Articles

“Water crisis” has become the default label for almost any episode of water stress, from short-lived droughts to decades-long overuse of rivers and aquifers. Yet in many regions of the world, water problems no longer resemble a crisis in the conventional sense. They represent a post-crisis failure state in which human–water systems have exceeded their hydrological carrying capacities, and societies have spent beyond their sustainable hydrological budgets for so long that critical water assets are depleted, some ecosystem damages are irreversible on human time scales, and a return to “normal” is infeasible even with prohibitive economic, social, and environmental costs.

A new international analysis published in Advances in Atmospheric Sciences on 9 January finds that the Earth's ocean stored more heat in 2025 than in any year since modern measurements began. The finding is the result of a major international collaboration led by the Institute of Atmospheric Physics at the Chinese Academy of Sciences, involving more than 50 scientists from 31 research institutions worldwide. The 2025 heat increase was 23 Zetta Joules (23,000,000,000,000,000,000,000 Joules of energy), which is equivalent to ~37 years of global primary energy consumption at the 2023 level (~620 Exa Joules per year). The assessment combines data from major international data centers and independent research groups, including three observational products (Institute of Atmospheric Physics at the Chinese Academy of Sciences; Copernicus Marine; and NOAA/NCEI) and an ocean reanalysis (CIGAR-RT) from three continents: Asia, Europe, and America. These groups confirm that the 2025 ocean heat content (OHC) reached the h

L'aide militaire à l'Ukraine pourrait atteindre son plus bas niveau en 2025, a prévenu mercredi l'institut de recherche allemand Kiel Institute, les Européens, qui en fournissent désormais l'essentiel, ne parvenant plus à compenser l'arrêt de l'aide américaine.

22 of the planet’s 34 vital signs are at record levels, with many of them continuing to trend sharply in the wrong direction. This is the message of the sixth issue of the annual “State of the climate” report. The report was prepared by an international coalition with contribution from the Potsdam Institute for Climate Impact Research (PIK) and led by Oregon State University scientists. Published today in BioScience, it cites global data from the Intergovernmental Panel on Climate Change (IPCC) in proposing “high-impact” strategies.

Four key parts of the Earth’s climate system are destabilising, according to a new study with contributions from the Potsdam Institute for Climate Impact Research (PIK). Researchers analysed the interconnections of four major tipping elements: the Greenland ice sheet, the Atlantic meridional overturning circulation (AMOC), the Amazon rainforest and the South American monsoon system. All four show signs of diminished resilience, raising the risk of abrupt and potentially irreversible changes.

A California outfit has used artificial intelligence to design viral genomes before they were then built and tested in a laboratory. Following this, bacteria was then successfully infected with a number of these AI-created viruses, proving that generative models can create functional genetics. "The first generative design of complete genomes." That's what researchers at Stanford University and the Arc Institute in Palo Alto called the results of these experiments. A biologist at NYU Langone Health, Jef Boeke, celebrated the experiment as a substantial step towards AI-designed lifeforms, according to MIT Technology Review. "They saw viruses with new genes, with truncated genes, and even different gene orders and arrangements," Boeke said.

The global economy could face a 50% loss in GDP between 2070 and 2090, unless immediate policy action on risks posed by the climate crisis is taken. Populations are already impacted by food system shocks, water insecurity, heat stress and infectious diseases. If unchecked, mass mortality, mass displacement, severe economic contraction and conflict become more likely.

Une bonne politique climatique repose sur une bonne science climatique. Et une bonne science climatique repose sur le Groupe d’experts intergouvernemental sur l’évolution du climat (GIEC*) depuis sa création par les gouvernements en 1988. Le GIEC est composé de dizaines de milliers de scientifiques issus de dizaines de pays, qui couvrent les multiples facettes du « pourquoi » et du « comment » du changement climatique. Il établit une ligne consensuelle dans des rapports (*) volumineux publiés tous les cinq ou six ans. Il a si bien rempli cette mission qu’il a reçu en 2007 le prix Nobel de la paix aux côtés de l’ancien vice-président Al Gore.

