Terra Nullius (/ˈtɛrə.nʌˈlaɪəs/, plural terrae nullius)
is a Latin expression deriving from Roman law meaning "nobody's land", which is used in international law to describe territory which has never been subject to the sovereignty of any state, or over which any prior sovereign has expressly or implicitly relinquished sovereignty.
The act of stepping on the ‘empty land’ makes you directly responsible for the contamination which will prevail far longer than our measly lifespans. We all have an impact on the world around us by being alive, there’s no way to live a life without having a footprint on the rest of the world. This fact though is less evident when we don’t see the exact impact, the exact moment when we chose to do what we do. The work removes this from the equation, your action has instant effect and, though visually pleasing, stirs a thought of the irreversible step you have just taken.