anging ▁occurr ences , ▁greatly ▁encourag ed ▁rec y cling . ▁The ▁strugg les ▁of ▁war ▁claimed ▁much ▁of ▁the ▁material ▁resources ▁available , ▁leaving ▁little ▁for ▁the ▁civil ian ▁population . ▁It ▁became ▁necessary ▁for ▁most ▁homes ▁to ▁rec ycle ▁their ▁waste , ▁as ▁rec y cling ▁offered ▁an ▁extra ▁source ▁of ▁materials ▁allowing ▁people ▁to ▁make ▁the ▁most ▁of ▁what ▁was ▁available ▁to ▁them . ▁Rec y cling ▁household ▁materials ▁meant ▁more ▁resources ▁for ▁war ▁efforts ▁and ▁a ▁better ▁chance ▁of ▁victory . ▁Mass ive ▁government ▁promotion ▁campaign s , ▁such ▁as ▁the ▁National ▁Salv age ▁Camp aign ▁in ▁Britain ▁and ▁the ▁Salv age ▁for ▁Vict ory ▁campaign ▁in ▁the ▁United ▁States , ▁were ▁carried ▁out ▁on ▁the ▁home ▁front ▁in ▁every ▁comb ative ▁nation , ▁ur ging ▁citizens ▁to ▁don ate ▁metal , ▁paper , ▁ra gs , ▁and ▁rub ber ▁as ▁a ▁matter ▁of ▁patri ot ism . ▁ ▁Post - World ▁War ▁II ▁▁ ▁A ▁considerable ▁invest ment ▁in ▁rec y cling ▁occurred ▁in ▁the ▁ 1 9 7 0 s , ▁due ▁to ▁rising ▁energy ▁costs . ▁Rec y cling ▁al umin ium ▁uses ▁only ▁ 5 % ▁of ▁the ▁energy ▁required ▁by ▁vir gin ▁production ; ▁glass , ▁paper ▁and ▁other ▁met als ▁have ▁less ▁dram atic ▁but ▁very ▁significant ▁energy ▁sav ings ▁when ▁rec yc led ▁feed stock ▁is ▁used . ▁ ▁Although ▁consumer ▁electron ics ▁such ▁as ▁the ▁television ▁have ▁been ▁popular ▁since ▁the ▁ 1 9 2 0 s , ▁rec y cling