There was a time that the Netherlands were largely covered with forests. The name Holland (holtland or woodland) refers to this. However now, forest covers not yet 11% of the surface, which results in the Netherlands being one of the least wooded countries in Europe. To see a proper forest, one would have to cross the border. It is sometimes thought that forests are a supplier of oxygen, but when the wood is rotting or burning, there is as much oxygen consumed as was issued during the life of the tree. The stored carbon (C) joins with the O2. Because we continue to pump up and burn the trees, plants and plankton from primeval times (in the form of oil or otherwise), we add the present huge amounts of CO2 to the atmosphere, causing great imbalance .