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Troquant son costume de financier en banque pour sa plume de Bon Pote, Thomas Wagner est une des figures emblématiques de la défense de l’environnement sur internet; il le dit lui même il "prendra sa retraite quand le réchauffement climatique sera de l’histoire ancienne » Sur les réseaux sociaux ou son blog, celui que l’on surnomme « l’influenceur du climat » livre un travail complet, sourcé et dense sur les sujets liés à l’actualité climatique : mieux comprendre le rapport du GIEC, comment faire son bilan carbone ou encore en apprendre plus sur l'histoire des voitures électriques, tout y passe. Par où commencer quand on veut s’informer sur la situation environnementale? Comment limiter son impact carbone au quotidien? Comment lutter contre l’eco-anxiété? J’espère que cet épisode vous donnera envie de découvrir davantage le travail de Thomas et je vous souhaite une bonne écoute
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
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In a world built by plutocrats, the powerful are protected while vengeful laws silence their critics
- George MonbiotIn the UK and around the world, those who challenge rich corporations are being hounded and crushed with ever-more inventive penalties, says Guardian columnist George Monbiot
Link to climate activism is seven times stronger for anger than it is for hope, say Norwegian researchers
Voilà comment certains présentent Jean-Marc Jancovici, Polytechnicien et ingénieur de formation, expert du sujet climatique depuis plus de vingt ans. Qui eut cru que c’est d’un homme de soixante ans, suivi par près d’1 million de personnes sur LinkedIn, qui cumule plus de 20 millions de vues sur YouTube, que viendrait cet engouement pour l’écologie ? Son discours franc, sans langue de bois, sa critique du système politique et des élites ont grandement contribué à en faire un personnage apprécié et très médiatisé. Mais qui se cache réellement derrière Jean-Marc Jancovici ? Dans cet épisode, on aborde bien évidemment les sujets qui lui tiennent à coeur, mais on va aussi au-delà, afin d’en savoir plus sur l’homme qui se cache derrière la cause. J’espère que cet épisode vous plaira, et je remercie Jean-Marc pour sa transparence et sa sincérité. Bonne écoute !
Le groupe d'électrolyseurs américain Plug Power prévoit la construction de trois usines d'hydrogène vert en Finlande, pour décarboner l'industrie tout en s'intégrant dans la "dorsale" européenne en cours de constitution autour de 31 opérateurs de réseaux de transport de gaz du Vieux Continent.
Machine learning is producing impressive results, and, for better or worse, researchers are now using it to address the climate crisis, writes Frederick Hewett.
A coal-fired power plant that had been mothballed has become the first of its kind to be put back on to the network in Germany, as debate rages over how Europe’s largest economy will cope without Russian gas. The facility in Lower Saxony, which is owned by the Czech energy company EGH, has received emergency permission to run until April in an attempt to boost energy production.
Climate change is reducing output and raising safety concerns at nuclear facilities from France to the US. But experts say adapting is possible—and necessary.
An all-electric future depends heavily on copper, and looming supply shortfalls could hamper nations’ goals of reaching net-zero emissions by 2050, according to a new report from S&P Global. Unless significant new supply becomes available, climate goals will be “short-circuited and remain out of reach,” the report says.
After all, Western economies – and their economic growth – depend utterly on labour and resources from the South...
There’s a simple way to unite everyone behind climate justice – and it’s within our power
Ember modelling of least-cost power system pathways reveals that a clean power system (70-80% wind and solar) by 2035 should be at the core of energy planning for a net-zero continent by mid-century.
Coal plants will be reactivated if Russian President Vladimir Putin threatens a gas cutoff, a government official said. That would trigger the second of a three-stage Germany’s gas emergency plan.
Long before the current political divide over climate change, and even before the U.S. Civil War (1861-1865), an American scientist named Eunice Foote documented the underlying cause of today’s climate change crisis. The year was 1856. Foote’s brief scientific paper was the first to describe the extraordinary power of carbon dioxide gas to absorb heat – the driving force of global warming. Carbon dioxide is an odorless, tasteless, transparent gas that forms when people burn fuels, including coal, oil, gasoline and wood.
