The Sierra Club posted an article on January 5, 2022 stating its policy regarding the usage of hydrogen technologies.  Below are the first three paragraphs of that article. A link to the full article is located here:

The fossil fuel industry is hyping hydrogen of all kinds as a low-carbon replacement for all sorts of uses of fossil fuels—from powering vehicles and heavy industry to heating buildings. In reality, many hydrogen projects will only lock us in to continued fossil fuel use and additional investments in fossil fuel infrastructure.

The Sierra Club only supports the use of green hydrogen—hydrogen made through electrolysis that is powered by renewable energy. Even in the case of green hydrogen, other conditions must be met for its use to be a good idea:

1. Green hydrogen is a promising solution only for uses that cannot otherwise directly rely on clean electricity, which is much more efficient.

2. Green hydrogen should not be used to justify a buildout of facilities that otherwise increase pollution or fossil fuel use.

3. If green hydrogen is being used, the goal should be to switch to 100 percent green hydrogen once the technology is available. We should not support projects that label themselves as “sustainable” because their fuel source includes a small fraction of hydrogen when the lion’s share of it is fracked gas.