Ключевые слова: alternative, alternative energy, blue, bus, cell, city, city bus, clean, clean mobility, decarbonization, decarbonizing, eco, energy, environment, environmentally friendly, fuel, fuel cell, gas, h2, hydrogen, industry, low, mobility, power, powered, powered by, public, renewable, street, sustainability, sustainable, technology, transport, transportation, urban, vehicle, zero, zero emissions,