Inhabitat reports (quoting World Architecture News and The Times - the LaRouchies also seem to have an interest in the topic) that Russia has "approved" the long talked about Bering Strait rail tunnel / energy corridor - a critical component in Bucky Fuller's vision of a global energy grid - Russia Green Lights $65 Billion Siberia-Alaska Rail and Tunnel to Bridge the Bering Strait!.
The Register notes "this time its chances of actually being built are strengthened by a 500-mile link from the existing Trans-Siberian line to the Eastern Siberian city of Yakutsk, scheduled for completion in 2013" - however I don't think anyone is holding their breath waiting for tunnel construction to start.
The high speed railway and tunnel will be a private public partnership whose economic impact could be startling. 100 million tons of freight could be moved per year using the most efficient known way of transport. Proposed tidal energy plants could provide 10 gigawatts of energy and a string of wind power fields could churn a constant supply of clean energy, serving as a vital link to a worldwide energy grid. The tunnel alone would take fifteen years to complete — and an energy and railway network would take many more — but the project would significantly change the shipping and energy industry.
In a time of austere measures by governments throughout the world we hear less and less of large-scale projects, but the economic and environmental benefits of developing critical infrastructure links is a key element to 21st century environmentally sound economic growth.