A Daily news digest by Jasper van Santen

Take the Subway, – NYTimes.com

In News on March 4, 2012 at 21:22

Take the Subway 

True, Moscow’s gridlock was not as bad as the August 2010 traffic jam on the main north-south highway from Beijing to Inner Mongolia. Said to be the longest in the history of the planet, that baby stretched 60 miles, moved at a speed of 2 miles per day, took 10 days to unsnarl and spawned its own local economy of noodle sellers.

 If the coal plant is 33 percent efficient (the average in the U.S.), and the light bulb is 3 percent efficient, then the net conversion of energy to light is just 1 percent.  That is pathetic — and typical. An L.E.D. light, powered by an efficient natural gas turbine, converts 20 percent of the total energy to light— a 20-fold increase.”  Run it on renewables and it’s carbon-free to boot.

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