Deforestation Mechanisms and Sustainable Solutions

Tropical deforestation is a global environmental problem and a major source of greenhouse gas emissions. Efforts to halt deforestation have been promoted worldwide, but they have not met the initial expectations. Effective efforts require an understanding of the causes of deforestation and the adoption of appropriate strategies. Deforestation mechanisms can be explained by three factors: poverty, agricultural rent (agricultural profitability), and forest scarcity. Poverty, the chief underlying cause, has the strongest impact on deforestation. The main proximate causes (e.g., road construction and expansion of export crops) are related to the increase in agricultural rent. In contrast, forest scarcity is an important factor that decreases deforestation. Deforestation rates would be high if all the three conditions coexisted at high rates, i.e., high poverty rate, high increase in agricultural rent, and high forest coverage. The current efforts to decrease deforestation mainly focus on lowering agricultural rent, which can be effective but may be unsustainable due to the high costs and social impacts. Studies have shown that poverty reduction strategies can sustainably reduce deforestation and, to this end, global efforts need to shift from agricultural rent reduction to poverty reduction. Sustainable solutions to tropical deforestation require multifaceted strategies to reduce poverty rates in developing countries. In particular, it is necessary to develop comprehensive social infrastructure (agriculture, health care, education, etc.) to support impoverished populations in overcoming poverty.