hello I think that the ...

hello I think that the solution is the vegetation. the more luxuriant it is more it consumes water and more its roots infiltrate in the ground this last being used as drainage of rain waters. Qaund the flood is done it is already too late. on the other hand with vegetation part of rainwater will leave already in infiltration in the ground thanks to the roots. who more is one fights the désertifiction of the cities. the CEBRE centers Purification of Waste waters and of Ecological Recycling sets up the compartmental cleansing of waste waters more responsible but so productive for the vegetable biodiversity. that Ci by the principle of the photo synthesis will reset the atmosphere of the cities by absorbing the C02 carbonic gas and by rejecting oxygen 02.