Flux continu

Even if agricultural practices adapt in response to higher temperatures, five of the world's six main staple crops will suffer severe losses due to climate change. Global corn yields are projected to fall by about 12 or 28 per cent by the end of the century

Eat-Lancet report recommended shift to more plant-based, climate-friendly diet but was extensively attacked online [...] The report recommended that if global red meat eating was cut by 50%, the “planetary health diet” would provide nutritious food to all while tackling the harms caused by animal agriculture, which accounts for over 14% of all greenhouse gas emissions worldwide. It suggested individuals – particularly in wealthy countries – should increase their consumption of nuts, pulses and other plant-based foods while cutting meat and sugar from their diets.

The world could fall short of food by 2050 due to falling crop yields, insufficient investment in agricultural research and trade shocks, according to Joe Biden’s special envoy for food security, Dr Cary Fowler. Fowler, who is also known as the “father” of the Svalbard Global Seed Vault, a global store of seeds for the most significant crops, said studies by agricultural economists showed the world needed to produce 50-60% more food by 2050 in order to feed its growing population. But crop yields rates were projected to decline by between 3-12% as a result of global heating.

Depleted soil leads to reduced yields, forcing farmers to rely on fertilizers that raise food production costs, consumer prices.

Simultaneous harvest failures across major crop-producing regions are a threat to global food security. Concurrent weather extremes driven by a strongly meandering jet stream could trigger such events, but so far this has not been quantified. Specifically, the ability of state-of-the art crop and climate models to adequately reproduce such high impact events is a crucial component for estimating risks to global food security. Here we find an increased likelihood of concurrent low yields during summers featuring meandering jets in observations and models. While climate models accurately simulate atmospheric patterns, associated surface weather anomalies and negative effects on crop responses are mostly underestimated in bias-adjusted simulations. Given the identified model biases, future assessments of regional and concurrent crop losses from meandering jet states remain highly uncertain. Our results suggest that model-blind spots for such high-impact but deeply-uncertain hazards have to be anticipated and acc

Malgré une importante surface agricole utile rapportée à ses habitants et une balance agroalimentaire positive, la France est loin de la souveraineté alimentaire, constatent les universitaires Ivar Ekeland, Dominique Méda et Philippe Pointereau, dans une tribune au « Monde ».

Alors que la COP28 entame ses derniers jours de travaux à Dubaï, la FAO a présenté dimanche un plan révolutionnaire qui vise à transformer les systèmes agroalimentaires mondiaux en puits de carbone d’ici à 2050.

Raphaël Goblet Eco-Conseiller chez Les Joyeux Résistants ; Administrateur de L’Ardoise, Monnaie Locale ; Animateur & Conférencier ; Organisateur d’événements ; Auteur, compositeur, interp…

Le sucre n'est pas qu'un carré blanc qui sert à adoucir notre café. Dans un nouvel ouvrage intitulé "Géopolitique du sucre", Sébastien Abis, directeur du club Demeter, interroge les dessous de ce produit alimentaire qui devient de plus en plus un atout énergétique, via la fabrication d'éthanol. Pour l'Inde et le Brésil, les deux plus gros producteurs mondiaux, il s'agit ainsi de sortir du tout pétrole.

Haber-Bosch - Au début du XXᵉ siècle, deux chimistes réussissent à fixer l'azote de l'air. Leur invention a permis l'industrialisation de l'agriculture et le dérèglement du cycle de l'azote.