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Airships can play a vital role in the renewable future. Excess wind, solar and hydro energy can be stored in hydrogen, which can then be pumped into airships, these unmanned airships layered with solar cells for propulsion can take on cargo and fly to their destination where the hydrogen will be pumped out of the ship and stored into bladders or tanks. Kill 2 birds with one stone.
People need to know how wonderful a resource hydrogen can be.
