Plug-ins the best tool against global warming?

Plug-in hybrids an important tool to fight CO2 emissions?

"If motorists used rechargeable "plug-in" hybrid-electric vehicles in large numbers, the U.S. could see a significant drop in greenhouse gas emissions by the middle of the century, says a study released Thursday."

The hype around plug-in hybrid vehicles just keeps building.

Source: MSNBC