Of the population, 15.7% live in a semi-arid/ steppe climate (BS), 9.1% live in a arid/ desert climate (BW), 6.2% live in a temperate/ mesothermal climate with significant precipitation in all seasons (Cf), 53.2% live in a temperate/ mesothermal climate with dry summers (Cs), 0% live in a polar climate (E), 15.8% live in a alpine/ highland climate ( ...
Gasoline is also an extremely flammable fuel, and one that does not escape like hydrogen.. The hydrogen fuel cell tanks in the Toyota Mirai are pressurized up to 10,000 psi, and hydrogen is 16 times lighter than air.
Hydrogen gas was used in lighter-than-air balloons for transport but is far too dangerous because of the fire risk (Hindenburg). It burns in air to form only water as waste product and if hydrogen could be made on sufficient scale from other than fossil fuels then there might be a possibility of a hydrogen economy.