Decisions made within government authorities and other large organizations are concerned with standard operating procedures, pre-assigned divisions of labour, accounting systems, organizational cultures Controversies over global change are only partly based on facts. It is true that some differences of opinion may fade with a better understanding of the global environment and the likely effects of different achievable reactions. When it became clear that the expected global warming could not cause the disintegration of the West Antarctic ice sheet over the next 50 years, the reasons for preventing flooding to slow greenhouse gas emissions weakened considerably. A response such as the construction of seems much more appropriate if the sea threatens few areas. And if we were to understand what any political option – at the local, national and international level – would achieve if implemented, some of them could be easily rejected. The response to global change can be coordinated, such as government or business association policies, which aim to take the same action by many actors, or uncoordinated, as in the case of independent actions of households or small businesses. Both types of reaction can be either proactive or post-operative; Both can have an impact either intentionally or incidentally on global change. In addition, coordinated and uncoordinated responses can be combined, as coordinated action by governments and industries can create new options for uncoordinated actors, prohibit responses, or increase or reduce costs. Research on land use systems in variable environments can help identify the characteristics of some of these systems that allow them to address environmental change. Such research can identify forward-looking strategies that enable local or regional social systems to withstand the local effects of low-cost global environmental changes, with limited requirements for civil protection systems.
The ability of Aboriginal land use and crisis management systems to reduce the link between drought and famine depends on various factors that support Aboriginal systems. These include the diversity of economic opportunities, the absence of wars and an appropriate national and international migration policy.