Xi Jinping Thought on “ecological civilisation” is a “significant part” of Xi Jinping Thought and the “scientific guideline” for building what Xi calls a “beautiful China” with an “ecological civilisation”, according to state-run newspaper China Daily. The concept is often cited as a foundation for new policies focused on environmental protection and “green” development. “Ecological civilisation” refers to a civilisation form in which human beings and nature “coexist harmoniously” – a notion highly promoted by Xi. He famously said: “Lucid waters and lush mountains are invaluable assets.” (Xi’s “two-mountains” theory.) The metaphor represents Xi's order to combine “ecological civilisation” into all aspects of the nation’s development, as explained by the People's Daily, the official newspaper of the Communist party. (For more, see Carbon Brief’s “Analysis: Nine key moments that changed China’s mind about climate change”.)