Estimation, variations, and impact factors of high-resolution global daily near-surface CO2 during 2015–2021 based on OCO-2 and machine learning Ruo-Bing Liu Xin-Feng Wang Yu-Chao Ren Chenliang Tao Shu-Ping Ji Zhen-Yu Gao Yi-Zhu Jiang Shi-Long Ren Lei Fang Jin-Yue Chen Qing-Zhu Zhang Guo-Qiang Wang Qiao Wang Sep 2026 · ENGINEERING Environment · Vol 20 · 0 citations · 74 references DOI Semantic Scholar Save View source Cite { copied='apa'; setTimeout(() => { copied=null; open=false }, 1000) })" class="flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-ink-800"> Copy APA Copied ✓ { copied='mla'; setTimeout(() => { copied=null; open=false }, 1000) })" class="flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-ink-800"> Copy MLA Copied ✓ { copied='bibtex'; setTimeout(() => { copied=null; open=false }, 1000) })" class="flex w-full items-center justify-between rounded-lg px-3 py-2 text-left text-sm hover:bg-gray-100 dark:hover:bg-ink-800"> Copy BibTeX Copied ✓ Share