Articles

OA - Liste
– Outil de recherche de références documentaires –
Uniquement les Articles

Les champs auteur(e)s & mots-clés sont cliquables. Pour revenir à la page, utilisez le bouton refresh ci-dessous.

filtre:
énergy

août 2026

Climate models simulate a wide range of 21st century warming for a given forcing scenario. Constraining this uncertainty is a central challenge in climate science because of its implications for climate policy and adaptation. The transient climate response (TCR) is a key idealized metric used to quantify future warming in response to an exponentially increasing CO2 concentration. Climate models span a range of 1.3–3 K for TCR. In attempts to constrain this range, emergent constraints on TCR based on historical temperature trends consistently pointed toward TCR values at the lower end of the range of models. However, recent evidence from trends in the short-wave and long-wave components of Earth's energy imbalance (EEI) at the top-of-atmosphere suggests that models with higher TCR lie closer to the observed EEI trends. Here, we reconcile this discrepancy and provide a revised range for TCR of 1.9–2.6 K. Using a statistical variability-filtering approach, we show that previous temperature-based constraints wer

juin 2026

For most of the modern era, capitalism justified itself through growth. Industrial societies converted vast amounts of fossil energy into production, wealth, and rising living standards. Roads, bridges, power grids, schools, and public institutions expanded alongside the economy. Inequality and exploitation remained deeply embedded in the system, but they were partly obscured by a broader story of material progress.
Cet article rapporte la difficulté du secteur manufacturier en Grande Bretagne à faire face à l’augmentation du cout de l'énergie. Dans l'ombre de cet article apparait ce qui sera la réalité à un moment donné, sans pétrole bon marché, l'industrie manufacturière ne peut pas fonctionner dans les conditions actuelles. Le contrat social sera rompu et il faudra réinventer une manière de vivre ensemble. La situation en Grande Bretagne est peut-être exacerbée par le Brexit et la situation insulaire mais elle est l'avant-poste de ce qui attend une bonne part du monde industrialisé, à moins de relancer le charbon avec toutes les conséquences sur le dérèglement climatique et la santé des personnes que nous connaissons.
C’est un indicateur climatique peu connu, et il part en vrille. Son nom : le déséquilibre énergétique de la Terre. Sa conséquence : il pourrait accélérer le réchauffement climatique bien au-delà de nos prévisions.

mai 2026

La production d'acier mondiale, responsable de 11% des émissions de gaz à effet de serre d'origine humaine, reste largement dépendante du charbon et les capacités de production d'acier "vert" n'ont que "très légèrement" augmenté en 2025, déplore l'ONG américaine Global Energy Monitor lundi. Pour transformer le minerai de fer en acier, les hauts fourneaux traditionnels consomment du charbon d'origine fossile, très polluant. Ils contribuent ainsi significativement au réchauffement de l'atmosphère.
Norway’s energy minister says country has a ‘responsibility’ to address shortfalls caused by wars in Ukraine and Middle East

mars 2026

Oil prices could jump to $200 per barrel and even higher if the Strait of Hormuz remains near-closed as it is at the moment, Fereidun Fesharaki, Chairman Emeritus of energy consultancy FGE NexantECA, told Bloomberg on Tuesday. Although the oil market is moving on sentiment and U.S. President Donald Trump’s social media posts about the war, the fact is that “every week, 100 million barrels of oil is not going through, and every month, 400 million barrels are not going through,” Fesharaki told Bloomberg Television.
Wael Sawan warns of pressure on diesel and petrol if strait of Hormuz does not reopen to oil and gas shipping
When James Prescott Joule lent his name to a unit of energy, he could not have foreseen today’s alarming calculations
Depleting THAAD and Patriot interceptor inventories threaten US extended deterrence, Gulf energy security, and the regional power balance amid sustained Iranian ballistic missile and drone assaults.

