EDE, Netherlands — Hundreds of climate protesters blocked private jets from leaving Amsterdam's Schiphol Airport on Saturday in a demonstration on the eve of the COP27 U.N. climate meeting in Egypt.Dewi Zloch of Greenpeace Netherlands said the activists want "fewer flights, more trains and a ban on unnecessary short-haul flights and private jets."Military police said they arrested a number of protesters for being on the airport's grounds without authorization.Responding Friday to an open letter from Greenpeace, Schiphol's new CEO Ruud Sondag said the airport is targeting "emissions-free airports by 2030 and net climate-neutral aviation by 2050.Thorny issues up for discussion at the Nov. 6-18 talks, including further cutting greenhouse gas emissions and boosting financial aid for poor countries struggling with the impacts of climate change."