This paper offers a global oversight of the barriers facing decarbonization through a systemic literature review. The review uses the PESTLE Framework to identify barriers through a Political, Economic, Social, Technological, Legal, and Environmental lens based on literature relating to global governing bodies, existing industrial sectors, and individual nations. The results are collated and analyzed thematically. The review shows that political tensions commonly underlie other barriers such as technological and economic, which points to political barriers being the most significant. Two main themes are identified as being the root cause of many barriers: lack of constructive communication; and lack of systems planning
