Water vapour, although present only in small amounts in the atmosphere, is a much stronger greenhouse gas than CO2. Many say that the solution to global warming lies in the use, especially in vehicles, of hydrogen fuel cells, which emit only water vapour. If this water vapour is not forcibly condensed, at the expense of more energy, before being emitted, is it not likely that, in the long run, say 50 years later, be in itself a cause of climate change. Even if the water vapour condenses in the atmosphere and falls as rain, would it not increase global rainfall? Also, what is the truth about suggestions that hydrogen fuel cells emit dangerous levels of hydrogen peroxide, and if so, how may this affect global climate and/or human health?
2007-04-22
21:29:07
·
10 answers
·
asked by
My Nickname I don't know !!!
3