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T1 Human Impacts of the Nitrogen and Phosphorous Cycles, A water security perspective
A1 Organisation for Economic Cooperation and Development, 
PB United Nations Environment Programme
YR 2013
FD 2013-10
LK https://wedocs.unep.org/handle/20.500.11822/12128
UL https://wedocs.unep.org/handle/20.500.11822/12128
NO This presentation outlines human impacts of nitrogen and phosphorus cycles from a water security perspective, defining water security through risks of shortage, quality, excess, and ecosystem resilience. It examines nutrient sources including agriculture, wastewater, and air pollution, and highlights eutrophication risks. It proposes a risk-based approach to identify vulnerable areas, prioritise policies using economic instruments, and ensure coherence across sectors to manage water risks effectively and support decision making processes.
DS UN Environment Document Repository
RD Sep 25, 2026