 Complete the following phrase:  The South African Environmental Observation Network SAEON is a science network of people, organisations and, most importantly observation platforms, that perform Long-Term Ecological Research LTER in South Africa and its surrounding oceans. The SAEON is of global importance as an innovative approach in ecology to understand environmental change and to determine the impact of anthropogenic forces at multiple scales but it is a remarkably complex challenge to statistically discern between ubiquitous natural variability and exogenous forcing. The SAEON constitutes a national government response to the World Summit on Sustainable Development 