TY - RPRT TI - Forest canopy decline under elevated CO2 during the Paleocene-Eocene Thermal Maximum AU - Regan E. Dunn AU - Marieke Dechesne AU - Brady Z. Foreman AU - Nace. Keifer AU - Jenna M. West AU - Ellen D. Currano PY - 2026 DO - 10.1126/science.aec4776 UR - https://pubs.usgs.gov/publication/70279238 ID - 70279238 ER -