Lithium prices are rising as demand for the key ingredient in electric car batteries grows, amid a broader push to move away from oil and gas. But extraction of the metal is time consuming and potentially harmful to the environment, and plans to produce more have prompted protests. Photo: STR/Getty Images, Oliver Bunic/AFP/Getty Images More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #Lithium #EV #WSJ