She's known worldwide for her climate-change activism, but now Sweden's Greta Thunberg is targeting the way your food is produced. "Our relationship with nature is broken. But relationships can change," Thunberg said in a video she posted Saturday to mark the International Day of Biological Diversity. "Millions have died from COVID-19, Zika, Ebola, West Nile Fever, SARS, MERS. Up to 75% of all new diseases come from other animals. Because of the way we farm and treat nature, cutting down forests and destroying habitats, we are creating the perfect conditions for diseases to spill over from one animal to another...