The number of IDPs is expected to rise dramatically in the coming decades. And those already displaced look likely to be joined by at least equal numbers of people forced from their homes because of climate change. The case studies in this report spell out in human detail how major internal migration crises caused by conflict have already developed in Sudan in Uganda and in Sri Lanka. The authors seek to highlight how these devastating situations are still developing with far less attention from the worlds media or the wider international community. They illustrate how over time internal displacements with their roots in conflict can mutate into disputes over land and other economic resources or hard cash. Case studies of Colombia Burma and Mali are also presented. The report highlights how solutions must start with an overhaul of the current UN system for dealing with internally displaced people. In addition it highlights that the growing problem of displacement resulting from large scale development programmes must also be addressed. Finally the authors argue that governments of rich states such as the UK must accept their countries responsibility for the growing harm and suffering that climate change will bring to developing countries and pay to alleviate it. The following issues are addressed: the hidden crisis of internal displacement; the bleak outlook of climate change; in Colombia: conflict and commerce; in Burma: war dams and power; in Mali: heat dust and climate change.