EIONET-SI is an information and communication network. It supports collection and dissemination of environmental data. It is a part of EIONET network established by European Environment Agency (EEA).
EIONET (Environmental Information and Observation Network) consists of the EEA itself, a number of European Topic Centres and a network of around 900 experts from 37 countries in over 300 national environment agencies and other bodies dealing with environmental information.