This article aims to explain about main climate policy around the world and some analyses especially in the EU. The Millennium Development Goals, which was first systematically integrated the problems of nearly all aspects from human beings to nature from 2000 to 2015. The United Nations improved and issued the Sustainable Development Goals which is more targeted and detailed in some aspects such as environmental protection. EU has a long history of climate change, launched the European Trading System and set “the trading market of carbon” which is a great reference for other countries.