A unit of nature is 1 m² of land.
A uon is a unique digital proof of a sustainably protected unit of nature.
Uon are issued by the Union of Nature Foundation (UON) and are distributed to individuals by EarthToday and participating brands. UON is a collaboration of Nature Protection Organizations (NPOs) worldwide that have joined forces. Each of them protects the m² of nature that underpins a uon.