Japanese homemaker Maki Watanabe carefully pours into a plastic bottle the oil she used to cook her deep-fried eggplant, doing her part in her Tokyo kitchen for a national effort to ramp up production of eco-friendly jet fuel. Her contribution is pooled at a nearby supermarket that is among roughly 300 participants in a public-private project dubbed “Fry to Fly”, as the Iran war squeezes energy supply and raises costs for the resource-poor country.
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