4 ms·

And if the ship sinks I guess hydrogen pollutes less than oil ?

by wiz21c 5y ago

eloff 5y ago
Sure, but it's not a big concern as it's not that common.
- eloff 5y ago
  To the person who disagrees - compared to climate change, it's the least of our worries. No oil spills beats a few oil spills - but these are not an Exxon Valdez sized event, and they don't really matter in the grand scheme of things.
ivalm 5y ago
Maybe ever so slightly acidifies water + escapes atmosphere; I don’t think there is real hydrogen spill pollution.
scatters 5y ago
The hydrogen goes up. Most of it will be in space in an hour or two. Any that doesn't will react with atmospheric oxygen to produce water vapor.
WorldMaker 5y ago
By a lot, mostly. The liquid hydrogen eventually doesn't have enough pressure/cold enough temperature to stay liquid so it turns back to gas and most bubbles out of the water (with some of it reacting with Oxygen and becoming more water). It's possible if it were a "big enough" and "concentrated enough" spill it might briefly create anoxic zones where fish will die. https://en.wikipedia.org/wiki/Anoxic_waters https://en.wikipedia.org/wiki/Anoxic_waters (But humans and dumb algae accidentally do that "all the time" and the ocean does have recovery methods from anoxic waters. It's not great for the climate or the ocean, but it is mostly survivable and much more "temporary" problem than the long term effects of oil pollution.)
- wglb 5y ago
  It is also a greenhouse gas http://agage.mit.edu/publications/global-environmental-impacts-hydrogen-economy http://agage.mit.edu/publications/global-environmental-impac...
  - cmrdporcupine 5y ago
    "If a global hydrogen economy replaced the current fossil fuel-based energy system and exhibited a leakage rate of 1%, then it would produce a climate impact of 0.6% of the current fossil fuel based system. " That doesn't sound so ... bad?

4 ms·

And if the ship sinks I guess hydrogen pollutes less than oil ?

by wiz21c 5y ago

And if the ship sinks I guess hydrogen pollutes less than oil ?

eloff 5y ago
Sure, but it's not a big concern as it's not that common.
- eloff 5y ago
  To the person who disagrees - compared to climate change, it's the least of our worries. No oil spills beats a few oil spills - but these are not an Exxon Valdez sized event, and they don't really matter in the grand scheme of things.
ivalm 5y ago
Maybe ever so slightly acidifies water + escapes atmosphere; I don’t think there is real hydrogen spill pollution.
scatters 5y ago
The hydrogen goes up. Most of it will be in space in an hour or two. Any that doesn't will react with atmospheric oxygen to produce water vapor.
WorldMaker 5y ago
By a lot, mostly. The liquid hydrogen eventually doesn't have enough pressure/cold enough temperature to stay liquid so it turns back to gas and most bubbles out of the water (with some of it reacting with Oxygen and becoming more water). It's possible if it were a "big enough" and "concentrated enough" spill it might briefly create anoxic zones where fish will die. https://en.wikipedia.org/wiki/Anoxic_waters https://en.wikipedia.org/wiki/Anoxic_waters (But humans and dumb algae accidentally do that "all the time" and the ocean does have recovery methods from anoxic waters. It's not great for the climate or the ocean, but it is mostly survivable and much more "temporary" problem than the long term effects of oil pollution.)
- wglb 5y ago
  It is also a greenhouse gas http://agage.mit.edu/publications/global-environmental-impacts-hydrogen-economy http://agage.mit.edu/publications/global-environmental-impac...
  - cmrdporcupine 5y ago
    "If a global hydrogen economy replaced the current fossil fuel-based energy system and exhibited a leakage rate of 1%, then it would produce a climate impact of 0.6% of the current fossil fuel based system. " That doesn't sound so ... bad?