China's Scientific Rise Strains Research Ties With U.S.

Chinese scientists published more papers than American or European Union researchers in 2021, showing China's rising scientific prowess.

Collaboration between American and Chinese researchers is declining due to tensions between the countries.

America is wary of China's advances in technology and alleged intellectual property theft. China argues it is unfairly targeted.

Both sides have national security concerns impeding research cooperation. China restricts data sharing; America scrutinizes Chinese researchers.

Less collaboration will hurt science in both countries. Attracting top global talent has aided America's scientific leadership.