Certification of green building materials is a proven and effective way to incorporate, at large scale, products that are energy efficient, have minimal ill effect on indoor air quality, and/or have other green attributes into buildings. Recently, the General Office of the State Council of China, in order to increase the supply of high-quality green products into the buildings market, issued guidance on developing a uniform system for green product standards and certification by 2020.
Building energy efficiency is an important strategy for reducing greenhouse gas emissions globally. In fact, 55 countries have included building energy efficiency in their Nationally Determined Contributions (NDCs) under the Paris Agreement. This research uses building energy code implementation in six cities across different continents as case studies to assess what it may take for countries to implement the ambitions of their energy efficiency goals.