able ▁development ▁is ▁being ▁carried ▁out ▁in ▁many ▁international ▁and ▁national ▁settings . ▁Even ▁sup ra - n ational ▁policy ▁bodies ▁like ▁the ▁United ▁Nations ▁and ▁the ▁O E CD ▁have ▁spons ored ▁work ▁address ing ▁account ing ▁for ▁sust ain ability . ▁Up ▁till ▁now ▁environmental ▁account ing ▁is ▁the ▁most ▁evol ved ▁form ▁of ▁sust ain ability ▁account ing ▁and ▁increasing ly ▁processed ▁in ▁the ▁academic ▁circle ▁beginning ▁with ▁the ▁work ▁of ▁Robert ▁Hugh ▁Gray ▁in ▁the ▁early ▁ 1 9 9 0 s , ▁and ▁through ▁the ▁release ▁of ▁the ▁S ust ain ability ▁Account ing ▁Gu idel ines ▁at ▁the ▁World ▁Sum mit ▁on ▁S ust ain able ▁Development ▁in ▁ 2 0 0 2 . ▁ ▁Due ▁to ▁the ▁use ▁of ▁different ▁frameworks ▁and ▁methods , ▁much ▁uncertainty ▁remains ▁how ▁this ▁ag enda ▁will ▁develop ▁in ▁the ▁future . ▁What ▁is ▁certain ▁ ▁is ▁that ▁there ▁is ▁belief ▁that ▁past ▁economic ▁development ▁and ▁the ▁current ▁human ▁( and ▁hence ▁business ) ▁activities ▁are ▁not ▁sust ain able , ▁which ▁has ▁led ▁to ▁question ing ▁the ▁current ▁mode ▁of ▁development . ▁Rec ent ▁years ▁have ▁seen ▁an ▁increasing ▁accept ance ▁and ▁even ▁enthus ias m ▁for ▁these ▁new ▁reporting ▁approaches . ▁Ener get ic ▁and ▁innov ative ▁experiment ation ▁by ▁far - s ight ed ▁organis ations ▁state ▁that ▁sust ain ability ▁aspects ▁in ▁account ing ▁and ▁reporting ▁are ▁cru cially ▁important , ▁feas ible ▁and ▁pract ic able ▁as ▁well . ▁In ▁this ▁respect , ▁the ▁International ▁Federation