New Zealand’s government has announced support for voluntary carbon and nature markets, aiming to provide a 'warrant of fitness' that signals which markets can be trusted without directly regulating them.The strategy is intended to boost private investment in projects that reduce emissions or restore ecosystems, as public funds alone are insufficient.

Voluntary markets differ from compliance schemes because participation is optional and verification is handled by a range of independent organisations following international standards.

While this decentralised approach allows innovation and diversification—especially beyond tree planting to wetlands, peatlands, soil carbon, and blue carbon ecosystems—it raises significant credibility concerns.

International experience shows many credits fail to ensure real, additional, and permanent emissions reductions, leaving investors exposed to low-quality credits and potential greenwashing.

The government’s endorsement of international initiatives such as the Integrity Council for the Voluntary Carbon Market aims to mitigate these risks but relies heavily on external governance and standards.

Ultimately, voluntary markets could complement New Zealand’s Emissions Trading Scheme by attracting early-stage investment and supporting ecosystem restoration, but without rigorous oversight, their environmental impact may remain uncertain.Clear rules are needed to ensure these markets support genuine climate action rather than providing a convenient shortcut for carbon-neutral claims.