In urban centres, natural land cover is usually reduced to less than 2 percent, and most centres have been developed on the most fertile land.
The latest state of the environment report says 94% of the river lengths in urban areas are not swimmable, nor are 82% of rural river lengths.
Concerns have been raised converting sheep and beef farms to pine forests may have environmental and social impacts.
Last month was the second hottest March since records began and Balclutha had less than 30% of its usual rainfall for the month.
Farmers need an exemption to the military style semi-automatic weapons ban so they can control pests, a Federated Farmers official said.
"The surrender or destruction of firearms that don't meet the new controls will be disappointing to many farmers, and others. But a clampdown is the responsible path to take."
In Otago today, farmers met with National's agriculture spokesperson Nathan Guy who warned a suite of new taxes could be on the way.