Is the attention being paid to all things green starting to feel like bubble? A CBS-owned radio station in Washington, D.C., has just modified its classic rock format to become a “green” station called The Globe. The stations promises, among other things, to use renewable energy to power its 50,000-watt transmitter and replace company-own cars with hybrids.

The station is WARW 94.7, a classic rock station that wasn’t doing well in the ratings. It’s going to expand its playlist to include more contemporary artists, CBS says, as well as surround itself with the aura of green. It’s the first of its kind, but the format could be tried elsewhere, I’m told. Among its ideas:

In-studio artists will perform in The Globe’s Custom Greenhouse outfitted with low voltage lighting and recycled flooring;

Annual Earth Day concert event;

Station appearances will be branded “Go Green With The Globe” and provide listeners with information on environmental leadership and energy conservation;

“We look forward to incorporating green aspects into every facet of our operation,” Michael Hughes, the station’s general manager, said in a press release. “It’s not often that you can perfectly align great music with a message so central to your audience’s beliefs. Rock and ‘green’ is just such a winning combination.”

Rock and green???

Well, maybe it’s not as crazy as it sounds. The social movements of the 1960s were partly about the music. But how many times can the station play “They Paved Paradise and Made it a Parking Lot.” I guess we’ll soon find out.