Following a difficult year beset by controversy, international efforts to restore the credibility of voluntary carbon markets (VCMs) continue with the release by the Voluntary Carbon Markets Integrity Initiative (VCMI) of updated guidance for corporate carbon credit claims. The VCMI is a non-profit organisation, formed in the run-up to COP26, which aims to provide companies with guidelines on the acceptable use of carbon credits as part of credible, science-aligned net-zero pathways.