"So the Durning family has stopped spewing greenhouse gases from a car and now commutes mostly by foot, bus or bike. Once in a while, they'll splurge and rent a hybrid car for $8 an hour. These are cars that neighbors can share once they buy into the "flex car" rental plan.
I asked Alan Durning if he really thinks one family can make much of a difference when it comes to global warming.
"Absolutely ... We're making a quantifiable difference because we're not burning anywhere near as many gallons of gasoline," Alan told me.
CNN
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