The key message of this report is as follows: Cambodia is highly vulnerable to the effects of climate change on fisheries, which supply livelihoods for millions and up to 80 per cent of all animal protein in the diet. Changes in fishery production are likely to have the greatest impact on the people most dependent on fisheries, whose poverty, marginalization and lack of livelihood alternatives leave them ill-equipped to cope. Building fisher communities' capacities to adapt to immediate environmental change, partly by diversifying livelihoods and improving access to natural resources, goes hand-in-hand with improving their long-term capacity to adapt to climate change.