Climate Change Research ›› 2020, Vol. 16 ›› Issue (2): 133-142.doi: 10.12006/j.issn.1673-1719.2019.275

• New Scientific Understanding on Changes and Impacts of Oceans and Cryosphere •     Next Articles

The main content and insights of IPCC special report on the ocean and cryosphere in a changing climate (SROCC)

WANG Peng-Ling1,HUANG Lei1,CHAO Qing-Chen1(),YUAN Jia-Shuang2,CHEN Chao2   

  1. 1 National Climate Center, China Meteorological Administration, Beijing 100081, China
    2 China Meteorological Administration, Beijing 100081, China
  • Received:2019-11-19 Revised:2019-12-27 Online:2020-03-30 Published:2020-04-01
  • Contact: Qing-Chen CHAO


In September 2019, IPCC released the special report on the ocean and cryosphere in a changing climate (SROCC), as the third special report of the IPCC’s sixth assessment cycle, and the IPCC’s first assessment report on the theme of ocean and cryosphere in high mountain areas and polar regions. SROCC provides comprehensive assessments on the physical changes of the ocean and cryosphere in the context of climate change and worldwide impacts and risks, the core findings are as follows: global warming has led to widespread shrinking of the cryosphere, which projected to continue, and high mountain areas and polar regions will face increased disaster risks. Global ocean has warmed unabated since 1970, and the ocean is projected to unprecedented conditions with increased temperature and further acidification, which has been impacting marine biodiversity and threatening marine ecosystem services and human systems. Global mean sea level is rising, with acceleration in recent decades, and projected to continue to rise in the coming hundreds of years, which will worsen the risk of coastal ecosystems, coasts and communities together with frequent occurrence of extreme sea level events. SROCC calls for urgent, active, coordinated and enduring adaptation and mitigation actions that are keys to effectively addressing ocean and cryospheric changes, achieving climate resilient development pathways and sustainable development goals. It is recommended to attach great importance to long-term and irreversible impacts of ocean and cryosphere in climate system change, strengthen the urgency of tackling climate change, promote adaptive capabilities in the terrestrial cryosphere and coastal areas over China, and strengthen interdisciplinary collaborative innovation to continuously enhance China’s international influences and sci-tech support in related fields, achieving the international “big science” plan led by China.

Key words: Climate change, Ocean, Cryosphere, Impacts, Risk, Response options

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