Réseau Transition be

En conditionnant l'aide internationale à l'agenda conservateur, l'administration américaine sacrifie la santé des populations les plus vulnérables au profit d'une guerre culturelle globale. Un nouveau soft power de la coercition.

Les stars sont de plus en plus nombreuses à s’insurger et les vacanciers à boycotter la destination… Le pays voit son soft power vaciller, abîmé par les outrances de Trump et l’ultraviolence des agents de l’ICE.

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

Il y a peu, la Commission de réglementation nucléaire (NRC) aux États-Unis a donné son accord pour la poursuite du projet Natrium de la société TerraPower. Cette société recevant le soutien de Bill Gates va pouvoir débuter la construction de la première unité de sa centrale à Kemmerer, dans l’état du Wyoming. Pour certains scientifiques, cette approbation arrive trop rapidement.

Much of today's sustainability discourse emphasizes efficiency, clean technologies, and smart systems, but largely underestimates fundamental physical constraints relating to energy-matter interactions. These constraints stem from the fact that Earth is a materially closed yet energetically open system, driven by the sustained but low power-density flux of solar radiation. This Perspective reframes sustainability within these axiomatic limits, integrating relevant timescales and orders of magnitude. We argue that fossil-fueled industrial metabolism is inherently incompatible with long-term viability, while post-fossil systems are surface-, materials-, and power-intensive. Long-term sustainability must therefore be defined not only by how much energy or material is used, but also by how it is used: favoring organic, carbon-based chemistry with limited reliance on purified metals, operating at low power density, and maintaining low throughput rates. Achieving this requires radical technological shifts toward l

For the first 300,000 years of human history, hunter-gathering Homo sapiens lived in fluid, egalitarian civilizations that thwarted any individual or group from ruling permanently. Then, around 12,000 years ago, that began to change.

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.

A new report draws on internal company documents and other public records to comprehensively outline the fossil fuel industry’s decades-long campaign to mislead the public and avoid paying for their products’ harms.

Researchers say Aardvark Weather uses thousands of times less computing power and is much faster than current systemsA single researcher with a desktop computer will be able to deliver accurate weather forecasts using a new AI weather prediction approach that is tens of times faster and uses thousands of times less computing power than conventional systems.

That’s now how separation of powers works under the U.S. Constitution.

En Bretagne sur plusieurs plages, une association a collecté des milliers de "powerchips green". De quoi s'agit-il exactement ?

Author Adam Greenfield demonstrates the power of mutual aid and community networks, but they lack to power to fundamentally change societyIn his book Lifehouse, Adam Greenfield shows that ordinary people are capable of organising themselves and running their own lives even in the most difficult circumstances.

A new study suggests that the Gulf Stream was stronger during the last ice age due to more powerful winds, indicating that future changes in wind patterns could weaken the Gulf Stream, affecting European climate and North American sea levels. This research enhances our understanding of the Atlantic Meridional Overturning Circulation (AMOC) and its vulnerability to climate change.

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

In 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.

Named one of the “world’s ten most influential intellectuals” by MIT, Douglas Rushkoff is an author and documentarian who studies human autonomy in a digital age. Rushkoff’s work explores how different technological environments change our relationship to narrative, money, power, and one another. He coined such concepts as “viral media,” “screenagers,” and “social currency,” and has been a leading voice for applying digital media toward social and economic justice. In the conversation we talk about the power of ideas, our disconnection from reality, going meta, ancestral fears, tech billionaires mindset and how they are preparing for the apocalypse. We also reflect on the urgent need to be more human and reconnect with what is essential.

Machine learning is producing impressive results, and, for better or worse, researchers are now using it to address the climate crisis, writes Frederick Hewett.

“Combustion is the problem – when you’re continuing to burn something, that’s not solving the problem,” says Prof Mark Jacobson. The Stanford University academic has a compelling pitch: the world can rapidly get 100% of its energy from renewable sources with, as the title of his new book says, “no miracles needed”. Wind, water and solar can provide plentiful and cheap power, he argues, ending the carbon emissions driving the climate crisis, slashing deadly air pollution and ensuring energy security. Carbon capture and storage, biofuels, new nuclear and other technologies are expensive wastes of time, he argues.

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).

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.