By the year 2000 about 40 percent of the world's trees will have been lost and 15 to 20 percent of the earth's total species of plants and animal will be extinct. Since 1950 the world has lost more than half of its trees. Most rainforest will be damaged or destroyed by 2025. There are many causes of deforestation which include logging, acid rain, firewood, clearing of land, and developed countries. Logging is a problem all over the world because timber is constantly needed for making furniture , houses, paper, and many other products.
Acid rain is a problem in Europe, Canada, and America because of it's widespread environment damage.
In many countries people don't have gas or electricity and they have to use firewood for fuel and they continue to cut down huge amounts of trees. In many developing countries land is being cleared for farming, highways, and urban development. Developed countries contribute to deforestation in under-developed countries. Many developing countries cut down and sell timber to get money easily. There are many negative effects of deforestation.