2023 set a number of alarming new records. The global mean temperature also rose to nearly 1.5 degrees Celsius above the preindustrial level, another record.A team led by the Alfred Wegener Institute puts forward a possible explanation for the rise in global mean temperature: our planet has become less reflective because certain types of clouds have declined. The work is published in the journal Science.

Scientists may have to rethink the relationship between the ocean’s circulation and its long-term capacity to store carbon, new research from MIT suggests. As the ocean gets weaker, it could release more carbon from the deep ocean into the atmosphere — rather than less, as some have predicted.

Het wereldwijde gebruik van fossiele brandstoffen bereikte in 2023 een nieuw record. Dat blijkt uit een rapport van het Energy Institute, de Britse beroepsorganisatie voor werknemers in de energie-industrie. Ook de uitstoot van de energie-industrie was nog nooit zo hoog.

04/17/2024 - Even if CO2 emissions were to be drastically cut down starting today, the world economy is already committed to an income reduction of 19 % until 2050 due to climate change, a new study published in “Nature” finds. These damages are six times larger than the mitigation costs needed to limit global warming to two degrees. Based on empirical data from more than 1,600 regions worldwide over the past 40 years, scientists at the Potsdam Institute for Climate Impact Research (PIK) assessed future impacts of changing climatic conditions on economic growth and their persistence.

Le débat sur les nouveaux OGM est biaisé par les lobbies qui défendent toute une série d’intérêts économiques. A la faveur de sa présidence européenne, la Belgique doit se positionner dans ce dossier en facilitant l’élaboration d’une politique européenne qui donne la priorité à l’équité, à l’autonomie des agriculteur.e.s, à la santé publique et à l’environnement.

New data on WRI's Aqueduct platform ranks the world's most water-stressed countries. One-quarter of the global population regularly use up their entire water supply.

Are we already living in the Anthropocene? For the past three years, the Anthropocene Working Group (AWG) has undertaken extensive research at 12 different locations across the globe to search for geological evidence of recent planetary change provoked by industrialized humanity. The AWG’s aim was to identify a geological reference section, a so-called Global boundary Stratotype Section and Point (GSSP, commonly referred to as the "Golden Spike") that would indicate the start of a new Earth epoch, the Anthropocene. The research process has been closely accompanied by the Haus der Kulturen der Welt (HKW) and the Max Planck Institute for the History of Science (MPIWG) within the collaborative framework of the Anthropocene Curriculum. On July 11, 2023, the scientists of the AWG will present their proposed Anthropocene GSSP candidate in a joint online press conference with the Max Planck Society and former members of the HKW. The press conference takes place as a special event of the international Max Planck So

Alors que l’UE encourage les États membres à ratifier une nouvelle série d’accords de commerce, notamment à l’occasion du sommet UE-CELAC de mi juillet 2023, l’Institut Veblen examine dans cette note le degré d’alignement de ces accords avec les engagements internationaux en matière de lutte contre le changement climatique et de protection de l’environnement. L’Institut formule plusieurs propositions concrètes pour avancer dans ce domaine.

Rejoignez l'équipe du Earth Negotiations Bulletin pour faire le bilan d'une année sans précédent dans les négociations sur le développement durable.

La célèbre primatologue britannique Jane Goodall était de passage en Belgique. Nous l’avons rencontrée pour évoquer la crise de la biodiversité, son travail de conservation des grands singes avec le Jane Goodall Institute, et ses découvertes sur les chimpanzés.

The State of Climate Action 2022 report analyzed progress across 40 indicators of action needed by 2030 and 2050 to limit warming to 1.5 degrees C, everything from increasing renewable energy uptake to halting deforestation to shifting to more sustainable diets. We found that none of the 40 indicators assessed are on track to achieve 2030 targets.

Prior research has posed a paradox of sorts: if the risk to humanity from natural hazards is so large, then why do we exist? The human species has existed for about 200,000 years, and our ancestors for even longer. Natural hazards have existed throughout this time. If they posed a significant risk, then humanity probably would have been wiped out a long time ago—yet here we are. Prior research has taken this observation about deep human history to imply a low ongoing global catastrophic risk from natural hazards, especially in comparison to anthropogenic hazards.