février 2026

Les commandes à Siemens Energy ont atteint un "nouveau record" au premier trimestre de son exercice décalé 2025/2026, en raison de la forte demande en électricité liée à l'IA, a annoncé mercredi l'équipementier énergétique allemand.
When a series of power outages hit Europe last year, the finger of blame was quickly – and falsely – pointed to an unlikely source: renewables. Blackouts are being used as a political tool to oppose the energy transition. But they can also become an opportunity for open discussions about energy infrastructure – a topic too often reserved only for technical audiences.
L'équipementier énergétique allemand Siemens Energy a annoncé mardi un plan d'investissement d'un milliard de dollars et la création de 1 500 emplois aux États-Unis, pour répondre à la forte demande en électricité liée à l'IA.

janvier 2026

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

décembre 2025

The activist and author of Here Comes the Sun discusses rapid advances in solar and wind power and how the US ceded leadership in the sector to its main rival

novembre 2025

87%. That’s how much the emissions of NVIDIA (worth 5 trillion dollars) increased in 2024, as an article from TruthDig is one of the only sources in the world to point out. This means it became the world’s most valuable company by answering soaring demand for AI… whilst doubling its carbon footprint. Not to mention water: Samsung’s next ‘mega-cluster’ of GPU fabs will consume half of Seoul’s water, says the same article.
Watchdog’s flagship report says rise in low-carbon electricity will make transition ‘inevitable’, despite Trump’s calls to carry on drilling

septembre 2025

The planet is nearing dangerous limits. Yet progress on clean energy shows what’s possible. With political will, cooperation can still avert the worst of the climate crisis
Much attention today focuses on uncertainties affecting the future evolution of oil and natural gas demand, with less consideration given to how the supply picture could develop. However, understanding decline rates – the annual rate at which production declines from existing oil and gas fields – is crucial for assessing the outlook for oil and gas supply and, by extension, for market balances. The International Energy Agency (IEA) has long examined this issue, and a detailed understanding of decline rates is at the heart of IEA modelling and analysis, underpinning the insights provided by the scenarios in the World Energy Outlook. This new report – based on analysis of the production records of around 15 000 oil and gas fields around the world – explores the implications of accelerating decline rates, growing reliance on unconventional resources, and evolving project development patterns for the global oil and gas supply landscape, for energy security and for investment. It also provides regional insights
Verso energy va fournir à l'industrie sidérurgique de la Sarre, en Allemagne, de l'hydrogène produit en Moselle à partir d'électricité "verte", ont annoncé vendredi l'énergéticien français et le groupe sidérurgique allemand SHS (Stahl-Holding-Saar), qui pourra ainsi décarboner sa production. Lors d'une conférence de presse à Dillingen, dans la Sarre, Verso energy et SHS ont annoncé avoir signé un contrat qui prévoit la fourniture d'au moins 6.000 tonnes d'hydrogène sur une période de dix ans à compter de 2029. Cela s'inscrit dans la stratégie de décarbonation du groupe allemand, qui entend remplacer le charbon par l'hydrogène dans son processus de fabrication de l'acier.
Conservative leader Kemi Badenoch has described her plan to “maximise extraction” of the UK’s oil and gas from the North Sea as a “common sense” energy policy. Politicians are using language like this increasingly often – calling themselves “pragmatic” on climate change and invoking “common sense”. It sounds reasonable, reassuring, and grownup – the opposite of “hysterical” campaigners or “unrealistic” targets.

juillet 2025

Despite concerns over the environmental impacts of AI models, it's surprisingly hard to find precise, reliable data on the CO2 emissions and water use for many major large language models. French model-maker Mistral is seeking to fix that this week, releasing details from what it calls a first-of-its-kind environmental audit "to quantify the environmental impacts of our LLMs."
Taking a closer look at AI’s supposed energy apocalypse
Consumers ending up shouldering most of the costs of installing and operating CCS in the UK, a new report has found.

