Sino-US Cooperation on Ocean Acidification and Carbon Cycle

It is more than 20 years since the study on ocean acidification and carbon cycle between China and America has been conducted, the study is to carry out the observation and research about the ocean acidification and carbon cycle of the Arctic Ocean by using the sequence of voyages or flights of China's Arctic expedition, in which it is found that the ocean acidification of the Arctic Ocean is increasing and it is caused by the CO2 that was sucked out of the atmosphere, while the Arctic Ocean's absorption capacity of atmospheric CO2 declines rapidly with the retreat of sea ice. The study has explained the rapid acidification process of long-range, long-time and large-scale of the Arctic Ocean and proved that CO2 emissions from human and global warming are the main driver for the rapid acidification of the Arctic Ocean. Ocean acidification in the Arctic Ocean endangers the diversity of marine organisms seriously and destroys the balance of ecosystems. The people all over the world must act together to tackle the global problem of ocean acidification.

The research results were published in Science and Nature's sub-journal, Nature Climate Change (cover paper) which has attracted great attention from domestic and foreign media. The international media reported this as a successful case of Sino-US international cooperation in scientific research, to which the related activities include it is published by the National Natural Science Foundation Committee in Chinese and English, Xinhua News Agency published the news releases on the study in Chinese and English, China Ocean News published news releases on the study on the front page in China; the headline news of on the homepage of the University of Delaware and the TOP STORY section on the front page of the National Science Foundation Committee (NSF) . The following-up reports by the world-famous marine institutions such as the Woods Hole Oceanographic Institute (WHOI), National Oceanic and Atmospheric Administration (NOAA), the Washington Post and the American Scientist in the world and it have become an important part of the Sino-US Strategic and Economic Dialogue and the list of outcomes of the leaders' meeting.


The Chinese and American scientists Di Qi, Liqi Chen and Weijun Cai united to publish the cover story of "Increase in acidifying water in the western Arctic Ocean" on Britain Nature Climate Change in 2017. Cover information: "CHINARE "Xue Long" Icebreaker Operates in the Arctic Ocean" appears on the cover of NCC.

This map shows where ocean acidification is spreading in the Arctic Ocean, both in area and in depth.

Biogeochemical Studies from the Chinese National Arctic Research Expeditions (CHINAREs).

In 2012, Chinese and American scientists Chen Liqi and Wei-Jun Cai, as executive editors, published the special issue of "Biogeochemical Studies from the Chinese National Arctic Research Expeditions (CHINAREs)" on Britain Deep Sea Research II.

Cooperation Symposium of Marine Ecosystems and Carbon Cycles of Polar Regions between China and America, Xiamen, 2011.
(Memorandum on Collaborative Research on the Carbon Cycling and Ecosystems in Polar Regions)

This photo shows the science team workling on an ice station in front of the icebreaker XueLong during the sunmmer 2010 cruise in the northern Canada Basin , very close to the North Pole.

Chinese and American scientists united takes water samples of a melting pond on an ice station on the northern Arctic Ocean Basin with a Chinese collaborator.