Traditionally called « common resources » (things which belong to the community), commons have been a little left out.
They have been supplanted by:
private goods organized by the market
State provided public goods provided
Therefore commons have become « the goods of the person... » of which no one takes care.
Yet commons are not ownerless goods.
Each of us can legally claim rights over them.
They feed us, allow us to communicate and travel, they inspire us... even enable us to reject our wastes (in the air or the water).