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Tropical deforestation: In most cases of tropical deforestation, three to four underlying causes are driving two to three proximate causes. [19] This means that a universal policy for controlling tropical deforestation would not be able to address the unique combination of proximate and underlying causes of deforestation in each country. [19]
The cause of most of the biodiversity loss is, generally speaking, human activities that push the planetary boundaries too far. [ 1 ] [ 2 ] [ 3 ] These activities include habitat destruction [ 4 ] (for example deforestation ) and land use intensification (for example monoculture farming).
In these areas, the loss of grass due to the presence of trees and other shrubbery leads to more erosion than when trees are removed. [207] Soils are reinforced by the presence of trees, which secure the soil by binding their roots to soil bedrock. Due to deforestation, the removal of trees causes sloped lands to be more susceptible to landslides.
The growing demand for meat is contributing to significant biodiversity loss as it is a significant driver of deforestation and habitat destruction; species-rich habitats, such as significant portions of the Amazon region, are being converted to agriculture for meat production.
Summary of major biodiversity-related environmental-change categories expressed as a percentage of human-driven change (in red) relative to baseline (blue) It has been estimated that from 1970 to 2016, 68% of the world's wildlife has been destroyed due to human activity. [131] [132] In South America, there is believed to be a 70 percent loss. [133]
Forest loss is acute in Southeast Asia, [42] the second of the world's great biodiversity hot spots. [43] According to a 2005 report conducted by the FAO, Vietnam has the second highest rate of deforestation of primary forests in the world, second to only Nigeria . [ 44 ]
The loss and fragmentation of habitats makes it difficult for migratory species to find places to rest and feed along their migration routes. [24] The effects of current fragmentation will continue to emerge for decades. Extinction debts are likely to come due, although the counteracting immigration debts may never fully be paid.
Deforestation in the United States was affected by many factors. One such factor was the effect, whether positive or negative, that the logging industry has on forests in the country. Logging in the United States is a hotly debated topic as groups who either support or oppose logging argue over its benefits and negative effects.