Korea has instituted a unique nationwide voluntary program for the last three years to encourage citizens to reduce their carbon footprints. It is called the Carbon Neutral Point System (CNPS) and aims to reduce greenhouse gasses (GHGs) by 5% nationwide through energy use savings. CNPS uses serialized meters to track electricity, water and gas consumption. Individual homes, schools, commercial buildings and apartments can all participate. Points are awarded by comparing standard usage estimated with actual consumption. Cash and gift cards are sent. Cash equivalent payouts topped over U.S. $10 million this year.