Many factors such as poverty, ineffective institutions and environmental regulations may prevent developing countries from managing how natural resources are extracted to meet a strong market demand. Extraction for some resources has reached such proportions that evidence is measurable from space. We present recent evidence of the global demand for a single commodity and the ecosystem destructi...

In this paper, I examine several market liberalization measures taken in Mexico in the first half of the 90’s and their impact on municipalities’ migration incidence. Specifically, I look at events that affected generally small agricultural producers of basic crops, such as the removal of price supports and input subsidies, changes in laws governing the property rights of communal landowners an...

many studies conclude that the rise in global food prices due to higher demand from the development of biofuels, climate anomalies, and increased of oil prices. not only the food commodity index rose more than 60 percent, nonfood commodity price index also rose over 60 percent and crude oil price index has increased even further above 60 percent. the purpose of this study is to analyze the impa...

This paper presents a simulation model to project land-cover changes at a national scale for Sudano-sahelian countries. The aim of this study is to better understand the driving forces of land-use change and to reconstruct past changes. The structure of our model is heavily determined by its spatially aggregated level. This model represents, in a dynamic way, a simplified version of our current...

Africa is a major hotspot of food insecurity with climate change and population growth as drivers. Irrigation expansion can sustainably increase agricultural productivity adapt crops to change. We use agro-hydrological, climate, socio-economic models quantify crop production irrigation perform security analyses for different adaptation scenarios African countries under baseline 3°C warmer condi...

In our globalizing world, the geographical locations of food production and consumption are becoming increasingly disconnected, which increases reliance on external resources and their trade. We quantified to what extent water and land constraints limit countries’ capacities, at present and by 2050, to produce on their own territory the crop products that they currently import from other countr...

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This paper emphasizes the benefits of an agricultural strategy of development in developing countries. It begins by analyzing the close links between food and employment in the development process. In an underdeveloped country, food production is minimal, but demand is as well because of the small population growth. After development begins, income rises and food demand outstrips production....

Deforestation contributes about 18% of all carbon emissions and leads to species extinction. In the context of climate change negotiations, international community agreed to compensate efforts made by countries toward forest protection. Forest covers approximately 80 % of the Congo basin with more than half classified as dense forest. It is estimated that Congo Basin rainforest has been rather ...