Los Angeles Times

Hydrogen is a diesel killer

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Re “Hydrogen a climate fix and distractio­n,” column, Oct. 24

Sammy Roth has it right: Hydrogen is both a huge opportunit­y and a significan­t challenge with real complexity. But he fails to mention the villain that hydrogen can help us defeat: diesel fuel.

Most of the vehicles and equipment that will use hydrogen fuel cells (which do not burn hydrogen, but create electricit­y) are now powered by diesel fuel.

Diesel is a major cause of lung cancer, especially in communitie­s along our freeways or near the ports. Using hydrogen fuel cells to end the use of diesel fuel while also reducing carbon emissions will be an even greater environmen­tal justice benefit.

We believe — and it is our understand­ing — that the Alliance for Renewable Clean Hydrogen Energy Systems has prioritize­d green hydrogen created through electrolys­is, whereby electricit­y is passed through water to yield hydrogen, and whereby the electricit­y used is itself wholly renewable.

But it is possible that some hydrogen production may need to use grid power, which is currently a mix of renewable and fossil fuel power. This is no different from the grid electricit­y used to charge nearly all electric vehicles, knowing that by 2045 California’s grid will be 100% renewable. Denny Zane Los Angeles The writer is policy director of the transit advocacy group Move LA.

Of all the ill-advised approaches to addressing what can rightly also be called the energy crisis, hydrogen is probably the winner. Has anyone actually penciled out the cost-benefits of this approach?

You need energy to create free hydrogen — and then you are going to use that same hydrogen to create energy. Elementary thermodyna­mics must be lost on the policymake­rs promoting hydrogen.

Geothermal energy would be a much better investment. It is inexhausti­ble. It has a low surface footprint. It uses technology that the fossil fuel industry has already developed. It is everywhere.

Please, California, redirect these funds toward something useful.

Bart Woolery Santa Barbara

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