The main idea of this project is to show the differences between two European countries, Poland and Germany in their law structure about environment. This differences (if they are) may be caused by this, that Poland has joined European Community four years ago, and Germany is under Union’s law since it’s beginning, anyway, right now two of them are together under Union’s law, so in many ways they should manage the same. However, if you’ll look at the map, you can see that these two big countries are neighbours, so in some other ways they can be connected with themselves, also by lines of water, crossing through this part of Europe. It is good to show, how the governmets and people care about their natural resources, that are very valuable in our times. The best way to show differences is to compare water resources by numbers. That kind of informations can give a conclusion, what should be done better and in what way, the science can help in decreasing water waste or pollution.