Flux continu

António Guterres says ‘sun is rising on a clean energy age’ as 90% of renewable power projects cheaper than fossil fuels

Despite working on polar science for the British Antarctic Survey for 20 years, Louise Sime finds the magnitude of potential sea-level rise hard to comprehend

Identifying the socio-economic drivers behind greenhouse gas emissions is crucial to design mitigation policies. Existing studies predominantly analyze short-term CO2 emissions from fossil fuels, neglecting long-term trends and other GHGs. We examine the drivers of all greenhouse gas emissions between 1820–2050 globally and regionally. The Industrial Revolution triggered sustained emission growth worldwide—initially through fossil fuel use in industrialized economies but also as a result of agricultural expansion and deforestation. Globally, technological innovation and energy mix changes prevented 31 (17–42) Gt CO2e emissions over two centuries. Yet these gains were dwarfed by 81 (64–97) Gt CO2e resulting from economic expansion, with regional drivers diverging sharply: population growth dominated in Latin America and Sub-Saharan Africa, while rising affluence was the main driver of emissions elsewhere. Meeting climate targets now requires the carbon intensity of GDP to decline 3 times faster than the global

We develop roadmaps to transform the all-purpose energy infrastructures (electricity, transportation, heating/cooling, industry, agriculture/forestry/fishing) of 139 countries to ones powered by wind, water, and sunlight (WWS). The roadmaps envision 80% conversion by 2030 and 100% by 2050. WWS not only replaces business-as-usual (BAU) power, but also reduces it ∼42.5% because the work: energy ratio of WWS electricity exceeds that of combustion (23.0%), WWS requires no mining, transporting, or processing of fuels (12.6%), and WWS end-use efficiency is assumed to exceed that of BAU (6.9%). Converting may create ∼24.3 million more permanent, full-time jobs than jobs lost. It may avoid ∼4.6 million/year premature air-pollution deaths today and ∼3.5 million/year in 2050; ∼$22.8 trillion/year (12.7 ¢/kWh-BAU-all-energy) in 2050 air-pollution costs; and ∼$28.5 trillion/year (15.8 ¢/kWh-BAU-all-energy) in 2050 climate costs. Transitioning should also stabilize energy prices because fuel costs are zero, reduce power d

Dans le cadre de la transition énergétique, l’aviation se tourne vers des e-fuels nécessitant des volumes importants d’électricité bas carbone pour être produits. Or, cette électricité est bien moins taxée que l’électricité destinée à des besoins « primaires », tels que le chauffage ou l'éclairage, comme le détaille mon étude publiée dans Climate Policy(1).

The world’s addiction to fossil fuels is a “Frankenstein’s monster sparing nothing and no one”, the UN secretary general, António Guterres, told leaders at the World Economic Forum in Davos on Wednesday. “Our fossil fuel addiction is a Frankenstein’s monster, sparing nothing and no one. All around us, we see clear signs that the monster has become master,”

It’s better to burn out than fade away…until it kills you.

The net zero approach of the Paris agreement has become detached from reality as it increasingly relies on science fiction levels of speculative technology.

Le plus gros parti au Parlement européen désire revoir la mesure concernant l'interdiction des moteurs thermiques dès 2035.

World’s fossil-fuel producers on track to nearly quadruple output from newly approved projects by decade’s end, report finds

At a time when we need to shift our collective climate action up a gear, the influence of the fossil fuels lobby is succeeding in slowing down ambition both at COP27 and in the EU.

New path to transition away from fossil fuels marred by lack of finance and loopholes COP28 in Dubai sends an important signal on the end of fossil fuels but leaves more questions than answers on how to ensure a fair and funded transition that is based on science and equity

Exclusive: UAE’s Sultan Al Jaber says phase-out of coal, oil and gas would take world ‘back into caves’

Les carburants de synthèse constituent des solutions de substitution, fongibles dans le système énergétique, pour décarboner les secteurs sans alternatives. Ces e-fuels sont un complément nécessaire dans la boite à outils européenne pour atteindre les objectifs climatiques à court, moyen et long terme.

La réduction des émissions industrielles et des transports passe par le développement de carburants non-fossiles de synthèse: pour promouvoir les projets de production de ces électro-carburants, des acteurs de la filière ont annoncé mardi la création d'un "Bureau français des e-fuels".Ce Bureau vise à promouvoir une "filière française d'e-fuels, vertueuse, compétitive et durable" auprès des acteurs publics et privés afin d'encourager les projets et à réunir experts, universitaires, industriels et financiers sur le sujet, indiquent-ils dans un communiqué.

Hundreds of students and graduates vow not to work for ‘climate wreckers that insure those responsible for the climate crisis’

En offrant une alternative plus propre aux carburants fossiles, ces e-fuels pourraient servir la cause de la transition énergétique.

L'Union européenne a validé lundi la fin des moteurs à essence et diesel dans les voitures neuves à partir de 2035, mais les libéraux allemands ont obtenu qu'on ouvre la voie aux carburants de synthèse, auxquels croient des constructeurs comme Porsche ou Ferrari. Ces carburants sont pourtant encore très rares, énergivores et polluants.Comment sont produits les "e-fuels"? Les carburants de synthèse (ou "e-fuels") sont pour la plupart produits en combinant de l'hydrogène et du CO2.

Pie-in-the-sky fantasies of carbon capture and geoengineering are a way for decision-makers to delay taking real action

Fossil fuel companies that want a free pass to keep pumping oil and gas are making wildly unrealistic promises about 'capturing' their emissions at sites of pollution, or removing them from the atmosphere at later date. But the science says drastic emission cuts are needed now if we are to stay within 1.5ºC warming. Thus ‘net zero’ policies are in reality 'not zero', and effectively guarantee that we’ll overshoot 1.5ºC, triggering catastrophic climate impacts which we have no reason to believe can be reversed by speculative and unproven ‘carbon removal’ technologies.