Organic farming uses no synthetic chemicals and focuses on the health of the soil. There is also reduced run-off of water-soluble nitrogen from fertiliser into rivers and lakes, meaning less algal blooms, proliferation of weeds and pests such as mosquitoes, and other ecological change.
Organic food is also free of genetic modifications and its farmers adhere to humane production methods allowing animals to behave naturally.
The downside is that organic food generally costs anywhere from 15 per cent more to three times the price.
