中学生英语演讲稿-thegreatrace第2页
buy..tothem,itisourpenchantforgas-guzzlingortsutilityvehiclesthatisdangerous,wastefulandsuddenlyuatriotic.
hydrogensourcesandsulyinfrastructure
hydrogenisabundant,buttherearesulyproblems.hydrogenisalmost
neverfoundinitspureform.itisalreadycombinedwithotherelements
toformwateroranynumberoforganiccompounds.togetpurehydrogen,
youhavetoseparateitfromsomething.inthecaseofwater,theproce
iscalledelectrolysis.inhydrocarbonfuels,itiscalledreformation.
althoughhydrogenhasbeensuccefullyreformedfromallmajorfuels,
industrialalicatioforhydrogentodaygenerallyrelyonreformingit
fromnaturalgas.thistechniquecanatbestbeashort-termsolutionif
thegoalistobeindependentfromfoilfuels.othersourcesofhydrogen
includeglucose,sodiumborohydrideandevenbacterialcomposting.notall
ofthesewillmakethecut.renewabilityisakeyiue.themoney,time
andefforttoturngtasfillingstatio,hydrogenfillingstatiois
mindandbudget-boggling.
theotherproblemissulyinfrastructure.themoney,timeandeffortto
turngasfillingstatio.thereiscoiderablementalenergygoinginto
solvingtheseproblems,buttheywillnotbeso;vedquicklyorcheaply.at
leastibelieve.