Carbon credits feature prominently in corporate climate strategies and have sparked public debate about their potential to delay companies’ internal decarbonisation. While industry reports claim that credit purchasers decarbonize faster, rigorous evidence is missing. This study (see below) provides an in-depth analysis of 89 multinational companies’ historical emission reductions and climate target ambitions. Based on self-reported environmental data and more than 400 sustainability reports, we find no significant difference between the climate strategies of companies that purchased credits and those that did not. Voluntary offsetting is not a central part of most companies’ climate strategies, and many pass credit costs directly onto their customers. While the companies within our sample retired one-fourth of all carbon credits in 2022, the top five offsetters’ expenditures on voluntary emission offsetting are, on average, only 1 percent relative to their capital expenditures.

Abstract from Niklas Stolz &  Benedict S. Probst, The negligible role of carbon offsetting in corporate climate strategies, Nature Communications,  Sept. 10, 2025