The Mekong Delta has been identified by the International Panel on Climate Change as one of the three most vulnerable areas in the world as sea levels rise due to climate change. The Vietnam Government has implemented a range of policies to assist migration in order to address these environmental problems. While much research has focused on the environmental causes of, and responses to, climate change there has been less research on the impact of environmentally motivated responses to climate change on labour force and human capital factors. This paper examines the experience of the Vietnam Government in encouraging internal migration from vulnerable agricultural areas to urban industrial cities, to explore the human capital effects of these environmentally motivated response to climate change. The paper first presents the environmental argument for migration in response to climate change, together with examples of what the Vietnam Government has done to encourage migration from the rural (originating) areas to other rural resettlement and city (receiving) areas. It then uses data collected as part of recent study into the impact of government encouragement for internal migration to explore the labour force and human capital impacts in both the originating region and receiving areas. The findings suggest that while there are social and economic advantages there are challenges, including ensuring that job opportunities are available, migrants and appropriate skills, and that labour contracts provide for job security and healthy and safe working result in improved living conditions. To address these challenges, this paper proposes a more integrated approach that acknowledges and addresses associated human capital (skills upgrading) and business development needs and integrates these with environmentally-motivated policies.