Delta Works needed level of flood protection and the resulting costs are a recurring subject of debate, and involve a complicated decision-making process. In 1995 it was agreed in the Delta Plan Large Rivers and Room for the River projects that about 500 kilometres of insufficient dyke revetments were reinforced and replaced along the Oosterschelde and Westerschelde between 1995 and 2015. After 2015, under the High Water Protection Program, additional upgrades are made. In September 2008, the Delta Commission presided by politician Cees Veerman advised in a report that the Netherlands would need a massive new building program to strengthen the country's
Adaptation to global warming in Australia management and power generation facilities. Coastal regions are likely to need large investment in physical infrastructure projects, specifically projects related to the effects of rising sea levels. Projects such as the construction of protective barriers against rising sea levels, the building of dams to retain and manage water, the redesign and development of port facilities and the improvement of the defence systems at coastal areas should be carried out. Another measure of adaptation is the construction of new cities on higher ground, withdrawing the population away from vulnerable floodplains. This withdrawal would probably be managed over time, and may require