Carbon Catch-Up: Emissions intensity – Who’s clean, who’s carbon-heavy

Most companies in the NZX50 are improving their emissions intensity. (Image: Supplied)

Fri, 21 Nov 2025

Total emissions tell one story. Emissions per dollar of revenue tell another.Auckland International Airport, Heartland Group, Fonterra, Genesis Energy and Tourism Holdings rank among the NZX50’s most carbon-intensive companies, emitting more greenhouse gases per unit of revenue than most of their peers.That measure – emissions intensity – is becoming a key indicator. It also signals how exposed they may be to future carbon pricing or regulation.BusinessDesk’s Carbon Catch-Up project provides the most detailed look yet at...

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