At a time, when other countries were cutting back on their environmental regulations to make room for easier economic growth, South Korea bucked the trends and doubled down on environmental sustainability. 80% of Korea's economic development package went toward companies promoting what they have dubbed "green growth." They are investing heavily in research and infrastructure that will make the whole nation more efficient.
One of the benefits of being a mid-sized nation with a history of autocracy is that nationalized policies are easier to implement. South Korea's style of environmental regulations and benefits would be nearly impossible to duplicate in the fractured federalism of the USA. However, every nation should take their cues from Korea's basic philosophy of investing in environmentally friendly business and in the up-and-coming industry of environmentalism (alternative energy, recycling, etc). It's not only good for the globe. It's also good business!