Lisa collects recyclables to earn money for the Junior Achievers Club school trip to Albany. Mr. Burns speaks to the club at Springfield Elementary School, scoffing when Lisa suggests his nuclear power plant start a recycling program. When Burns boasts that he would not be filthy rich if he listened to nature lovers like her, Lisa counters that his net worth is only half what he claims. When pressed, Smithers reluctantly tells Burns he has considerably less money even than that.