Prime Minister John Key will be among around 150 world leaders contributing to talks in Paris this week that many hope will be more than just hot air about fighting climate change.
The two-week United Nations Conference on Climate Change kicks off today in the French capital - with speculation a binding agreement can be reached on restricting greenhouse gases.
The worldwide People's Climate Change March included thousands taking to the streets of 35 New Zealand centres at the weekend, calling for a meaningful plan to combat climate change - predicted to cause worldwide devastation in the future - after the failings of previous commitments.
Climate Change Minister Tim Groser is attending the conference with Mr Key.
New Zealand is taking to the conference a redefined target of a 30 percent reduction in 2005 greenhouse gas levels by 2030, which it says is a significant increase on the previous target of five per cent below 1990 emission levels by 2020.
Opposition parties and environmentalists say the commitment should be more.
Mr Key is scheduled to address the conference today. Because so many leaders are speaking they have split them into two rooms.
Mr Key has said the country's new target is credible and he is confident technological developments can curb New Zealand's biggest climate change contributor, agriculture.