Despite the c-c-c-cold yesterday morning, Cambridge's own Mayor Denise Simmons (left) and her aid, Rosaleah Brown (right), went g-g-g-green! In honor of February's Walk-Ride Day, the two City officials pedaled to the Harvard Square Business Association's annual breakfast.

Mayor Simmons was chauffeured on the back of a bicycle-built-for-two by Green Streets Initiative founder and organizer, Janie Katz-Christy.

Walk-Ride days, sponsored by Cambridge-based Green Streets Initiative, are always the last Friday of every month and encourage people to, yes… to walk, ride, carpool, bus, T, or use some other mode of transport than their own personal car.

For every mile you don't drive you save one pound of carbon dioxide (CO2) and for every gallon of gasoline you don’t use, you keep 20 pounds of CO2 out of the atmosphere!

"It was Freeeeezing!" said Janie Katz-Christy, founder and organizer of Green Streets and the monthly Walk-Ride days. "But invigorating and wonderful," she added. "You just need to wear more layers!"

Mayor Simmons said her forehead hurt from the cold, but seemed very proud. Her aide, Rosaleah Brown, wore green high heels!

Next Walk-Ride day is March 28th; hopefully it will be a little warmer by then, although in New England you just never know. So go green, wear green, and don’t forget…Online raffle, retail sponsors: free dessert at Pizzario Uno, Coffee or tea at Z-squared, ice cream...