Nature Climate ChangeInternational trade reduces emissions through technology transfer led by key emittersJiaming WangPeng WangShu-Chien HsuPan HeYangyang WuFutian RenYiyi WangWenhai ChuJun BiLei HuangYuli Shan2026-03-17Full textDOI https://doi.org/10.1038/s41558-026-02595-z