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.
Other Hydrogen Facts: While about 75% of the universe's elemental mass is hydrogen, hydrogen is relatively rare on Earth. The most common isotope of hydrogen is protium, which has one proton, but no neutrons. Hydrogen gas is extremely flammable. It was associated with the famous explosion of the Hindenburg airship and is used as a fuel by the space shuttle main engine.