New Zealand is sometimes viewed as being "clean and green" but this can be refuted due to pollution levels, among other factors.
In recent years concerns have been raised about the effect of intensification of dairy farming on water quality.
The Drying and Clean Streams Accord was established to address problems with water pollution due to dairy farming.
Fertiliser runs off farms and yards into nearby rivers and streams, which carry it out to the ocean.
In other Kyoto Protocol Annex 1 countries, agriculture typically contributes about 11% of total emissions.