significant share of Europe’s cattle to dangerous levels of heat stress. New research maps where and how millions of animals may be affected by mid-century.