Flux continu

L’ironie peut être une technique de communication efficace pour esquiver les critiques ou ridiculiser un adversaire.

Cyberattaques, drones, ingérences et opérations clandestines… Patinant sur le terrain ukrainien, le Kremlin intensifie sa guerre hybride contre les alliés de Kyiv.

Le Programme des Nations unies pour l’environnement prend acte du dépassement prochain de l’objectif le plus ambitieux de l’accord de Paris, et dessine une nouvelle trajectoire afin de repasser dessous avant la fin du siècle. Celle-ci implique des efforts gigantesques et des transformations radicales.

Pour la première fois, une agence des Nations unies avance des façons de s’adapter à la hausse des températures au-delà de cette barre symbolique. Mais ce constat et les solutions présentées suscitent les critiques d’associations.

Food security (FS) remains a pressing issue at the global scale. Current literature about FS points to a plethora of causes of food insecurity, among which climate change and the loss of biodiversity are critical to all facets of food security. Building on this notion, we advocate for a comprehensive understanding of drivers of food security, thus contributing by examining climate change and biodiversity as drivers of food security. The interest in this subject stems not only from the scientific community, but also from practitioners and policymakers. However, holistic encapsulation of the relevant literature addressing this subject is currently lacking. This review systematically analyses and categorises the drivers of FS induced by climate change and biodiversity. Following the Systematic Literature Review approach, 342 peer-reviewed studies were selected and synthesised. Our findings identified 11 categories of climate change drivers and 9 categories of biodiversity drivers of FS. These drivers were found

Dans son adresse à la nation jeudi, le président américain a réaffirmé avoir remporté l’élection présidentielle de 2020, évoquant au passage un « Etat profond » qui aurait caché les preuves d’une immixtion chinoise. Il a une nouvelle fois fait part de sa volonté de réorganiser le système électoral aux Etats-Unis.

Des documents internes attribués à une structure proche du Kremlin, analysés par plusieurs médias et consultés par la rédaction des Observateurs de France 24, décrivent plusieurs opérations réalisées ces derniers mois et évoquent d'autres projets d’ingérences sur le territoire français.

Alors que s’est achevée, vendredi 22 mai, aux Nations unies, la Conférence des parties chargée d’examiner le traité sur la non-prolifération des armes nucléaires, explication en cartes et graphiques des mécanismes de l’équilibre par la peur.

There is mounting experimental evidence that lifetime exposure to increasing atmospheric CO2 levels can negatively impact the normal physiology of organisms. Directly assessing this in humans is very difficult. We analysed serum bicarbonate (HCO3−), calcium (Ca) and phosphorus (P) from 1999 to 2020 as indirect proxies for atmospheric CO2 exposure. Over this period, average bicarbonate levels in this population show an increasing trend which parallels rising atmospheric CO2 concentrations. Both. If these trends continue, blood bicarbonate values could be at the limit of the accepted healthy range in half a century, and Ca and P will be at the limit of their healthy ranges by the end of this century. This has the potential to cause a range of adverse health effects.

Anthropogenic activities are increasing the amount of carbon dioxide (CO2) in the atmosphere. There is mounting experimental evidence that lifetime exposure to these increasing atmospheric CO2 levels can negatively impact the normal physiology of organisms. However, directly assessing this in humans is very difficult. We analysed serum bicarbonate (HCO3−), calcium (Ca) and phosphorus (P) levels from the U.S. National Health and Nutrition Examination Survey (NHANES) from 1999 to 2020 as indirect proxies for atmospheric CO2 exposure. Over this period, average bicarbonate levels in this population show an increasing trend which parallels rising atmospheric CO2 concentrations. Both Ca and Phave decreased steadily over the same period. If these trends continue, blood bicarbonate values could be at the limit of the accepted healthy range in half a century, and Ca and P will be at the limit of their healthy ranges by the end of this century. Studies indicate that, after this time, elevated atmospheric carbon dioxide