ABSTRACT
This chapter presents a very brief overview of the impacts of climate change on water and relevant sectors in South Asia. It provides an overview of the basic concepts and science of climate change. The chapter includes the observed changes in the climate system and the parameters in South Asia including Bangladesh. It describes the impacts of climate change on water resources and the connected ecosystems in South Asia with special reference to Bangladesh. The chapter also provides an overview on the global and regional responses to address climate change. Climate Change is basically the changes of climate over a time period that usually ranges from decades to centuries. Most of the climate models estimate that precipitation will increase during the summer monsoon because they estimate that air over land will get warmer than air over oceans in the summer. The rapid growth of population in South-Asia is putting additional pressure on the natural resources including water.
