The FAA says that by 2018, as NextGen is rolled out around the U.S., the new system will reduce flight delays 35% to 40% and save almost a billion gallons of fuel.

联邦航空管理局表示，到2018年次世代在美国全面运行时，新系统会减少35%到40%的飞行延误，同时省下将近十亿加仑燃料。

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The average American flushes the toilet five times a day, the author says, using 18.5 gallons of water.

平均每个美国人每天冲五次厕所，作者写道，用掉18.5加仑的水。

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"Every one percent increase in soil carbon holds an additional 60, 000 gallons of water per acre," says Apfelbaum. "water infiltrates the ground and replenishes groundwater sources."

“每英亩土壤的固碳率增加百分之一，就能多带来6万加仑的水，”阿普费鲍姆说，“这些水渗入地下，补充了地下水的储量。”

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No port would have agreed to accept a boat that was threatening to spill millions of gallons of fuel, he says.

BBC: Analysis: Salvaging the Prestige

Compared with trucks, each train uses 100, 000 fewer gallons of diesel fuel, Pollak says.

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"This is a mixing vat that contains about 3, 000 pounds of mash and 1, 400 gallons of vinegar, " he says.

NPR: TABASCO's Hot History