Les navires de charge assistés par le vent pourraient réduire leurs émissions de moitié grâce à des itinéraires optimisés

19 mai 2026

Rapporté par l'IA

Selon des chercheurs, les navires de charge équipés de systèmes de propulsion éolienne pourraient réduire leur consommation d'énergie de 50 à 100 pour cent s'ils ajustaient leurs itinéraires et leurs vitesses afin de tirer pleinement parti des vents favorables.

Le secteur du transport maritime représente environ 3 pour cent des émissions mondiales de dioxyde de carbone, une part qui continue d'augmenter. L'ajout de technologies telles que des voiles rigides, des cylindres rotatifs et des cerfs-volants géants suscite déjà l'intérêt des entreprises cherchant à réduire leurs coûts de carburant. Une nouvelle étude montre que des gains encore plus importants sont possibles lorsque les navires font également varier leurs trajectoires et leurs vitesses pour maximiser l'assistance du vent tout en respectant des délais de livraison réalistes.

Articles connexes

Illustration of Germany's minimal 2025 CO2 emissions decline, Minister Schneider presenting data amid opposition protests warning of EU fines.

Germany's 2025 climate balance shows stagnant emissions decline

14 mars 2026 Rapporté par l'IA Image générée par IA

Germany's greenhouse gas emissions fell by just 0.1 percent in 2025 to 649 million tons of CO₂ equivalents, marking the smallest decline in four years. Opposition parties Greens and Left criticize the federal government for shortcomings and warn of EU fines in billions. Environment Minister Carsten Schneider highlights progress but calls for a push.

Trump opposes carbon tax on shipping but faces resistance

The Trump administration has threatened countries supporting a proposed carbon tax on global shipping with visa restrictions, tariffs, and port fees. Despite this pressure, a slim majority of nations backed the original Net-Zero Framework at a recent U.N. meeting.

Circular economy can address half of global emissions

24 février 2026 Rapporté par l'IA

While renewable energy targets about 55% of greenhouse gas emissions, the circular economy tackles the remaining 45% from material production and use. This approach replaces the linear take-make-waste model with strategies to design out waste, extend product life, and restore natural systems. Reports suggest it could reduce emissions by billions of tons annually across key sectors.

Technologie

Seven innovations improve energy storage and transmission

Technologie

Apple and Amazon push for looser greenhouse gas reporting rules

Science

Cleaning up air pollution could weaken vital AMOC ocean current

Louisiana LNG terminal poised to be US's top emitter

A massive LNG export terminal under construction near Lake Charles, Louisiana, is projected to produce more greenhouse gas emissions than any other in the United States. Owned by Woodside Energy, the facility is expected to release over 9.5 million tons annually once operational in 2029. The project has drawn praise for jobs and investment but criticism for worsening climate risks in a vulnerable state.

Chinese researchers propose wave-powered USVs for distant sea patrols

16 mai 2026 Rapporté par l'IA

Two Chinese researchers have recommended the use of wave-powered autonomous vessels for long-term maritime patrols and monitoring in distant waters including the South China Sea.

dimanche 10 mai 2026 04h04