All these ambient countable facts are launched inside of an Ambient Chart of accounts, based in the method of the double entries, already of use consecrated in the Conventional Accounting, thus producing, countable documents that they express monetarily, all the inference that the company produces to the environment, as well as the inference of the environment on the activities of the company. As it can be verified, the EIA/RIMA can be an extremely efficient instrument in the assembly of an ambient countable system for the corporations whose activities, of some form, impactam the way environment. 2.6. The CHALLENGES OF the CORPORATIONS With regard to the AMBIENT ACCOUNTING the challenges that the corporations face with regard to the ambient accounting are compatible with the difficulty that a new science faces in the establishment of its standards of reference and modeling of work. The question of the ambient valuation is, without a doubt, the main challenge to be faced by the corporations. Either for the functional values, for the intangible or same evaluation of for the analysis of the operations Input/Output in all its dimensions, the inherent difficulties to the process of ambient valuation become extremely complex and of difficult unanimous acceptance for the most varied stakeholders.
Moreover, the valuation of the intangible ones as the natural services given by the environment is of a complexity such that the divergences between stakeholders does not allow that a common consensus exists on the subject. Still how much to the ambient valuation, a new challenge appears for the corporations. The Economics is about the TEEB of Ecosystems and Biodiversity, that is: The Economy of Ecosystems and Biodiversity. Co-ordinated for Indian economist Pavan Sukhdev, the TEEB was launched in reply to the proposal of the ministers of environment of the G8+5, in Germany, in 2007, to develop a global analysis on the economic impact generated by the losses of biodiversity. Although the objective is the elaboration of reports ori