Climate Change Research ›› 2022, Vol. 18 ›› Issue (6): 743-755.doi: 10.12006/j.issn.1673-1719.2022.019

• Adaptation to Climate Change • Previous Articles     Next Articles

A review of climate change and its impact and adaptation in Beijing-Tianjin-Hebei urban agglomeration

WANG Yu-Jie1,2(), LIN Xin2   

  1. 1 Key Laboratory of Meteorological Disaster, Ministry of Education/International Joint Research Laboratory on Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China
    2 School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044, China
  • Received:2022-01-24 Revised:2022-03-21 Online:2022-11-30 Published:2022-07-11

Abstract:

In this study, the research results on the climate change and its impact as well as adaptation in the Beijing-Tianjin-Hebei (BTH) urban agglomeration since 2000 are systematically summarized. The results show that the annual average temperature and extreme high temperature of BTH urban agglomeration have obviously increased, and annual precipitation has weakened since 1960s. Meanwhile, the extreme precipitation index has decreased until the 2010s. The climate change in the BTH is jointly affected by global warming, and urbanization. Urbanization has accelerated the warming trend in the BTH, increased the frequency and intensity of extreme high temperature and extreme heavy precipitation, and thus resulted in high climate risk. Under the RCP4.5 scenario, it is projected that the extreme high temperature index and the extreme heavy precipitation index will increase in the BTH in the middle and late 21st century. When the global temperature rises by 1.5℃ in the future, the risk of high-intensity extreme warm events will increase by nearly three times, and the risk of high-intensity extreme precipitation events will increase by nearly two times. In the future the coordinated development of BTH urban agglomeration will face more severe risks such as high temperature and heat wave, heavy precipitation, water shortage and sea level rise. Therefore, it is quite urgent for the BTH urban agglomeration to adapt to climate change, so as to maintain the sustainable development. At present, huge progress has been made in the adaptation strategies, but there are still some deficiencies in their applicability and pertinence. This study puts forward the prospects for future research. The feedback of urbanization on climate change should be deeply investigated. The refined projection technology of climate risk under the joint effect of global climate change and urbanization should be developed. The systematical impact studies of climate change on cities and the vulnerability of different industries need to be conducted. The greenhouse gas monitoring and evaluation technology should be strengthened. The strategies, paths and technologies to adapt to climate change should be further studied.

Key words: Climate change, Impacts, Adaptation, Beijing-Tianjin-Hebei

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