For central heat, China has a north-south divide at Qin-Huai line - Los Angeles Times

Growing up in Mao Tse-tung's hometown of Shaoshan in southern China, Tan Huiyan remembers the wintertime sensation of stepping inside through her front door — and into the cold.
When it comes to government-provided central heating, China is a land of haves and have-nots.

Economic history of China before 1912 - Wikipedia

Air pollution, behavioral bias, and the disposition effect in China - ScienceDirect

Packed ICUs, crowded crematoriums: COVID roils Chinese towns - Los Angeles Times

China - Wikipedia

History of the Han dynasty - Wikipedia

Analysis of thermal comfort experience using peak-end rule with air conditioner in heating season - ScienceDirect

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Analysis of thermal comfort experience using peak-end rule with air conditioner in heating season - ScienceDirect

What is the difference between a Northern Chinese Mantou and a Southern Chinese Mantou? - Quora

PDF) New Evidence on the Impact of Sustained Exposure to Air Pollution on Life Expectancy from China's Huai

Ecological Change and Resource Constraints (Chapter 7) - The Cambridge Economic History of China