It is impossible to prevent natural calamities; however, it is possible to minimize the impact of natural calamities such as floods, earthquakes, wild fires, droughts, landslides and famine. Most natural calamities cannot be predicted, and using some form of early warning system is the best way to deal with them.
The effects of drought and famine can be mitigated by better management of water resources. Rain water harvesting techniques are useful. Building sturdier houses in non-seismic activity zones is a recommended way to deal with earthquakes. Using modern technology to warn people of an impending natural calamity, such as a tsunami or flood, is an effective way to reduce casualties and damage.