Dee ihe na-esote paragraf a - Osote Onyeisiala Biden kwukwara banyere ihe ịga nke ọma nke Compact of Mayors mgbe ọ na-ekwu okwu na November 5, 2015 na National League of Cities Congress of Cities na Nashville, Tennessee, USA. Na November 20, 2015, White House kwetara na Compact nke Mayors maka ịgafe 100 obodo ndị otu US tupu COP 21
mkparịta ụka ihu igwe na Paris.