Evidence is growing that some weather events are likely to become more frequent, more widespread and more intense during the last fifty years in Sri Lanka.As a result, Sri Lankans have being exposed to impacts of the climate change through changing weather patterns, which directly or indirectly cause changes in water quality and quantity, ambient air quality, food quality and quantity, ecosystems and biodiversity, agriculture and post harvest practices, livelihood and infrastructure,socio-economy, archeological monuments, etc.