But if it can be cost-effectively achieved and subsequently replicated, the projects would provide a refreshing new source of power to residents along the East Coast, and elsewhere.

FORBES: Offshore Wind Projects Could Provide Refreshing Energy Source

The makers say the new bus offers a "sustainable, safe and clean power source", ideally suited for a densely populated city.

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As more governments look to civilian nuclear power as a source of clean electricity, tighter controls and other new schemes are needed to help stop would-be cheats or terrorists from exploiting or stealing some of the proliferation-prone technologies and materials for bomb-building.

ECONOMIST: Getting to zero