Jean Jouzel

Current energy projections often envision an expansion of nuclear capacities to decarbonize future energy systems. However, this contrasts with the historic and current status of the nuclear industry, marked by techno-economic challenges for both light-water and non-light-water reactor technologies. Regardless, projections of strong nuclear growth have persisted since the 1970s. This paper investigates the “nuclear energy paradox” which shows the recurring divergence between historical projections and actual developments. A data compilation of long-term energy projections from international organizations such as the IAEA and the IEA as well as energy system models like GCAM and MESSAGE, as used in the IPCC, reveal a recurring pattern of high-growth projections for nuclear power. Such projections often rest on techno-economic assumptions such as substantial cost reductions. We propose the concept of nuclear imaginaries to show that these assumptions are embedded into techno-economic visions of nuclear power de

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

Arthur Keller expert en risques systémiques et strategies de resilience présente les conclusions alarmantes du Shift Project et de Rystad Energy sur notre avenir énergétique. Le pétrole abondant qui a structure nos villes et notre économie mondiale entre dans une phase de déclin irreversible. Avec un taux de remplacement de seulement seize pour cent chaque baril découvert cache six barils consommes. L’Union européenne fait face a un mur d’approvisionnement des deux mille trente qui imposera des renoncements majeurs. Nous quittons l’ère du toujours plus pour entrer dans l’ère du moins.

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.

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.