Veille 2.1

Après la découverte de fortes concentrations de virus H5N1 dans le lait de vaches contaminées par la grippe aviaire aux Etats-Unis, l'OMS a recommandé vendredi d'appliquer des mesures de sécurité alimentaire de bon sens comme l'usage de lait pasteurisé.

Over the past 50 years, humans have extracted the Earth’s groundwater stocks at a steep rate, largely to fuel global agro-economic development. Given society’s growing reliance on groundwater, we explore ‘peak water limits’ to investigate whether, when and where humanity might reach peak groundwater extraction. Using an integrated global model of the coupled human–Earth system, we simulate groundwater withdrawals across 235 water basins under 900 future scenarios of global change over the twenty-first century. Here we find that global non-renewable groundwater withdrawals exhibit a distinct peak-and-decline signature, comparable to historical observations of other depletable resources (for example, minerals), in nearly all (98%) scenarios, peaking on average at 625 km3 yr−1 around mid-century, followed by a decline through 2100. The peak and decline occur in about one-third (82) of basins, including 21 that may have already peaked, exposing about half (44%) of the global population to groundwater stress. Most

Een gelekte nota toont de prioriteiten van de EU-lidstaten voor de nieuwe Europese Commissie na de komende Europese verkiezingen. De Bond Beter Leefmilieu is formeel: “De EU-regeringsleiders willen elke inzet voor de biodiversiteit- en klimaatcrisis overboord gooien”.

In een historische uitspraak heeft het Europees Hof voor de Rechten van de Mens vastgesteld dat landen die nalatig zijn in het uitvoeren van effectief klimaatbeleid, de mensenrechten van hun burgers schenden.

6 Europese lidstaten, onder leiding van de Oostenrijkse minister van Landbouw, vragen versoepelingen van de ontbossingswet die eind dit jaar van kracht wordt. Die moet verhinderen dat nog producten op de Europese markt komen waarvoor bos is gesneuveld. Hun vraag wordt vandaag in Brussel besproken op de bijeenkomst van Europese Landbouwministers.

Evidence shows a continuing increase in the frequency and severity of global heatwaves1,2, raising concerns about the future impacts of climate change and the associated socioeconomic costs3,4. Here we develop a disaster footprint analytical framework by integrating climate, epidemiological and hybrid input–output and computable general equilibrium global trade models to estimate the midcentury socioeconomic impacts of heat stress. We consider health costs related to heat exposure, the value of heat-induced labour productivity loss and indirect losses due to economic disruptions cascading through supply chains. Here we show that the global annual incremental gross domestic product loss increases exponentially from 0.03 ± 0.01 (SSP 245)–0.05 ± 0.03 (SSP 585) percentage points during 2030–2040 to 0.05 ± 0.01–0.15 ± 0.04 percentage points during 2050–2060. By 2060, the expected global economic losses reach a total of 0.6–4.6% with losses attributed to health loss (37–45%), labour productivity loss (18–37%) and i

Le Brexit, la toute-puissance de la Big Tech, les cryptomonnaies, les fake news et même la hausse des prix du café : tout s’explique par le “quantitative easing”, affirme “The New Statesman”. L’hebdomadaire britannique choisit de faire sa une sur les risques et les limites de cette politique monétaire.

Anthropogenic emissions drive global-scale warming yet the temperature increase relative to pre-industrial levels is uncertain. Using 300 years of ocean mixed-layer temperature records preserved in sclerosponge carbonate skeletons, we demonstrate that industrial-era warming began in the mid-1860s, more than 80 years earlier than instrumental sea surface temperature records. The Sr/Ca palaeothermometer was calibrated against ‘modern’ (post-1963) highly correlated (R2 = 0.91) instrumental records of global sea surface temperatures, with the pre-industrial defined by nearly constant (<±0.1 °C) temperatures from 1700 to the early 1860s. Increasing ocean and land-air temperatures overlap until the late twentieth century, when the land began warming at nearly twice the rate of the surface oceans. Hotter land temperatures, together with the earlier onset of industrial-era warming, indicate that global warming was already 1.7 ± 0.1 °C above pre-industrial levels by 2020. Our result is 0.5 °C higher than IPCC estim

Le monitoring mené par la Société wallonne des eaux (SWDE) dans le cadre de la recherche de PFAS se poursuit.

Societies and political structures, like the humans they serve, appear to become more fragile as they age, according to an analysis of hundreds of pre-modern societies.

Policy-makers seeking to limit the impact of coal electricity-generating units (EGUs, also known as power plants) on air quality and climate justify regulations by quantifying the health burden attributable to exposure from these sources. We defined “coal PM2.5” as fine particulate matter associated with coal EGU sulfur dioxide emissions and estimated annual exposure to coal PM2.5 from 480 EGUs in the US. We estimated the number of deaths attributable to coal PM2.5 from 1999 to 2020 using individual-level Medicare death records representing 650 million person-years. Exposure to coal PM2.5 was associated with 2.1 times greater mortality risk than exposure to PM2.5 from all sources. A total of 460,000 deaths were attributable to coal PM2.5, representing 25% of all PM2.5-related Medicare deaths before 2009 and 7% after 2012. Here, we quantify and visualize the contribution of individual EGUs to mortality.

The State of the Cryosphere 2023 – Two Degrees is Too High report shows that all of the Earth’s frozen parts will experience irreversible damage at 2°C of global warming, with disastrous consequences for millions of people, societies, and nature. Confirming that just 2°C of global warming will trigger irreversible loss to Earth’s ice sheets, mountain glaciers and snow, sea ice, permafrost, and polar oceans, it updates the latest science and highlights the global impacts from cryosphere loss.

Le conflit au Proche-Orient renforce une confusion entre faits et fiction qui gagne du terrain au Royaume-Uni, s’inquiète l’hebdomadaire de gauche “The New Statesman”. Le symbole d’une perte de repères profonde liée au sentiment de déclassement des sociétés occidentales, selon le journaliste Andrew Marr.

De Europese Unie zal haar eigen energie- en klimaatdoelen niet halen op basis van de plannen die tot nog toe zijn ingediend. Dat blijkt uit een vernietigende doorlichting van Climate Action Network Europe, een koepel van milieuorganisaties.

Life on planet Earth is under siege. We are now in an uncharted territory. For several decades, scientists have consistently warned of a future marked by extreme climatic conditions because of escalating global temperatures caused by ongoing human activities that release harmful greenhouse gasses into the atmosphere. Unfortunately, time is up. We are seeing the manifestation of those predictions as an alarming and unprecedented succession of climate records are broken, causing profoundly distressing scenes of suffering to unfold. We are entering an unfamiliar domain regarding our climate crisis, a situation no one has ever witnessed firsthand in the history of humanity.