Futuroptimist

Futuroptimist t1_j0rf5x5 wrote

Reply to comment by dystropy in The IEA says humanity used the greatest amount of coal in 2022 in all of human history, and that this level of consumption will continue until at least 2025. One-third of all global coal goes to generate electricity in China, and India's coal use is growing at 6% per annum. by lughnasadh

Thats nice, but how does this help when they still emitt more CO2 than last year and the year before?

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Futuroptimist t1_ista50f wrote

Reply to Question: can hydrogen replace gas piped to homes for cooking and heating? by BW6611

Hydrogen is tricky gas: it can diffuse into steel making it brittle. In the past the ammonia plants blew up regularly because of this. Although with smaller pressure it shouldn’t be that big of a problem. Gas burners need to be modified or changed to be able to burn efficiently H2. AFAIK now the new gas stoves and heaters can burn a 10% H2 mix with regular gas. Making a fuel cell at home? Probably it wouldn’t be energy efficient compared to just transmitting electricity. But a fuel cell car would be more usable this way.

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