In this talk, we learn about the dangerous threats that the expansion of ticks in the world means to human health. Mary Beth Pfeiffer is the nation’s leading investigative reporter on Lyme disease, winning seven awards since 2012 for her reporting on the tick-borne scourge. She recently authored the book Lyme: The First Epidemic of Climate Change, which has been endorsed by Jane Goodall and Bill McKibbon and praised as “superbly written” and a “powerful wakeup call.”