▁such ▁poll ution , ▁if ▁extens ively ▁mit ig ated , ▁should ▁be ▁no ▁bar ▁because ▁there ▁were ▁more ▁popul ous ▁po ckets ▁of ▁London ▁where ▁the ▁poll ution ▁levels ▁were ▁currently ▁even ▁worse . ▁Prime ▁Minister ▁David ▁Camer on ▁cha ired ▁a ▁Cab inet ▁committee ▁to ▁consider ▁the ▁report . ▁The ▁committee ▁ex cluded ▁prominent ▁disapp ro ving ▁Cab inet ▁members ▁who ▁were ▁critical ▁of ▁He ath row ▁expansion , ▁prompt ing ▁further ▁controvers y . ▁The ▁just ification ▁for ▁ex cluding ▁these ▁minister s ▁was ▁that , ▁having ▁previously ▁set ▁out ▁their ▁opinions , ▁they ▁had ▁a ▁conflict ▁of ▁interest . ▁The ▁Conserv ative ▁Member ▁of ▁Parliament ▁for ▁Richmond ▁Park ▁( he av ily ▁cent red ▁on ▁a ▁main ▁landing ▁path ) ▁and ▁former ▁editor ▁of ▁The ▁E colog ist ▁magazine , ▁Z ac ▁G olds m ith , ▁who ▁in ▁July ▁ 2 0 1 5 ▁and ▁pol led ▁runner ▁up ▁for ▁ 2 0 1 6 - 2 0 2 0 ▁Mayor ▁of ▁London , ▁had ▁v owed ▁to ▁res ign ▁his ▁seat ▁in ▁Parliament ▁and ▁against ▁his ▁own ▁party , ▁if ▁He ath row ▁expansion ▁plans ▁were ▁to ▁be ▁approved ▁by ▁the ▁Government . ▁ 2 6 ▁October ▁ 2 0 1 6 : ▁He ath row ▁is ▁chosen ▁over ▁G at wick ▁as ▁the ▁preferred ▁place ▁to ▁build ▁a ▁new ▁run way . ▁G olds m ith ▁res igned ▁and ▁was ▁re - elect ed ▁at ▁the ▁next ▁General ▁E lection ▁as ▁an ▁expansion - crit ical