Hydrogen's main selling point is that it's faster to fill a tank with the stuff than it is to recharge a lithium-ion battery. So it's a seductive alternative that suggests a driver can keep all the convenience of their gasoline engine with none of the climate change-causing side effects. But in reality, that's pretty far from true.

The Jeep parent said it would discontinue its hydrogen fuel-cell technology development program because it doesn’t expect its adoption in light commercial vehicles before the end of the decade.

Stellantis said it would end efforts to develop hydrogen vehicles as it focuses its resources on electric cars and hybrids to meet EU’s tougher emissions standards.