The cost of decommissioning the UK’s seven ageing nuclear power stations has nearly doubled to £23.5bn and is likely to rise further, the public accounts committee has said. The soaring costs of safely decommissioning the advanced gas-cooled reactors (AGRs), including Dungeness B, Hunterston B and Hinkley B, are being loaded on to the taxpayer, their report said.
Ce plan vise à réduire la dépendance à l’égard des combustibles fossiles russes et accélérer la transition énergétique par une série d’actions suivant 4 axes :
Countries should move from coal to renewable energy without shifting to gas as a “transition” fuel to save money, as high gas prices and market volatility have made the fossil fuel an expensive option, analysis has found. Natural gas has long been touted as a “transition” fuel for economies dependent on coal for their power needs, as it has lower carbon dioxide emissions than coal but requires similar centralised infrastructure, and gas-fired power stations take only a couple of years to build. Earlier this year, before Russia invaded Ukraine, the European Commission angered green campaigners by including gas as a “bridge” to clean energy in its guidebook for green investment.
Center of Bicycle Technology Maya Pedal is a Guatemalan NGO based in San Andrés Itzapa. We accept bikes donated from the USA and Canada which we either recondition to sell, or we use the components to build a range of "Bicimaquinas", (pedal powered machines).
- Ifri
Le plan « REPowerEU » présenté début mars 2022 par la Commission européenne(1) vise à « rendre l'Europe indépendante des combustibles fossiles russes bien avant 2030 ». Il suppose entre autres « de multiplier au moins par 3 les capacités installées d’énergie solaire photovoltaïque et par 2,5 les capacités éoliennes » au niveau européen, souligne Susanne Nies(2) dans le « briefing » en anglais ci-après, publié le 12 avril par le Centre Énergie & Climat de l'Ifri.
They argue that balancing supply represents just a fraction of nuclear power’s potential contribution to decarbonisation.
When the lights went out at Chornobyl Nuclear Power Plant on 9 March, the Russian soldiers holding Ukrainian workers at gunpoint became the least of Anatolii Nosovskyi’s worries. More urgent was the possibility of a radiation accident at the decommissioned plant. If the plant’s emergency generators ran out of fuel, the ventilators that keep explosive hydrogen gas from building up inside a spent nuclear fuel repository would quit working, says Nosovskyi, director of the Institute for Safety Problems of Nuclear Power Plants (ISPNPP) in Kyiv. So would sensors and automated systems to suppress radioactive dust inside a concrete “sarcophagus” that holds the unsettled remains of Chornobyl’s Unit Four reactor, which melted down in the infamous 1986 accident.
Researchers have been able to cut their carbon footprint by jetting off to fewer international conferences, but physicists working on large-scale experiments may also have to consider the significant environmental impact of the computer power they require. Michael Allen investigates
As head of state-owned oil firm Rosneft, oligarch commands central place in the economy
Russia’s military offensive against Ukraine is an act of aggression that will make already worrisome tensions between Nato and Moscow even more dangerous. The west’s new cold war with Russia has turned hot. Vladimir Putin bears primary responsibility for this latest development, but Nato’s arrogant, tone‐deaf policy toward Russia over the past quarter‐century deserves a large share as well. Analysts committed to a US foreign policy of realism and restraint have warned for more than a quarter‐century that continuing to expand the most powerful military alliance in history toward another major power would not end well. The war in Ukraine provides definitive confirmation that it did not.
