Summary of China’s Science and Technology News-June 22

Beijing, June 22 (Xinhua)-The following is a summary of science and technology news published in China.

Decreased oxygen levels

A Chinese research team recently unveiled new risks of low oxygen levels in large cities around the world, expressing concern about people’s health and the potential for sustainable development in major cities.

A team at Lanzhou University investigated oxygen balance and related risks in 391 cities around the world with a population of over 1 million. The results of the survey show that urban areas of the world, which cover 3.8% of the world’s land surface, accounted for about 39% of land oxygen consumption between 2001 and 2015.

Paleoclimate changes

Chinese researchers have developed indicators to track paleoclimate changes over the last 13,000 years in the headwaters of the Yangtze River.

Researchers have collected multiple indicator data from core sediments of lakes in the central Qinghai-Tibetan Plateau to create high-resolution records of climate change and monsoon impacts.

They distinguished four stages of paleoclimate change since the last glacial period. The relatively cold of the Last Glacial Period, the warm and moist conditions of the early Holocene, the cool and dry conditions of the mid and late Holocene, and the last 2000 years.

Space tracking ship

China’s distant view No. 6 spacecraft returned to its home port on Monday after completing telemetry, tracking, and command (TT & C) tasks for the Tianzhou 2 unmanned spacecraft and Shenzhou 12 manned spacecraft missions. ..

China’s third-generation space tracking vessel, Yuanwang-6, has been at sea for 29 days and has sailed more than 5,000 nautical miles in two missions. It provided important communication between the spacecraft and the ground.

Summary of China’s Science and Technology News-June 22

Source link Summary of China’s Science and Technology News-June 22

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