Shelly Banjo, Columnist

Celebrate Electric Vehicles, Soberly

China's move away from fossil fuels won't be in a straight line.
Qilai Shen/Bloomberg
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Cue the buzzkill.

China's plan to set a deadline for automakers to halt sales of fossil-fuel-powered vehicles sent shares soaring for electric-car makers including BYD Co., backed by Warren Buffett, and BAIC Motor Corp. Let's not get ahead of ourselves.