This report provides an Options Analysis for a South Asia regional programme on climate services for risk reduction and economic growth. It is the fourth output of a scoping project, which has reviewed evidence on climate services, early warning systems and disaster risk reduction in selected countries: Afghanistan, Pakistan, Bangladesh, India, Nepal and Burma. It considers four options for DFID investment with different emphases on the ‘supply’ or ‘demand’ side of climate information provision and use, the choice of sectors, geographical focus and finally the appropriate delivery mechanisms for implementing the programme. The proposed investments range from £5 million to £145 million. The lowest cost options involve small-scale research and innovation projects with targeted support to country offices or existing donor programmes, whereas the larger options include significant capital expenditure on weather observations and investment in national hydrological and meteorological services.