Geography of the European Netherlands European part of the country can be split into two areas: the low and flat lands in the west and north, and the higher lands with minor hills in the east and south. The former, including the reclaimed polders and river deltas, make up about half of its surface area and are less than above sea level, much of it actually below sea level. An extensive range of seawalls and coastal dunes protect the Netherlands from the sea, and levees and dikes along the rivers protect against river flooding. The rest of the country is mostly flat; only in the
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