Many museums and historical sites are mainly visited by tourists but not local people. Why is it the case? What can be done to attract local people to visit these places?
Nowadays, many people have an unhealthy diet and do not exercise regularly. What are the reasons behind this trend? How can we encourage these people to live healthy lifestyles?
In some parts of the world traditional festivals and celebrations have disappeared or are disappearing. What problems is this causing? What measures could be taken to counter this situation?
Environmental problems such as pollution and climate change affect all the people in the world. While global solutions are required to mitigate these problems, very few have been suggested. Why is there only a small number of solutions? How can these problems be resolved or mitigated?
Some cities create new housing for their growing populations by constructing a smaller number of high-rise buildings. Other cities create more of low-rise buildings. Which solution is better, in your opinion?