A coalition of business leaders says the Zero Carbon amendment bill has to be ambitious and have all-party support in order to drive our transformation to a low carbon economy. And that means they need to have words with the National Party, says Rod Oram.

Port Nelson has joined 108 other organisations pledging their support to help reduce emissions in New Zealand. The Climate Leaders Coalition is a collective of signatories who make up 60 per cent of New Zealand's gross emissions, nearly a third of private sector GDP, and employ more than 170,000 New Zealanders.