Governments must invest more in preventing climate change-related conflict or else face myriad crises around the world as global warming triggers disputes and exacerbates existing insecurity, the United Nations warned in a report launched on Monday.

Water scarcity, falling crop yields, rising sea levels, more frequent extreme weather events and mass migration are just some of the potential sources of tension if governments do not develop and implement a credible strategy to combat climate change, described the UN Environment Programme study released on the sidelines of climate negotiations in Bali, Indonesia.