...AND CHEAPER...:

Researchers looked at the Delhi government's work to electrify the city's bus fleet and found that a 100 percent switch to EVs would have numerous benefits. For one, maintaining an all-electric fleet is cheaper. Even better, public health would improve. Less air pollution could mean 1,300 fewer deaths and 2,800 fewer hospitalizations each year -- which, the researchers said, would save $383 million.

The shift is already underway: 150 electric buses rolled onto Delhi's streets in May, and the goal is to have 80 percent of the fleet be rechargeable by 2025.

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