Fresh water has always been a limited resource in some parts of the world. Today, however, growing worldwide demand has made this a global problem. What are the causes of the increased demand? What measures could governments and individuals take to respond to this problem?
In many places, new homes are needed, but the only space available for building them is in the countryside. Some people believe it is more important to protect the countryside and not build new homes there. What is your opinion about this?
Far too little has been done to prevent animals and plants from dying out, although people have been aware of this problem for a long time. Why do people do so little about it? How can we prevent animals and plants from going extinct?