However, in environmental terms, mitigation is a project or program intended to offset known impacts on an existing historic or natural resource such as a stream, wetland, endangered species , an archaeological site or a historical site. structure. According to en.wikipedia.org/wiki, environmental mitigation is typically a part of an environmental credit system established by governing bodies that involves the allocation of debts and credits. Debits and credits are given in situations where a natural resource is believed to have been destroyed or enhanced. Charges occur in situations where a natural resource has been destroyed or severely compromised. Credits are awarded in situations where a natural resource is believed to have been enhanced or preserved. Therefore, when an entity such as a business or individual has a "debt", it is required to purchase a "credit". In some cases credits are purchased from "mitigation banks", which are large mitigation projects set up to provide credit to multiple parties prior to development when such compensation cannot be obtained at the development site or is not considered environmentally beneficial . Credit systems can allow you to generate credit in several ways. For example, in the United States, projects are evaluated based on the project's intentions, which may be to restore, create, enhance, or preserve a natural environment.