Rubuta ci gaba don wannan sakin layi - A Babban Taron Copenhagen na 2009, kasashe sun himmatu ga burin aika da dala biliyan 100 a kowace shekara ga kasashe masu tasowa don rage sauyin yanayi da daidaitawa zuwa 2020. An kirkiro Asusun Green Climate a shekarar 2010 a matsayin daya daga cikin hanyoyin da za a tara wadannan kudaden sauyin yanayi. A taron Paris na shekarar 2015
, an fayyace cewa dala biliyan 100 a kowace shekara ya kamata ya haɗa da daidaitaccen rabuwa tsakanin ragewa da daidaitawa., ba a cika cika dala biliyan 100 da aka yi alkawarinsa a kowace shekara ba, kuma har yanzu ana ba da mafi yawan kuɗin ƙasashe masu tasowa don ragewa, tare da daidaitawa kawai yana karɓar kashi 21% na kuɗin kuɗin jama'a da aka bayar a cikin 2020.