(Reuters) - Dozens of people were arrested in Washington state on Sunday, two days after protesters set up a blockade on railroad tracks leading to a pair of oil refineries as part of a global protest over dependence on fossil fuels, authorities said. The protesters, camping out on BNSF Railway [BNISF.UL] tracks at Anacortes, Washington, about 70 miles (113 km) north of Seattle, refused police orders to disperse, said Katie McCulloch, a spokesman for the Skagit County Department of Emergency Management. All of the 52 protesters under arrest were charged with trespassing, while one person was also charged with resisting...