Wednesday, March 14, 2012

New York City billboard monitors greenhouse gases

How are those greenhouse gases doing?

New York City residents and visitors will be able to monitor the situation, thanks to a giant billboard in Manhattan. A widget also will be provided to Web sites and blogs around the world.

The 70-foot-high billboard is outside Madison Square Garden and Pennsylvania Station, not far from the Empire State Building.

It features a carbon counter. Digital …

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