Thomas: Thanks for the comments, I might try your suggestions, though it'll have to wait until after the weekend. I don't think the crane is used for jumping, they are still busy building on the harbor.
Frank: I don't know how green they are, I would guess they are resonably energy efficient. As far as becomming CO2 free in 2050, we've recently gotten a new government which seems to intend on working against that goal. Just today they have announced a new law about electric vehicles, they have until now been free of tax, not so anymore. Hilariously, they think a lot more people will buy electric vehicles now...