International Nitrogen Initiative is "dedicated to optimizing the use of nitrogen in food production, while minimizing the negative effects of nitrogen on human health and the environment as a result of food and energy production".

UNEP Reactive Nitrogen in the Environment

IPCC "Nitrous Oxide Emissions from Agriculture"

EU

EnVeg investigated nitrogen use in field grown vegetables

UK

Nitrous Oxide Focus Group

To Do: Investigate the question raised at IPC Seminar: 

"Did the IPCC take full account of reactive nitrogen - or did they underestimate, its affect in climate change?"