Julian Cribb
Julian Cribb is a science writer who covers how interconnected environmental, technological and social risks threaten human health and survival, and he uses long-form analysis to map practical pathways away from existential catastrophe. His work centres on what he describes as a tenfold human existential crisis, blending science, public policy and systems thinking rather than treating health, climate, food and pollution as separate beats. He writes for Pearls and Irritations, a public policy journal, and is the author of six books on the human existential emergency, most recently “How to Fix a Broken Planet”.
The human future and catastrophic risk
Cribb’s core frame is the human future, and he repeatedly returns to the idea that multiple large-scale threats are converging on human health and survival at once. In Pearls and Irritations he writes pieces such as “A distracted world marches steadily towards catastrophe”, where he sets out how war, climate disruption, technological misuse and ecological damage interact rather than occur in isolation. In the “Human Future” section he explores how emerging technologies including artificial intelligence can amplify risk, and how human behaviour and governance shape the likelihood of crises.
He treats pandemics as one threat in this wider matrix, asking in one essay “Who will release the next pandemic?” and focusing on the way human systems – from research oversight to biosecurity and misinformation – create conditions for future disease outbreaks. Across his work he groups food insecurity, climate change, nuclear risk, chemical pollution, disinformation and uncontrolled technologies as facets of the same existential problem, informed by his stated coverage of science, risk, technology, food, environment and health. Away from the journal he extends this theme in public talks and interviews on topics such as an Earth System Treaty and fixing the planet’s future, where he discusses legal and governance frameworks to manage catastrophic threats collectively.
Food security, renewable food and health
Food systems are a recurring focus, which he links directly to both planetary stability and human health. In Pearls and Irritations he writes “The coming famine”, arguing that rising temperatures and extreme weather will trigger regional harvest failures that build towards major famines later this century. He connects this to soil degradation, freshwater scarcity, conflict and industrial extraction, describing a “silent disaster” unfolding in the world’s food-producing soils and water supplies. This line of coverage is consistent with his earlier book work on global food crises, where he has explored how combined pressures such as climate change, energy costs and policy responses drove past price spikes and hunger.
Cribb’s reporting on food is solutions-oriented, built around what he calls “renewable food”: regenerative farming, urban food production and deep ocean aquaculture as a way to feed people while reducing ecological damage. He returns to this concept in other outlets, outlining how redesigning food systems could relieve pressure on wild ecosystems and allow large areas to be returned to nature. The health dimension in this sub-beat is implicit and broad – food security as a determinant of population health, and food production practices as drivers of pollution, conflict and instability that cascade into physical and mental harm.
Climate change, pollution, waste and a habitable Earth
Cribb writes extensively about climate change and pollution as twin threats to a habitable planet and to human health. In “How to stop climate change” he focuses on practical strategies for cutting emissions, situating climate action within broader conversations about national policy and collective responsibility. He links climate impacts to specific ecological indicators, such as mass coral bleaching and reef decline, using events like coral catastrophe to signal wider risks to human societies.
His coverage of chemical pollution and waste broadens the health lens from climate to toxic exposure and resource loss. In “Turning waste into wealth” he details how the world discards an estimated US$30 trillion of valuable materials each year, and he frames the circular economy as both an economic opportunity and a route to reducing environmental and health harms from waste. Through work such as “Earth Detox” he addresses the scale of global poisoning and the need to clean up industrial chemicals and pollutants that affect human bodies and ecosystems. In an op-ed laying out a plan for preserving a habitable Earth, he proposes a renewable or circular world economy, an end to fossil fuels, new human rights including a right not to be poisoned, and a world pandemic plan, tying pollution, energy, disease and rights together under the banner of planetary and public health.
Leadership, governance and truth in crisis
Governance and leadership are another distinct strand in Cribb’s work, treated as structural determinants of whether societies navigate existential risks successfully. In “Our Parliament: an unqualified failure for the future” he argues that persistent political bias against science, technology and education undermines long-term preparedness, positioning evidence-based policy as central to managing large-scale threats. In “The Age of Women” he explores leadership by women as critical to escaping catastrophe, linking leadership styles and representation to decision-making on peace, environment and social stability.
He writes about intergenerational responsibility and economic power in “The wisdom of the elders, the greed of the rich”, examining how older generations and wealthy actors influence resource use, risk-taking and responses to global crises. Information integrity is part of this governance beat: in “Lies, damned lies and catastrophic risks” he highlights disinformation and misinformation as short-term threats ranked ahead of violent climate events and wars, identifying truth-telling and public understanding as prerequisites for rational risk management. In his broader plan for a habitable Earth he includes elements such as a World Truth Commission, an Earth System Treaty and a Human Survival Index, which show how his writing blends health, environment and democratic governance into systemic proposals rather than isolated policy fixes.
Across these themes Cribb writes as a science communicator rather than a daily news reporter, using essays, books and interviews to synthesise research across disciplines and propose integrated responses to risk. His beat is effectively planetary health and human survival: climate, food, pollution, pandemics, governance and technology treated as one connected story about whether people can live safely on Earth in the decades ahead.
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