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"Especially in the winter semester, many teachers from outside the region had headaches and purple lips, and students also woke up frequently from their sleep due to lack of oxygen," she said.

"Digitalization helps reduce costs, improves clients' experience and helps brands to differentiate themselves from their counterparts, which helps revenue to grow," Jia said. "It's possible for any company to become a leader in its industry if it advances in digital transformation."

"Dad said he wanted to be with me at home. But for the happiness and safety of others, he had to leave for the isolation observation area," Liu said.

"Economic globalization is a basis for further development of China-US trade relations," Sun said.

"Everybody in the world will be affected by the changes we are seeing," Michael Meredith, an oceanographer with the British Antarctic Survey and one of the report's authors, told Reuters.