AUTHOR=John Jacob E. TITLE=Global warming, carbon cycles, forests and photosynthesis; a hypothesis for global cooling JOURNAL=Frontiers in Earth Science VOLUME=Volume 13 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2025.1554362 DOI=10.3389/feart.2025.1554362 ISSN=2296-6463