The government will also ratify the Doha Amendment to extend Kyoto Protocol obligations.
A communiqué signed by nearly 40 countries has been presented to the UN Climate Change Conference in Paris.
Just over half of NZ companies believe climate change is a material concern that warrants a business response - with special audio feature.
Former cabinet minister and OECD environment director Simon Upton says the carbon reduction pledges by 140 countries are insufficient.
The use of non-binding national commitments to act on climate change is the most "exciting"
Businesses believe current targets don't position NZ in a way that's consistent with our international branding, survey shows.
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