This creates farmland by eliminating trees and fertilizing the land with the ash remaining. The problem with this technique is that it eliminates the rain forests and puts carbon and carbon dioxide into the air. Eliminating the rain forest results in destruction of several ecosystems for all plant and animal life in these areas. These plants and animals have provided us with countless medical cures and oxygen while removing carbon dioxide from the air. When these people destroy the rain forest we lose all of the benefits of the forest and we speed up global warming by adding carbon dioxide to the air and not allowing the forest to remove it.
Solutions start with education.
If these people use the high investment strategy and concentrate on quality instead of quantity, then the forest can start to be preserved. As parents have fewer children, they can invest skills in themselves to earn a living another way. They also spend less time raising children to harness these skills and they can pass these skills on by educating their children. Even farming techniques can improve. Instead of slash and burn, they may want to experiment with crop rotation to help preserve over-farmed land and use less rain forest.