Since 1970, Mother Earth News has been the magazine of choice for environmental-minded consumers. The bimonthly lifestyle rag, which boasts national circulation of 470,000 readers, covers topics ranging from organic gardening and natural foods to green homemaking. Mother Earth News is not suitable for all advertisers, however; the magazine's diehard environmentalist readers loudly protest companies that don't meet high standards of sustainability. List pros and cons of placing ads in Mother Earth News, and identify two brands that should advertise in the magazine and two that should not.