CNG, LNG, Natural gas, Erdgas, liquefied natural gas, Flüssigerdgas, compressed natural gas, biogas, hydrogen, H2, Wasserstoff, bio, sustainable, nachhaltig, business ethics, Ethik, responsible,
verantwortlich, mobility, Mobilität, green, grün, future, Zukunft, executive consulting, David Graebe, FACT WiSE, Factwise, factwise, environment, Umwelt