Total population residing in urban areas. Because of national differences in the characteristics that distinguish urban from rural areas, the distinction between urban and rural population is not ame
Sewage sludge can be of domestic or mixed (industrial plus domestic) origin, depending on the type of network feeding the public treatment plants. Alongside its fertilizer value for crops, sewage slud
The purpose of this data set is to provide paleoclimate researchers with a tool for estimating the average seasonal variation in sea-ice concentration in the modern polar oceans and for estimating the
