And the sheer number of people living in close proximity to one another creates additional problems.

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Earlier testing also revealed problems with a Federal Aviation Administration ground-proximity warning system.

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West Midlands Police said it had been monitoring the fire due to its proximity to the M6, but reported no smoke-related problems on the motorway.

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The proximity of offshore wind in the the Atlantic Ocean to deep demand centers avoids the problems of moving power over long distances and significantly enhances the economic fundamentals of mega projects like those currently being considered in North Carolina.

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His role as the Russian-backed villain in the 2004 election seems to be the least of his problems, though his roots in the Russian-speaking east of Ukraine and his proximity to business tycoons there make him seem more alien in the west.

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