The Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11 consists of estimates of human population density (number of persons per square kilometer) based on counts consistent with national censuses and population registers, for the years 2000, 2005, 2010, 2015, and 2020. A proportional allocation gridding algorithm, utilizing approximately 13.5 million national and sub-national administrative units, was used to assign population counts to 30 arc-second grid cells.
Household waste composition in Niue from studies in 2000 and 2010. Source Niue's Asset Management Plan Section – N, 2016 Extracted from Niue's 2018 SOE
Institutional arrangement for waste management in Niue. Extracted from Niue's 2018 SOE
Sewage disposal system available in country. Source 2011 Census. Extracted from Niue's 2018 State of Environment (SOE) report
Sources of GHG emissions. Source 1st National Communication UNFCCC 2000. Values corrected based on 2nd National Communication UNFCCC 2014. Tables and other information extracted from Niue's 2018 State of Environment (SOE) report
Type of roofing material by Niuean villages. Source 2011 Census. Extracted from Niue's 2018 State of Environment (SOE) report
Data on number of recycled cans per year
Data on threats or activities which threaten Niue's Groundwater
Data on Niuean Population extracted from Census for different years