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The lightest element on the periodic table could soon be used to power the heaviest of engines.

What’s happening: Caterpillar, BNSF Railway and Chevron on Tuesday announced a plan to develop a hydrogen-powered locomotive system.

United Airlines on Monday secured the right to buy up to 100 hydrogen engines for its aircraft.

Why it matters: Transportation represents the largest share of U.S. greenhouse gas emissions, which contribute to climate change.

Yes, but: Producing hydrogen isn't always environmentally friendly, as fossil fuels are often used to make it.

Details: Caterpillar’s Progress Rail will develop a hydrogen rail system, Chevron will deliver the fueling setup, and BNSF will demonstrate the technology once it's ready.

United invested in ZeroAvia's hydrogen-electric jet engine, which the airline said, “could be retrofit to existing United Express aircraft as early as 2028.”

Caterpillar, BNSF Railway, Chevron pursue hydrogen-powered locomotive

Hydrogen

Transportation

The lightest element on the periodic table could soon be used to power the heaviest of engines.What’s happening: Caterpillar, BNSF Railway and Chevron on Tuesday announced a plan to develop a hydrogen-powered locomotive system.

Ominous forecasts about the impact of climate change serve as the backdrop for the world — led by U.S. lawmakers and companies — to debate big action on the problem, which could upend energy systems and our way of life.

Energy & Environment

After a record economic expansion, the coronavirus pandemic sent the U.S. economy into a recession as unemployment soared to staggering heights. The country now faces urgent questions about how much stimulus is needed for reeling consumers and businesses, and what a recovery might look like.

Caterpillar, BNSF Railway, Chevron pursue hydrogen-powered locomotive

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