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A dramatic pledge to cut greenhouse gas emissions has been made this morning by New Zealand's largest economic entity, Fonterra.
A special 50 percent reduction on climate change obligations for New Zealand citizens and companies will be scrapped.
Why China matters to climate change and climate change matters to China. With Professor Ross Garnaut, research fellow in economics at University of Melbourne. Audio
The latest science news with Dr Chris Smith. This week, how higher CO2 levels in our oceans could affect fish behaviour. Also why Tibetans are so good at handling high altitude. Audio
The Prime Minister Helen Clark wants New Zealand to become carbon neutral. She says it's a vital aim in the effort to tackle the effect of greenhouse gases on global warming. Chris Bramwell reports on… Audio