KPMG and the other big accounting/consultancy firms absolutely will sell you a carbon audit, if you ask. But their incentives are going to be aligned with the

KPMG and the other big accounting/consultancy firms absolutely will sell you a carbon audit, if you ask. But their incentives are going to be aligned with the client's, and if the client makes a case for some unusual treatment of its carbon footprint they will be very receptive. This differs from accounting, where there are external regulators who specify accounting practices, and the audit firm checks that the client is close enough to complying with them, at the risk of major reputational damage for both parties.