Peer reviewed sources, academic papers, Journal articles, books on recommended reading list, specialist websites. Full topic: Indonesia has a high population density and numerous active volcanoes – many of which have erupted in the last five years. What advances have been made in the last three decades to protect people from volcanic disasters, to adapt to them and to mitigate their impacts? Evaluate the effectiveness of different strategies and approaches as they relate to the different physical processes (such as pyroclastic flow, lava, lahars, smoke and ash) that may be encountered.