Drawing upon the two Postulates and seven Axioms of global climate change outlined in Chap. 4, this book embraces global carbon neutrality as its paramount goal, with the vision of Building a Community with a Shared Future for Mankind. It endeavors to deduce and identify the most effective pathway towards this goal, amidst the prevailing international consensus, and subsequently introduces an innovative Carbon Emission Liability Mechanism (CELM). The CELM, rooted in a global perspective, establishes two fundamental assumptions and three basic principles, thereby paving the way for the establishment of a novel global carbon neutrality system and fostering a fresh international order centered on carbon emission reduction.