The Million Tree Initiative naezo aka na ọrụ gburugburu ebe obibi naaga nihu nke ọtụtụ obodo naetinye aka notu notu, naezube ịbawanye ọhịa obodo ukwu site na ịkụ otu nde osisi. Obodo ndị a maara na ha naetinye aka ugbu a na atụmatụ a bụ: Los Angeles, Denver, New York City, Shanghai, London, Ontario, na Amherst, New York. Otu ebumnuche a naekerịta netiti obodo ndị a naekere òkè bụ, dịka nkwupụta ebumnuche ha si dị, mbelata nke carbon dioxide na ikuku iji belata mmetụta nke okpomọkụ ụwa.
Na Mee 2006, Onye isi obodo Antonio Villaraigosa mere Million Trees LA otu nime nkwa mkpọsa ya. Ọrụ Los Angeles naenweta ego site na ngwakọta ego gọọmentị etiti na ego obodo, ọrụ ebere, na onyinye ụlọ ọrụ. Ọ bụ otu nime ndị mmeri iri anọ site na mmadụ 200 a họpụtara iji nweta onyinye gburugburu ebe obibi nke United States Environmental Protection Agency (EPA) na 2009.[1]
The Mile High Million, atụmatụ nke onye isi obodo John Hickenlooper malitere, bụ mmemme yiri nke ahụ na Denver, Colorado. Hickenlooper mara ọkwa nke a na 2006 State of the City Address.
Nabalị iri abụọ na abụọ nọnwa Eprel nafọ 2007, onye isi obodo Michael Bloomberg kpughere ebumnuche nke ịkụ otu nde osisi site nafọ 2017 dị ka akụkụ nke PlaNYC, atụmatụ e mere maka nkwado nke New York City.[2] Notu afọ ahụ, China malitere mmemme ịkụ osisi nke ya maka Shanghai, na otu ebumnuche maka otu nde osisi.
Usoro ihe omume nke ọtụtụ nde osisi malitere na London na 2011.