Sir: I would like to draw the attention of the concerned authorities towards the increasing problems of pollution in our beloved city Karachi. A major problem contributing to this issue is the absence of a proper garbage disposal system in many areas of the city. People just throw trash out of their houses and empty plots seem like the next best place for this purpose. The implementation of a citywide garbage disposal system is an absolute must and public service messages informing the people about the benefits of following this system is also required. Meanwhile, steps to deal with the ever accumulating trash need to be taken. A change like this cannot happen overnight, but taking the first step towards change is the most important thing. I think most people will feel comfortable when they will know that the concerned authorities are actually doing something to solve the issue of trash on streets. MISBAH AZIZ Karachi