Climate activists Isabelle Axelsson, Loukina Tille, Vanessa Nakate, Greta Thunberg, and Luisa Neubaue,, from left, arrive for a news conference in Davos, Switzerland, Friday, Jan. 24, 2020. The 50th annual meeting of the forum is taking place in Davos from Jan. 21 until Jan. 24, 2020 (AP Photo/Markus Schreiber)