Deforestation leads to erosion. Avalanches and mudslides occur more frequently since the roots no longer bind the soil. The danger of building collapse is increased by the unstable ground (Center for International Ferestry Research, 2008). Right now we see the tragic examples of mudslides in Brazil following heavy rain and deforestation in densely inhabited areas.
Parasitic diseases will become more widespread with a warmer and moister climate. These climatic conditions lead to an increased number of mosquitoes, and enables them to settle in previously untouched areas (Henson, R. 2008). The consequence is increased danger of widespread diseases such as malaria and dengue fever.
Several major studies and statistics show that tropical cyclones worldwide are getting both stronger and more numerous over the past decade (Henson, R. 2008). Hurricanes are most likely reinforced by a warmer climate, as warm ocean waters are the main criteria for the birth and growth of tropical cyclones (Henson, R. 2008). Greenhouse gases in the atmosphere cause disturbances in the air currents, making extreme weather such as coastal storms, unusual heat or cold weather (Henson, R. 2008).