(AP) - How are those greenhouse gases doing?
New York City residents and visitors will be able to monitor the situation, thanks to a new giant billboard in Manhattan that features a carbon counter. Digital numbers help viewers track the amount of greenhouse gases in the atmosphere.
The 70-foot-high billboard is outside Madison Square Garden and Pennsylvania Station, not far from the Empire State Building. A widget also will be provided to Web sites and blogs around the world. [Read More]
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