I whakapuaki te Climate Alliance, he kāwana nō ngā kawanatanga 25 o te Hononga o Amerika, ka kaha tā rātou whakatairanga i te whakatinanatanga o te 20 miriona papu wera i te tau 2030. Ka whā ngā wā ka nui ake tēnei i te 4.8 miriona papu wera kua tāutahia ki te Hononga o Amerika i te tau 2020.

He huarahi pai ki te penapena i te hiko hei whakakapi i ngā poiha me ngā hauhautanga, ka whakamahia e ngā papu wera te hiko hei whakawhiti wera, hei whakamahana i te whare i te wā makariri i waho, hei whakamatao rānei i te wā wera i waho. E ai ki te International Energy Agency, ka taea e ngā papu wera te whakaiti i ngā tukunga hau kati kōtuhi mā te 20% ki te whakataurite ki ngā poiha hau, ā, ka taea te whakaiti i ngā tukunga mā te 80% ina whakamahia te hiko ma. E ai ki te International Energy Agency, ko ngā mahi hanga whare te 30% o te whakamahinga hiko o te ao me te 26% o ngā tukunga hau kati kōtuhi e pā ana ki te hiko.

Ka taea hoki e ngā papu wera te penapena moni a ngā kaihoko. E ai ki te International Energy Agency, i ngā wāhi he nui ngā utu hau māori, pērā i a Ūropi, mā te whai papu wera ka taea e ngā kaiwhakamahi te penapena $900 i te tau; i te Hononga o Amerika, ka penapenahia e $300 i te tau.

Ko ngā whenua 25 ka tāuta i te 20 miriona papu wera i te tau 2030 e tohu ana i te 60% o te ōhanga o Amerika me te 55% o te taupori. "Ki taku whakaaro he tika ngā Amerikana katoa, ā, kei roto i ēnei ko te tika ki te ora, te tika ki te herekore me te tika ki te whai i ngā papu wera," te kī a te Kāwana o te Kāwanatanga o Washington, a Jay Inslee, he mema o te Rōpū Manapori. "Ko te take he mea nui tēnei ki ngā Amerikana he māmā noa iho: E hiahia ana tātou ki ngā hotoke mahana, e hiahia ana tātou ki ngā raumati matao, e hiahia ana tātou ki te ārai i te pakaru o te āhuarangi i te tau katoa. Kāore he mea hou nui atu i puta mai i roto i te hītori o te tangata i te papu wera, ehara i te mea ka taea e ia te whakamahana i te hotoke engari ka taea hoki te whakamatao i te raumati." I kī a UK Slee ko te whakaingoatanga o tēnei mea hou nui rawa atu o ngā wā katoa he "pōuri" nā te mea ahakoa i huaina he "papu wera," ka taea e ia te whakamahana me te whakamatao.

Ka utua e ngā Whenua o te US Climate Alliance ēnei tāutanga papu wera mā roto i ngā whakatenatena pūtea kei roto i te Inflation Reduction Act, te Infrastructure Investment and Jobs Act, me ngā mahi kaupapa here a ia whenua o te hononga. Hei tauira, kua angitu nui a Maine i te tāutanga o ngā papu wera mā roto i āna ake mahi ture.