The 2015 Paris Agreement represented the first multilateral agreement to acknowledge and support efforts by so-called non-state actors, including corporations, to cut their greenhouse gas emissions. Moreover, the goals and structure of the Paris Agreement—focused on limiting warming to well below 2°C relative to pre-industrial levels and allowing for national governments to set voluntary emission goals—have informed the setting and adoption of voluntary corporate commitments. Some corporations have taken on “Paris-aligned” emission commitments, indicating that they would deliver emission reductions consistent with the temperature objective of the 2015 agreement. With the increasing adoption of mid-century net-zero emission goals by national governments, some corporates have likewise adopted their own net-zero emission commitments.
Before the Paris Agreement few companies had made commitments to reduce their carbon emissions. Most of them did so through the Carbon Disclosure Project (CDP), which benefited from the momentum generated by the Paris agreement to substantially expand the number of companies that would make decarbonization pledges and voluntarily disclose their carbon emissions. Later, CDP along with the United Nations Global Compact, the World Resources Institute (WRI), and the Worldwide Fund for Nature, founded the Science-Based Target initiative (SBTi) to engage with companies to implement carbon reduction commitments that are aligned with the Paris agreement and the goal of limiting global overheating to less than 2°C above pre-industrial levels. As Mark Carney had predicted in the run-up to the COP 26 in 2021, “More and more companies—and it will be a tsunami by Glasgow—will have net zero emissions plans.”1 As of this writing, SBTi can boast that “more than 4,000 businesses around the world are already working with the Science-Based Targets initiative.”2
Other major decarbonization drives in the wake of the Paris agreement have emerged in the financial sector, with the launch of the Task Force on Climate-Related Financial Disclosures in 2015, Climate Action 100+ in 2017, the inauguration of the Asset Owners Net-Zero Alliance in 2019 together with the Net Zero Asset Managers Initiative in 2020, and, the culmination of this wave of initiatives, the creation of the Glasgow Financial Alliance for Net Zero by Mark Carney at the COP 26 in April 2021. In parallel, the Network for Greening the Financial System (now comprising 121 central banks and financial supervisory authorities) was set up in 2017, providing guidance on net zero compatible decarbonization pathways. In short, the Paris agreement has ushered in a new era of decarbonization commitments.
An important aspect of emission reduction commitments is the extent to which they specify interim targets. Commitments are less credible when they specify distant targets and are vague about the pathway toward attaining the target. Businesses cannot decarbonize overnigh