phasing out fossil fuels; decarbonization; moving away from fossil fuels
A policy or societal shift away from reliance on coal, oil, and natural gas. Often used in environmental and energy contexts.
The government announced a new plan for phasing out fossil fuels.
The move away from fossil fuels is accelerating worldwide.
Compound of 脱 (だつ, 'de-', 'escape from') + 化石燃料 (かせきねんりょう, 'fossil fuels'). A modern term reflecting environmental policy discourse.