LettersHow China’s zero-carbon factories can shape future of manufacturing
Readers discuss the significance of turning carbon emissions into measurable assets, American expertise in China, and making Hong Kong beautiful

Also in January, five Chinese government agencies jointly issued the Guiding Opinions on Promoting the Construction of Zero-Carbon Factories. The purpose of this isn’t to impose more environmental burdens on manufacturers; rather, it is to establish a “green balance sheet” that transforms carbon emissions from an external cost into a measurable and recognisable asset.
The deeper economic function of turning emissions into measurable assets lies in addressing information asymmetry with regard to the ownership and valuation of environmental rights. Once a factory’s carbon reductions, renewable electricity usage and other sustainability indicators are certified by third parties as standardised assets, investments such as rooftop solar panels and energy-saving equipment, previously regarded as pure costs, can begin to qualify as balance sheet assets.