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China tops US in climate change research, boosting sway on global policy

Nikkei Asia · last updated
Science

China tops US in climate change research, boosting sway on global policy

Paper volume and quality continue to rise, widening gap while Trump shuns field

Climate change research serves as a key basis for international policy.

SHOJI YANO and DAI KUWAMURA

August 22, 2025 01:45 JST

TOKYO — China surpassed the U.S. in the number of climate research papers produced in 2023 and widened its lead the following year, Nikkei has found, underscoring growing Chinese global influence even as America shrinks from the field under President Donald Trump.