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[[File:F8bc126e4916174fb46b10.jpg|thumbnail|left|250px|Figure 1. Villages such as Banpo reveal an emerging food production economy that revolved around climate evolution.]]__NOTOC__Climate does not only sometimes push societies to leave their major cities, which some call collapse, but it also helps societies adjust to a new normal, where food production and even tastes begin to modify based on climate. This is evident in China, where ancient China often did not resemble more recent periods in regards to climate and environmental conditions. Nonetheless, these changes have enriched and brought different layers of social change on in Chinese society that have influenced modern China. We can see that modern societies are sometimes composed of layers of different past social but also environmental change that forges new social identities.
====Rise of Chinese Complex Societies and Climate====During the long Neolithic period in China (from around 8500-2000 BC), as agriculture began to develop, different types of societies and food production practices formed that focused on millet, in western and central China, and rice, which became more common in central and eastern China. In central China, in particular, evidence indicates a shift between millet and rice, where millet is a more hardy crop that can be cultivated in drier periods. In other provinces, there are shifts between rice cultivated in flood agriculture and a mixture of using rice and millet. Both taste and climate-induced changes are likely likelily co-occurring in the record, where communal and household-based strategies are also shifting in response to social and climate change that co-occurs. Many of these changes are apparent in central China because it is a region prone or more vulnerable to relatively minor shift in the climate.
==More Recent Climate Change==Chinese Dynasties and Empires====[[File:King Kang of Zhou.jpg|thumbnail|left|250px|Figure 2. King Kang of Zhou was seen as bringing a prosperous period to China, where favorable climate conditions likely helped.]]During the Shang Dynasty (1600-1000 BCE), researchers have stated the climate became generally warmer. However, there were periodic cooling and likely drier conditions in eastern China. At around 1100 BC, the Shang became weaker as they had to deal with more harvest failures. However, the Shang could have adapted to this and may have withstood such change. Rather, the Zhou, who conquered the Shang and who lived west of the Shang, may have invaded as they felt their societies faced greater threats due to cooling conditions.
After the cooling at around 1100 BCE, climate likely returned to more favorable conditions and the Zhou may have become the long-lived dynasty in Chinese history in part due to more favorable conditions. The Zhou portrayed themselves as bringers of stability, where during the 1st millennium BCE climate conditions did generally become stable.<ref>For more on the Shang and Zhou rivalries, see: Marks, R. (2012). <i>China: its environment and history</i>. Lanham, Md: Rowman & Littlefield.</ref> <dh-ad/> Nevertheless, long-term warmer conditions did last until about 350 CE, covering nearly eight dynasties and ending around the Six Dynasties period. During warmer periods, citrus, such as oranges, may have made their way to China and began to be incorporated into diets. Subtropical herbs and spices were also likely introduced in periods when warmer conditions prevailed, as these plants were more easily grown in northern regions that allowed the major centers of China, such as the city of Chang'an in the Han Dynasty. After 350 CE, much colder conditions became evident in northern China, with much harsher winters. This may have led to the development of ice houses for the first time, which allowed better preservation of food and allowed it to be kept longer. This also likely led tastes in food to change back away from the subtropical foods that could have been grown in other parts of China (Figure 2).<ref>For more on food and technology related to climate, see: Chambers, F., & Ogle, M. (Eds.). (2002). <i>Climate change: critical concepts in the environment</i>. London ; New York: Routledge.</ref> ====More Recent Climate Change====Overall, over the last two thousand years, the climate has continued the long-term drier and colder conditions in parts of eastern China, where there is evidence this has led to greater evidence for more periodic locust, famine, and drought occurrences. There has also been higher incidents of epidemics when flood conditions become evident, presumably as bacteria thrive better in warmer and moister conditions.<ref>For more on the relationship between climate and epidemics and different events, see: Tian, H., Yan, C., Xu, L., Büntgen, U., Stenseth, N. C., & Zhang, Z. (2017). Scale-dependent climatic drivers of human epidemics in ancient China. <i>Proceedings of the National Academy of Sciences</i>, 114(49), 12970–12975. https://doi.org/10.1073/pnas.1706470114</ref> Climate also affected politics over the last two thousand years. The Ming dynasty, lasting until 1644, began to experience greater difficulties in the 16th and early 17th centuries as records show. Peasant rebellions, perhaps triggered by poor harvests, led to the government being defeated and ultimately collapsing. In earlier periods that were more favorable climatically, a military farming system ensured the government's troops were well supplied and provisioned. However, that system began to fail already in the 16th century. During that time, greater military expenditure was required, showing that more money from the central government was needed to ensure the military's readiness. By the early 17th century, the government was in crises as peasants were unable to pay their taxes, which were heavy, to support the increased military expenditures. This loss of revenue was compounded by failed harvests that affected the peasants and government. In effect, a system of military provision had collapsed, forcing the burden on peasants, who themselves were overtaxed and ultimately they revolted against the government that had created the system in the first place.<ref>For more on the Ming dynasty, see: Zheng, J., Xiao, L., Fang, X., Hao, Z., Ge, Q., & Li, B. (2014). How climate change impacted the collapse of the Ming dynasty. <i>Climatic Change</i>, 127(2), 169–182. https://doi.org/10.1007/s10584-014-1244-7</ref> ====Summary====Climate has played an important role in Chinese history, from affecting food taste to changing society and leading to rebellion. Climate does not always lead to social collapse, but it can lead to a chain reaction of events that have momentous change. This includes dynasties being created or disease affecting the population. What ancient China shows us is that climate has been a key background element in the evolution of societies, a lesson which we can take to heart in our modern world. ====References====<references/> [[Category:History of Science]][[Category:Chinese History]][[Category:Wikis]][[Category:Environmental History]]{{Contributors}}