Shocking, I know.
according to several outside experts and South Pole’s own analysis, the firm and its partner ended up vastly overestimating the extent of the preservation by Kariba. As a result, Gucci, Nestle, McKinsey and other South Pole clients have — unwittingly — overstated their own progress in combating climate change, because the Kariba credits they bought haven’t generated enough real atmospheric benefit.
https://finance.yahoo.com/news/faulty-credits-tarnish-billion-dollar-194447721.html