The year 2011 highlighted ongoing challenges to global food security, from food price volatility, extreme weather shocks, and famine to unrest and conflicts. On the policy front, major devel­opments at the global and national levels both offered grounds for encouragement and pointed to areas where further action is needed.

In 2011 two United Nations bodies adopted ambitious goals for halting land degradation and achieving sustainable development. These goals will be difficult, but not impossible, to meet. The evidence presented here suggests several avenues for achieving a world with no land degradation. First, efforts to promote sustainable land management need to improve local and national governance while also enhancing international cooperation.

As the population continues to grow and natural resources become scarcer, the need to shift toward an environmen­tally responsible, socially accountable, more equitable, and “greener” economy has become increasingly apparent. Despite differing perspectives and definitions among stakeholders, the “green economy” is often seen as an economy that pursues growth while also promoting sustainable development through more efficient use of resources.

Desde 2007, se produjeron dos rondas de picos de los precios de los alimentos que han contribuido a que al hambre y la malnutrición de millones de personas.

The year 2011 highlighted ongoing challenges to global food security, from food price volatility, extreme weather shocks, and famine to unrest and conflicts. On the policy front, major devel­opments at the global and national levels both offered grounds for encouragement and pointed to areas where further action is needed.

Depuis 2007, deux séries successives d’envolée des prix des denrées alimentaires ont causé la faim ou la malnutrition pour des millions de personnes dans le monde. Les mêmes facteurs qui avaient contribué à la hausse des prix en 2007-2008 ont refait surface en 2011 et ont pour nom : la baisse du taux de croissance de la productivité agricole, le niveau élevé du coût de l’énergie favorisant l’expansion de la production de biocarburants, la dépréciation du dollar américain, une forte demande des pays émergents en matière de produits agricoles et les bouleversements climatiques.