Have that student present the group's reactions to the activity to the class. The United States has a lot of cheap, clean fresh water. That's not the case in much of the world, however. In countries where clean, fresh water is scarce, it is highly valued and used sparingly. As global demand for water increases, water reserves for human use are shrinking, making conservation of fresh water one of the most important challenges we face as we enter the 21st century.
Pollution is another problem that threatens fresh water.
Assign activities, either online or offline, to reinforce the importance of these threats to fresh water. In addition to the suggestions below, you can find dozens of activities suitable for a range of ages in the sites listed in Other Related Web Sites . Water is a limited and precious resource. In North America, people use more of it per person than anywhere else in the world. In some countries, clean, fresh water is scarce.