Ms Gillian Westbrook:

I will respond to Senator Mulherin. Organic farming would be seen as something of a shining light in terms of its carbon sequestration potential because the basis of the system works on improving the carbon soil organic matter which obviously has big potential and is a huge mitigation strategy. With regard to greenhouse gas emissions, 80% of the nitrous oxide emissions come from the use of synthetic fertilisers, which we do not use, and some come from manure management techniques. Nitrous oxide has 314 times more global warming impact, so it is the key one to examine. When one looks at that in terms of groundwater pollution and groundwater quality, there is also a huge issue with nitrification, de-nitrification and acidification, which is becoming more populated and will be picked up with the marine framework strategy as well. Obviously, there is a huge issue in that regard. It is one of the main reasons the regional approach is used in the Paris Agreement. The regional approach to rural development is to increase the level of organic operators and to reduce this environmental impact, not because-----