In St. Paul's Ward 4, city council member Russ Stark faces a
challenge from Curtis Stock, an air-quality compliance
enforcement agent with the Minnesota Pollution Control Agency.
Stark, who spent 10 years in the nonprofit sector organizing
businesses and transit initiatives along University Avenue, was
elected to the seat in 2007. He carries the DFL endorsement.
Stock, who has worked in air-quality control since 1983, did not
seek endorsements from any political action committees or
parties.  Both candidates say they're environmentally committed.
Stark typically takes the bus to work (as does Stock) and lives
in a one-car household. On his campaign website, Stock displays
pictures of the "sustainable yard" his family built in their
back yard, installing rain barrels and landscaping that reduces
water runoff.  Opponents of the Central Corridor light-rail
transit line are out of luck this election, as both candidates
say that despite the challenges posed by the line's ongoing
construction, light rail will ult