... studied. Also the plants in tropical rainforests are a major source of medicinal chemicals and so with deforestation, these plants could not be used as future medicines. Deforestation can cause the climate to become more extreme in nature, the occurrence and strength of floods and drought could increase. Heavy rainfall and sunlight quickly damage the topsoil in clearings of the tropical rainforest. In such circumstances the forest will take much longer to regenerate and the land will not be suitable for agricultural use for quite some time. Forests store large amounts of carbon that are released when trees are cut or burned. It is projected that deforestation and the burning of biomass will be responsible for fifteen percent of the greenhouse effect between 1990 and 2025. This biological effect of the greenhouse effect will differ in different countries. More carbon dioxide in the atmosphere means higher average temperatures. The ...

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