Engineers who have assessed the project to build deep underground storage facilities feel it would be a bigger construction challenge than that of the channel tunnel, with tunnelling between 200 and 1, 000 metres.

BBC: Nuclear waste disposal: Where in Cumbria to bury it?

Under the Manhattan Project, several secret facilities were set up to build and test bomb components.

NPR: Revisiting the Birth of the Bomb

The Cape Wind project is the most developed of any proposals to build wind facilities on the OCS, but a number of other offshore wind power proposals are also in the works.

FORBES: Alternatives