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Jane Goodall, the famed scientist and conservationist for her decades of work with chimpanzees, speaks during a Vatican webinar on biodiversity April 20. Despite the multitude of environmental crises facing the planet, Goodall said she had hope humanity can make the necessary shifts, in part because of Pope Francis, "because in that position as pope, with the whole of the Catholic Church around the world, his stand on the environment really has made a big difference." (EarthBeat screenshot)