juin 2025

In a rapidly changing climate, evidence-based decision-making benefits from up-to-date and timely information. Here we compile monitoring datasets (published at https://doi.org/10.5281/zenodo.15639576; Smith et al., 2025a) to produce updated estimates for key indicators of the state of the climate system: net emissions of greenhouse gases and short-lived climate forcers, greenhouse gas concentrations, radiative forcing, the Earth's energy imbalance, surface temperature changes, warming attributed to human activities, the remaining carbon budget, and estimates of global temperature extremes. This year, we additionally include indicators for sea-level rise and land precipitation change. We follow methods as closely as possible to those used in the IPCC Sixth Assessment Report (AR6) Working Group One report.
The growth in US power demand is surging to its highest rate in decades, driven first by the electrification of oil and gas production and then by the build out of data centers. While still below the 5-10% growth seen in China, the world’s first “electrostate," the US power sector is experiencing rapid structural growth. The country is delivering more than a 3.5% annual power demand growth rate for the first time in several decades, potentially positioning the US as the world’s next “electrostate,” despite the strong oil and gas focus of the Trump administration.
La préfecture de Gironde a confirmé samedi le rejet par l'État d'un projet de huit nouveaux forages pétroliers près d'Arcachon, en prenant une arrêté de refus d'autorisation de travaux. La demande de forages était portée par le groupe canadien Vermilion Energy, titulaire jusqu'au 1er janvier 2035 d'une concession exploitée depuis les années 1960 sur la commune de la Teste-de-Buch, près d'Arcachon, dont la forêt avait été ravagée par des incendies monstres à l'été 2022.
L'américain Constellation Energy, grand opérateur de centrales nucléaires aux Etats-Unis, a passé un accord pour fournir durant 20 ans à Meta de l'énergie produite par sa centrale nucléaire de Clinton (Illinois), a-t-il annoncé mardi.

février 2025

Clean-energy sectors drove a quarter of the country’s gross domestic product (GDP) growth in 2024 and have overtaken real-estate sales in value. The new sector-by-sector analysis for Carbon Brief, based on official figures, industry data and analyst reports, shows the growing role of clean technology in China’s economy – particularly the so-called “new three” industries, namely, solar, electric vehicles (EVs) and batteries.

novembre 2024

Trump could reverse the nation’s progress on climate change, but rolling back the Biden administration’s significant climate successes could be a low, slow and difficult process...
The results of one election can’t stop the momentum of the energy transition. But they can do a lot of damage.
A Trump presidency can delay, but not stop, the global transition to renewable energy, but it may more effectively stymie progress than during his first term.

octobre 2024

World Energy Outlook 2024 - Analysis and key findings. A report by the International Energy Agency.

août 2024

UN says a global ‘backlash’ against climate action is being stoked by fossil fuel companies

juillet 2024

A new study finds that the mining and processing of the metal critical to EV batteries and renewable energy storage projects depletes and contaminates surface water, often in already vulnerable communities.

juin 2024

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.

mai 2024

Foundational innovation in cloud technology and artificial intelligence will require more energy than ever before—shattering any illusion that we will restrict supplies.
Sharp declines in critical mineral prices mask risks of future supply strains as energy transitions advance - News from the International Energy Agency
This essay takes up and extends an analysis of the ambitions of the energy transition presented during the conference entitled “L’erreur fondamentale de la transition”, held in Lausanne in December 2022, at the annual Switzerland ShiftersDay. The intervention questioned the conceptualization of energy transition, given possible inaccuracies, or errors in the categorization of reality. It is not certain that the energy contained in the wind, solar radiation, or atoms is equivalent to hydrocarbon energy for human societalneeds. Although all energies are theoretically convertible into one another, the assumption that any type of energy can always be replaced by another is likely to prove false. An energy transition based on the substitution of energies would then be inconceivable.

avril 2024

Decarbonization efforts and sustainability transformations represent highly contested socio-political projects. Yet, they often encounter various forms of depoliticization. This article illuminates how a grand socio-ecological challenge like the energy transition gets depoliticized by an unusual suspect, namely Germany's Green Party. Based on a qualitative content analysis of Green Party programs, party conventions, and additional documents published between 1980 and 2021, this article traces how the Green Party has depoliticized the energy transition over time, emphasizing a shift from radical societal change to ecological modernization. The changing stance of the German Greens on the country's energy transition reflects more profound changes of a future society the party collectively envisions through their energy and climate change agenda. These changes result from a struggle between moderates advocating incremental political reforms and radicals aiming for more fundamental and systemic societal change.