Despite being an export earning powerhouse, agriculture is also the county's biggest greenhouse gas producer.
The proposal would allow the disposal of treated and untreated sewage into the sea.
Researchers say their results show the capacity of urban areas to have "quite substantial possum populations".
They might look cute, but hedgehogs are pests, particularly around braided rivers and drylands.
Imports of an especially dirty type of coal from Indonesia topped a million tonnes for the first time since 2006.
"It's difficult and costly to remove nitrate from drinking water, the best thing obviously is to stop it from getting in there in the first place."
The levels are described as "catastrophic" for the environment.
A scientist wants us to be more aware of how we wash clothes to prevent nanoplastics ending up in the ocean.
People are smoking so much methamphetamine they might be getting fish addicted, a new study has found.