Momentum to phase out unabated coal use is growing globally. This transition is critical to meeting the Paris climate goals but can potentially lead to large amounts of stranded assets, especially in regions with newer and growing coal fleets. Here we combine plant-level data with a global integrated assessment model to quantify changes in global stranded asset risks from coal-fired power plants across regions and over time. With new plant proposals, cancellations, and retirements over the past five years, global net committed emissions in 2030 from existing and planned coal plants declined by 3.3 GtCO2 (25%). While these emissions are now roughly in line with initial Nationally Determined Contributions (NDCs) to the Paris Agreement, they remain far off track from longer-term climate goals. Progress made in 2021 towards no new coal can potentially avoid a 24% (503 GW) increase in capacity and a 55% ($520 billion) increase in stranded assets under 1.5 °C. Stranded asset risks fall disproportionately on emergin
L’EPR 2 est un projet de version « optimisée » du réacteur nucléaire EPR – ou réacteur pressurisé européen (initialement european pressurized reactor, renommé evolutionary power reactor) –, voulue plus simple et moins chère à construire que ce dernier.
Later this year, Egyptian engineering firm Arab Contractors is expected to complete the construction of the Julius Nyerere dam on the Rufiji River. Once completed, the $3 billion dam could be Africa’s fourth biggest by power production, producing up to 5920GWH of power annually, enabling Tanzania to close the gap between those with electricity and those who have no access.
In January of 2019, Chase Lochmiller and Cully Cavness, recently reunited prep school pals from Denver, drove out to the snow-covered plains of Wyoming to bring a piece of tech culture to the American heartland. Trembling in -20F (-29C) temperatures, they wired up a prototype of their brainchild: a machine that harnesses the “waste gas” from oil rigs to power mining for cryptocurrency.
Suite à l’occupation du siège Ecolo/Groen, nous avons obtenu une rencontre le 12/10 avec la Ministre du climat Zakia Khattabi. Nos revendications étaient notamment d’obtenir la remise en question de la construction de nouvelles centrales à gaz. la confirmation de la sortie du nucléaire en 2025 et un moratoire sur d'autres projets nuisibles et inutiles.
- Hln
Leden van het collectief Tegengas bezetten sinds 10 uur de hoofdzetel van Groen en Ecolo in Brussel. Een dag na de grote klimaatmars vragen de activisten dat de daad bij het woord gevoegd wordt. “Meelopen in de klimaatmars betekent kiezen voor een 100 procent duurzame toekomst.”
- Lavenir
Le siège d’Écolo/Groen est occupé au lendemain de la manif pour le climat. Une coalition d’associations met ainsi la pression sur les verts pour qu’ils «joignent le geste à la parole». Dans leur viseur: centrales au gaz et aéroports, entre autres.
Leden van het collectief Tegengas bezetten sinds maandagochtend 10 uur de hoofdzetel van Groen en Ecolo in de Van Orleystraat in Brussel. Een dag na de grote klimaatmars vragen de activisten dat de daad bij het woord gevoegd wordt en keren ze zich met name tegen het subsidiemechanisme voor gascentrales.
Depuis 10 heures ce matin, un groupe de 30 activistes climatiques et des membres de collectifs citoyens occupent le siège de Ecolo/Groen à Bruxelles, selon un communiqué. Ces activistes exigent l’annulation du mécanisme de subventionnement des centrales à gaz fossiles et que les deux partis soutiennent pleinement et inconditionnellement la sortie du nucléaire en 2025.
Convergence de mouvements citoyens et de groupes d’activistes réuni.e.s par nos luttes contre des (méga)projets et les entreprises inutiles et nuisibles qui menacent partout, en Belgique et ailleurs, la nature, l’agriculture, le climat, les droits des travailleurs et des travailleuses, et notre santé.
Pour l'organisation People Power Bloc, la présence des deux partis écologistes belges à la marche est insignifiante si des actes concrets ne sont pas posés. C'est pourquoi environ 30 activistes ont décidé d'occuper le siège des deux partis, situé rue Van Orley à Bruxelles, ce lundi matin.
