A plastic bag ban in Louisville could save more than 50 thousand tons of yard waste from being dumped in landfills. That’s according to Cynthia Knapek, the director of Brightside, Louisville Metro’s beautification organization.A ban on non-biodegradable bags was introduced in the Metro Council last month. Knapek says council members have been receptive to the bill, which could be passed as early as April.If the ban is passed, it won’t take effect until September.“It basically gives us all spring and all summer to get out and talk to neighborhood groups about why this is a good choice for the city and to let people know it’s coming," says Knapek.Paducah and Lexington have already banned plastic bags.Paper bags are about 20 cents more expensive than plastic bags. Knapek says anyone concerned with cost of yard waste disposal should invest in a permanent bin that city crews will empty and put back for reuse.