Sydney Morning Herald: There may be good reasons to eat more leafy greens and less meat, but if you're doing it to save the planet, you may be kidding yourself. Among the shock findings from a new US study for vegetarians, vegans and respected colleagues, lettuce is "over three times worse in greenhouse gas emissions than eating bacon", and "eggplant, celery and cucumbers look particularly bad when compared to pork or chicken". The study by Carnegie Mellon researchers found that switching to a healthier diet rich in...