Geography of Belgium have repercussions for neighboring countries; uncertainties regarding federal and regional responsibilities (now resolved) have slowed progress in tackling environmental challenges. The main cities in Belgium in terms of population are Brussels, Antwerp, Ghent, Charleroi and Liège. Other notable cities include Bruges, Namur, Leuven, Mons and Mechelen. Geography of Belgium Belgium is a federal state located in Western Europe, bordering the North Sea. Belgium shares borders with France (556 km), Germany (133 km), Luxembourg (130 km) and the Netherlands (478 km). Belgium comprises the regions of Flanders, Wallonia and Brussels. Total renewable water resources: 18.3 cu km (2011) Freshwater withdrawal (domestic/industrial/agricultural):
Lists of organisms by population Lists of organisms by population This is a collection of lists of organisms by their population. While most of the numbers are estimates, they have been made by the experts in their fields. Species population is a science falling under the purview of population ecology and biogeography. Individuals are counted by census, as carried out for the piping plover; using the transect method, as done for the mountain plover; and beginning in 2012 by satellite, with the emperor penguin being first subject counted in this manner. More than 99 percent of all species, amounting to over five billion species, that