Talking of ships, I'm still flying my Ravens Talon Green Edition, you know, the low emissions Technology Futures model - Hellish expensive to buy because of the filters, boosters, fuel and other economy mods. For instance, the cockpit windows and Hull surface are fitted with Thermal and Solar Radiation energy gathering equipment to supplement the regular fuel cells. And there ain't a scrap of material in this baby that can't be recycled (Heh! I've proved that often enough!).
But the set up costs are worth the long term environmental benefits.