Framework for Implementation of Climate Change Policy
Government of Pakistan Climate Change Division
An overwhelming majority of scientists, experts, and professional scientific organizations related to earth sciences agree that evidences are sufficient that climate change is real. Some may still deny this overwhelming judgment of science, but none can deny the devastating impact of increase in frequency and intensity of climate extremes. Further, most of the experts agree that the major cause is human activities, which include a complex interaction with the natural environment coupled with social and economic changes, that are increasing the heat trapping CO2 and other greenhouse gases (GHG) in the atmosphere, which are increasing global temperature and in turn causing
The climate system is a highly complex system consisting of the atmosphere, the hydrosphere, the Cryosphere, the
land surface and the biosphere, and the interactions between them. The climate system evolves in time under the
influence of its own internal dynamics and because of external forcings. (Source: IPCC). These interactions operate over a large span of spatial and temporal scales. Because of this complexity our understanding of climate change will always be limited.