The 21th Century is the setting as consequences from extractive development intensive using of fossil fuels and inequitable. These global environmental changes are products experienced, forming "societies at risk" because these are presented in a turning point at a rate that exceeds natural processes of adaptation and forcing pressures deepen gaps extreme inequality and deterioration for human life and its environment.

The States structure, the success of "development", modernity and social behaviour "postmodern" accelerated processes of environmental degradation and disrupt the global climate system, overcoming vulnerability in their physical, social, economic and environmental dimensions. Therefore, decisions at the international level will have their effect on the consequences in different countries. International policies to stabilize the climate system are challenging to achieve significant reductions of greenhouse gases especially within their countries.