Jean Jouzel

From floods to droughts, erratic weather patterns are affecting food security, with crop yields projected to fall if changes are not made

UN GEO report says ending this harm key to global transformation required ‘before collapse becomes inevitable’

We propose a new paradigm, as toxicology currently lacks the proper perspective. From the 1950s to the 1970s, at least one-third of all toxicological testing in the United States, including for chemicals and drugs, was misleading scientists, and this worldwide issue persists today. Moreover, petroleum-based waste and heavy metals have been discovered in pesticide and plasticizer formulations. These contaminations have now reached all forms of life. Widespread exposure to chemical mixtures promotes health and environmental risks. We discovered that pesticides have never undergone long-term testing on mammals in their full commercial formulations by regulatory authorities or the pesticide industry; instead, only their declared active ingredients have been assessed, contrary to environmental law recommendations. The ingredients of these formulations are not fully disclosed, yet the formulations are in general at least 1000 times more toxic at low environmentally relevant doses than the active ingredients alone u

“We’re losing 120 calories per person, per day, for every degree of global warming.” That stark data point from a 2025 Nature study signals more than a threat to food security, it points to a growing risk to global financial security. Food system instability exposes markets to cascading shocks: inflation, trade disruption, insurance losses and sovereign credit stress. Yet these risks remain largely unaccounted for in core financial systems.

Five of the seven breached planetary boundaries are linked to food systems. By transforming production and adopting a “planetary health diet,” we can halve food-related climate emissions and prevent millions of deaths, according to the 2025 EAT-Lancet Commission.

Purpose Animal emissions account for nearly 60% of total greenhouse gas emissions from the livestock sector. To estimate these emissions, the Food and Agriculture Organization of the United Nations (FAO) developed a dedicated module within the Global Livestock Environmental Assessment Model (GLEAM). Although previous studies have explored selected inputs for specific animals and emission types, a comprehensive analysis of all 92 inputs (parameters and emission factors) had not been conducted. This study aimed to identify the most influential inputs affecting ruminant emissions in GLEAM.

Exclusive: Increasingly extreme weather a threat to production and supply chains in Britain and elsewhere

2024 was the hottest year on record [1], with global temperatures exceeding 1.5 °C above preindustrial climate conditions for the first time and records broken across large parts of Earth’s surface. Among the widespread impacts of exceptional heat, rising food prices are beginning to play a prominent role in public perception, now the second most frequently cited impact of climate change experienced globally, following only extreme heat itself [2]. Recent econometric analysis confirms that abnormally high temperatures directly cause higher food prices, as impacts on agricultural production [3] translate into supply shortages and food price inflation [4, 5]. These analyses track changes in overall price aggregates which are typically slow-moving, but specific food goods can also experience much stronger short-term price spikes in response to extreme heat.

Major study finds world's most productive farming regions are especially vulnerable to rising temperatures, and face steep declines in agricultural output this century.

Slechts één land ter wereld produceert genoeg voedsel om zijn bevolking volledig te voeden volgens moderne voedingsrichtlijnen: het Zuid-Amerikaanse Guyana. Dat blijkt uit een grootschalige analyse van de productiecapaciteit van 186 landen, gepubliceerd in het toonaangevende tijdschrift Nature Food. De studie, geleid door onderzoekers van de Universiteit van Göttingen, toont aan dat de meeste landen ver achterblijven in het realiseren van een gezond voedingspatroon op basis van eigen productie.