▁for ▁the ▁jobs ▁lost ▁in ▁logging , ▁min ing , ▁and ▁other ▁indust ries ▁associated ▁with ▁production ; ▁and ▁that ▁materials ▁such ▁as ▁paper ▁pul p ▁can ▁only ▁be ▁rec yc led ▁a ▁few ▁times ▁before ▁material ▁de grad ation ▁prevents ▁further ▁rec y cling . ▁ ▁Much ▁of ▁the ▁difficulty ▁inher ent ▁in ▁rec y cling ▁comes ▁from ▁the ▁fact ▁that ▁most ▁products ▁are ▁not ▁designed ▁with ▁rec y cling ▁in ▁mind . ▁The ▁concept ▁of ▁sust ain able ▁design ▁a ims ▁to ▁solve ▁this ▁problem , ▁and ▁was ▁laid ▁out ▁in ▁the ▁book ▁C rad le ▁to ▁C rad le : ▁Rem aking ▁the ▁Way ▁We ▁Make ▁Things ▁by ▁architect ▁William ▁Mc Don ough ▁and ▁chem ist ▁Michael ▁Bra ung art . ▁They ▁suggest ▁that ▁every ▁product ▁( and ▁all ▁pack aging ▁it ▁requires ) ▁should ▁have ▁a ▁complete ▁" closed - loop " ▁cycle ▁mapped ▁out ▁for ▁each ▁component — a ▁way ▁in ▁which ▁every ▁component ▁will ▁either ▁return ▁to ▁the ▁natural ▁e cos ystem ▁through ▁bi ode grad ation ▁or ▁be ▁rec yc led ▁in def initely . ▁ ▁While ▁rec y cling ▁diver ts ▁waste ▁from ▁entering ▁directly ▁into ▁land fill ▁sites , ▁current ▁rec y cling ▁miss es ▁the ▁diss ip ative ▁components . ▁Complete ▁rec y cling ▁is ▁imp ract ic able ▁as ▁highly ▁dispers ed ▁was tes ▁become ▁so ▁dil uted ▁that ▁the ▁energy ▁needed ▁for ▁their ▁recovery ▁becomes ▁increasing ly ▁excess ive . ▁" For ▁example , ▁how ▁will ▁it ▁ever ▁be ▁possible ▁to