One of Northland's biggest organisations reduced its carbon footprint by 7 per cent last year.
The 2016-2017 reduction means Northland District Health Board is well on its way to achieving its targeted cut of greenhouse gas emission by 15 per cent by 2025.
Energy audits were performed on the board's hospitals at the end of last year and 2016 to create a plan around electricity consumption.
While the footprint shrank for gas, diesel and other greenhouse emissions, two areas of sustainable resource consumption grew — waste going into landfills and electricity use.
A reduction in electricity emissions was largely due to a greener national grid but actual electricity consumption increased by 3 per cent, consistent with the trend of the past couple of years.
The largest decrease was in diesel use, after Dargaville Hospital's water and air heating boilers were switched to an electric system, saving 51,000 litres of diesel in a year.