, ▁could ▁lead ▁to ▁substantial ▁energy ▁sav ings ▁( E U , ▁ 2 0 0 1 ). ▁However , ▁there ▁are ▁problems ▁with ▁using ▁the ▁waste ▁Ca O ▁in ▁c ement ▁manufact ure . ▁For ▁example , ▁adding ▁Ca - loop ing ▁to ▁all ▁coal - f ired ▁plants ▁in ▁the ▁UK ▁would ▁generate ▁enough ▁waste ▁for ▁ 3 3   M ton nes / yr ▁of ▁c ement ▁production , ▁whereas ▁current ▁c ement ▁production ▁in ▁the ▁UK ▁is ▁only ▁ 1 2 . 5   M ton nes / yr . ▁Hence , ▁if ▁the ▁technology ▁is ▁applied ▁on ▁a ▁large ▁scale , ▁the ▁pur ge ▁rate ▁of ▁Ca O ▁should ▁be ▁optimized ▁to ▁minim ize ▁waste . ▁ ▁Political ▁and ▁environmental ▁imp lications ▁ ▁To ▁fully ▁gauge ▁the ▁vi ability ▁of ▁calci um ▁looping ▁as ▁a ▁capture ▁process , ▁it ▁is ▁necessary ▁to ▁consider ▁the ▁political , ▁environmental , ▁and ▁health ▁effects ▁of ▁the ▁process ▁as ▁well . ▁ ▁Political ▁imp lications ▁Though ▁many ▁recent ▁scientific ▁reports ▁( e . g .: ▁the ▁seven - wedge ▁stabil ization ▁plan ▁by ▁Pac ala ▁and ▁Soc ol ow ) ▁convey ▁an ▁ur gent ▁need ▁to ▁deploy ▁C CS , ▁this ▁ur gency ▁has ▁not ▁spread ▁to ▁the ▁political ▁establishment , ▁mainly ▁due ▁to ▁the ▁high ▁costs ▁and ▁energy ▁penalty ▁of ▁C CS ▁ ▁The ▁econom ics ▁of ▁calci um ▁looping ▁are ▁integral ▁to ▁its ▁political ▁vi ability . ▁ ▁One ▁economic ▁and ▁political ▁advantage ▁is ▁the ▁ability ▁for ▁Ca - loop