Did I write about hydrogen economy problems okay...?

Question

Do you think that I answered the following question

"Even if methods for producing hydrogen cheaply and in large quantities become available, what problems still remain for the hydrogen economy?" okay...correct statements, etc??

B. Despite the availability of methods to produce hydrogen inexpensively and in large qualities, there will still be problems remaining. One of the problems that may remain for the hydrogen economy is being able to store H2 safely in vehicles. Also, there would be a need for safely operating refueling stations for these vehicles. Because of the explosiveness that results from hydrogen coming into contact with O2 and a spark, these are very important safely needs for the hydrogen community. Furthermore, the tanks that vehicles would need to carry in order to have H2 could be considerably larger compared to the gas tanks on the vehicles we know today.

Answer 1

hydrogen is safer then propane.

when propane leaks out it drops to form a cloud over the ground  because it is heavier then air.

hydrogen rises rapidly and disipates.

http://policy.rutgers.edu/CEEEP/newhome/...

http://www.planetark.org/dailynewsstory....

http://www.recoverybydiscovery.com/hydro...

Answer 2

These will help..an article on hyrdrogen economy and safe form of hydrogen which could be used as fuel and how it be obtained and used!

http://www.sciencedaily.com/releases/200...

http://www.sciencedaily.com/releases/200...