NEW : ` ` People are saying they ca n't believe what they are finding , '' leader says of trash removal . Saturday 's event is called the ' American Cleanup ` ` ' Day of Action '' Large - scale trash removal is planned for 10 cities , like Los Angeles and Philadelphia . At least 10,000 volunteers are expected to travel across the United States .
NEW : `` People are saying they ca n't believe what they are finding , '' leader says of trash cleanup . Saturday 's event is called the Great American Cleanup `` National Day of Action '' Large-scale trash removal is planned for 10 sites , like Los Angeles and Philadelphia . At least 10,000 volunteers are expected to participate across the United States .