La mise au point est donc claire en ce qui concerne le plan Gaz de la ministre Tinne van der Straeten (Groen), mais également quant à la politique fédérale climat défendue par la ministre Zakia Khattabi (Ecolo).
convergence de mouvements citoyens et de groupes d'activistes réuni.e.s par nos luttes contre des (méga)projets et les entreprises inutiles et nuisibles qui menacent partout, en Belgique et ailleurs, la nature, l'agriculture, le climat et notre santé. Nous appelons à rejoindre le bloc "People Power" lors de la marche climat du 10 octobre pour y affirmer que ne pouvons plus nous contenter de recommandations consensuelles et de plaidoyers institutionnels. Nous ne pouvons plus nous satisfaire des "rehaussements d'ambitions" et des objectifs abstraits en matière de CO2.
How close is nuclear fusion to break-even? If you trust the headlines we're getting close and the international project ITER is going to be the first to produce energy from fusion power. But not so fast. Scientists have, accidentally or deliberately, come to use a very misleading quantity to measure their progress. Unfortunately we're much farther away from generating fusion power than the headlines suggest. "Donc, si tout va bien, l'EROEI d'ITER sera de 0,4 ou 0,5 pour 1 - encore plus minable qu'un biocarburant basé sur les algues. " - Philippe Gauthier
The U.S. nuclear power regulator last month suspended the shipment of radioactive materials and a hydrogen isotope used in reactors to China's largest state-owned nuclear company, CGN, reflecting Washington's concerns about the country's buildup of atomic weapons.
analysts including Ting Lu warned in a note, predicting China’s economy will shrink this quarter. Article assez incroyable sur les pénuries d'électricité en Chine.
Le géant du cuivre polonais KGHM et l'américain NuScale Power ont signé un mémorandum d'accord sur le développement et la construction, d'ici 2030, d'au moins quatre petits réacteurs nucléaires SMR, une première en Pologne, pays dépendant du charbon pour sa production d'électricité, selon un communiqué jeudi.
On pourrait croire qu’après les alertes accrues des scientifiques quand à l’agenda climatique, cette thématique occuperait une place centrale, sinon pour l’ensemble des forces politiques, au moins pour celle qui donne si souvent des leçons aux autres quand on parle d’environnement.
Global greenhouse gas emissions must peak in the next four years, coal and gas-fired power plants must close in the next decade and lifestyle and behavioural changes will be needed to avoid climate breakdown, according to the leaked draft of a report from the world’s leading authority on climate science.
Lake Oroville’s water level has fallen so low that on Thursday, for the first time since the dam was built in 1967, its power plant was shut down because there is no longer enough water to spin the turbines and generate electricity.Last Friday, hoping to avert any more power shutdowns, Gov. Gavin Newsom issued an emergency order that temporarily waives some air pollution rules to allow natural gas power plants to generate more electricity and pays industries $2 a kilowatt-hour to reduce their electricity use during heat waves.
Deforestation increased faster around newly built roads and dams, as well in areas better connected to consumer markets. Between 1988 and 2004, an average of 20,000km² of forest was cut each year.By the end of the 2000s, the amount of deforestation had substantially declined, reaching its lowest point of 4,571km² in 2012.
the sediments below oxygen-depleted waters are a significant source of nitrous oxide (N2O). This gas is released into the atmosphere when deep water rises to the surface in a process known as upwelling. Nitrous oxide, more commonly known as “laughing gas,” is a potent greenhouse gas, 300 times more powerful than carbon dioxide. Global emissions of N2O are increasing as a result of human activities that stimulate its production.
Maine just became the first state to require the divestment of its state pension system from the fossil fuel industry by 2026. Though several other states and cities have taken measures towards divestment in recent years, Maine is the first state to require divestment by law.
Richard Powers, l'un des plus grands écrivains américains, publie une fresque splendide, L'Arbre-Monde, dont les héros sont des arbres menacés par la volonté de destruction humaine. Le roman aura amené son auteur à quitter la ville pour répondre à l'appel de la forêt.