The FT shows a general trend, and extrapolation of historical rates therefore tends to underestimate future business-as-usual deforestation for early transition countries, while tending to overestimate BAU deforestation for later stage countries (LFHD and LFLD). (ii) a path of economic development where new and better non-agricultural employment opportunities linked to economic growth (= increase in GDP per capita) reduce the profitability of marginal agriculture and slow deforestation. [56] Paragraph 4. External assistance to countries that have committed to eradicating deforestation. Corruption linked to illegal logging weakens the rule of law and fuels the cycle of cross-border crime. Global deforestation[185] accelerated sharply around 1852. [186] [187] In 1947, the planet had 15 to 16 million km2 (5.8 million to 6.2 million square miles) of mature tropical forests,[188] but by 2015 it was estimated that about half of them had been destroyed. [189] [19] [190] The total area of tropical rainforest has decreased from 14% to 6%. Much of this loss occurred between 1960 and 1990, when 20% of all tropical rainforests were destroyed. At this rate, the extinction of these forests is predicted by the middle of the 21st century. [158] In deforested areas, the land warms faster and reaches a higher temperature, resulting in localized upward movements that amplify cloud formation and ultimately produce more precipitation. [74] However, according to the Geophysical Fluid Dynamics Laboratory, models used to study remote responses to tropical deforestation have shown a large but slight temperature increase throughout the tropical atmosphere. The model predicted air warming of <0.2°C above 700 mb and 500 mb.

However, the model shows no significant changes in areas other than the tropics. Although the model did not show significant changes in climate in regions other than the tropics, this may not be the case because the model has potential errors and the results are never absolutely clear. [75] Deforestation affects wind flows, water vapor flows, and solar energy absorption, significantly affecting local and global climate. [76] MI 19. In the nineteenth century, the introduction of steamships to the United States was the cause of deforestation of the banks of major rivers such as the Mississippi, with increasing and more severe flooding being one of the environmental consequences.