NgoSeptemba, iSikhululo soPhando sasePacific Northwest sakhupha ingxelo yayo "Ukubala iGreen in Green: Yintoni iUrban Tree Worth?". Uphando lwagqitywa eSacramento, CA nasePortland, OR.
UGeoffrey Donovan, ihlathi lophando kunye neSikhululo soPhando se-PNW, unqume ukuba imithi etyalwe emazantsi nasentshona yezindlu zaseSacramento yanciphisa amatyala ombane wexesha lasehlotyeni ngomyinge we-$25.16. Kwisifundo sesibini ePortland, iqela likaDonovan lifumene ukuba imithi yesitrato ekhulayo phambi okanye kufuphi nendlu yongeza i-avareji ye-8,870 yeedola kwixabiso layo lokuthengisa kwaye yanciphisa ixesha layo kwimarike malunga neentsuku ze-2. Ezi nzuzo zezoqoqosho zichithekile kwiipropati ezikufutshane: umthi wommelwane okhulayo ecaleni kwendlela yoluntu yongeza umyinge we-12,828 yeedola kwixabiso elidibeneyo lazo zonke izindlu ngaphakathi kweenyawo ze-100.
Unokufunda isifundo esipheleleyo Apha.