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Energy - AUGUST 13, 2021

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‘Blue’ hydrogen may be worse for climate than gas or coal

by Andrea Zander

Researchers at Cornell University and Stanford University have claimed so-called blue hydrogen could potentially be 20 percent worse for the climate than burning natural gas or coal for heat, according to a paper published in the Energy Science and Engineering Journal. The greenhouse gas footprint of blue hydrogen is more than 20 percent greater than burning natural gas or coal for heat and some 60 percent greater than burning diesel oil for heat, with the researchers’ default assumptions. The researchers claim the use of blue hydrogen appears difficult to justify on climate grounds.

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