useful topics

You can speak about mobile phone advantages and disadvantages.There are many people in the world who use mobiles nowadays.You can also speak about "Public transport" advantages and disadvantages.You can also speak about Bikes advantages and disadvantages,

a good topic will be on reforestation. whenever we hear about reforestation, we are always inclined to think that we are going to do something about planting trees in the forest again. no, this is not so. in order to have some trees again in places where people have congregated to live, we can always encourage or require residents to plant some trees around the yard. there are some small trees like guava and papaya which can easily be grown at the side streets or the front and backyard. this act will help in reviving the healthy environment that we have lost a long time ago, in our cities.

Hi dude its a good discussion to start i don't comment on others responses but i feel this kind of discussions will some way help the society.For instance in Hyderabad u can see the traffic problem,and also one major issue which concerns me is that these days several old trees are being chopped for the reason of road widening these trees are about 100 years old. And day by day our city is loosing greenery, which creates a adverse effect on the ecosystem. This my view. Start discussions on plants,plantation,greenery topic if possible.

Useful is such a relative word. Meaning, some topic maybe useful to someone, while it maybe just a garbage to another one. So the usefulness of the topic depends on your target viewers/members who would respond about it..