We’ve been hearing a lot more about hydrogen these days. Green, blue, grey… it can be confusing to understand what these different terms actually mean.
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Fanatics claim hydrogen is essentially an unlimited and carbon-neutral resource, while critics say it’s neither efficient nor green enough – and too expensive.
The important thing to remember is that not all “colours” of hydrogen are equal – different forms of hydrogen extraction produce different amounts of emissions.
Here’s a quick and basic guide, which we believe are in order of most harmful to least harmful. Keep this on hand the next time someone brings up hydrogen at a dinner party… read more