No doubt this is a great initiative. I know people love to live in cities. When I said "these buildings can never take the place of natural forests", my intention was to pointing towards the importance of forests. No matter how green our cities are but natural forests are very necessary for the health of this planet. We must preserve our forests where not only trees but animals and various life forms also flourish. We need more buildings like these buildings. Also, we should increase green areas in our cities so that problem of global warming may be kept in check.