Agenda 21 is based on Sustainable Development which is a radical marxist environmental/social idea.
http://www.irishspatialstrategy.ie/pdfs/Guidea.pdf
http://www.un.org/esa/agenda21/natlinfo/countr/ireland/eco.htm
http://www.environ.ie/sites/default/files/migrated-files/en/Publications/Environment/Miscellaneous/FileDownLoad%2C30452%2Cen.pdf
http://www.environ.ie/sites/default/files/migrated-files/en/Publications/Environment/Miscellaneous/FileDownLoad%2C1825%2Cen.pdf