Eco-efficiency has been described as doing more with less. It involves minimizing waste, pollution and natural resource depletion (thus incorporating the concept of pollution prevention). Eco-efficiency is probably the easiest way to go, as well as the logical follow-up to the progress that has been made in the area of environmental management. Began with an era of no regulation followed by an era of regulation and strict compliance. After which is coming a time of "beyond compliance", where businesses are finding that it can be to their benefit to not just adhere to the letter of the law, but to go beyond it.