--- attributes: ~ caption: "(a) Paleoreconstruction of atmospheric CO2 in\r\nparts per million (ppm) versus time over the past 400\r\nmillion years. The Geologic Carbon Cycle (GEOCARB)\r\nModel simulation is depicted by the black line; also\r\nshown (as dots) are publicly archived proxy data for\r\npaleosol carbon isotopes (red), phytoplankton carbon\r\nisotopes (green), stomatal indices (blue), marine boron\r\nisotopes (black), and liverwort carbon isotopes (cyan).\r\n(b) Ocean surface pH, shown in red, has increased over\r\nthe last 50 million years as atmospheric CO2 declined.\r\n[Data sources: Panel (a) from Royer 2006. Data are\r\npublicly available at www.ncdc.noaa.gov/data-access/\r\npaleoclimatology-data/datasets/climate-forcing. Panel\r\n(b) proxy data from Hönisch et al., 2012.]" chapter: doi: 10.7930/SOCCR2.2018.Ch17 identifier: biogeochemical-effects-of-rising-atmospheric-carbon-dioxide number: 17 report_identifier: second-state-carbon-cycle-report-soccr2-sustained-assessment-report sort_key: 170 title: Biogeochemical Effects of Rising Atmospheric Carbon Dioxide url: https://carbon2018.globalchange.gov/chapter/17/ chapter_identifier: biogeochemical-effects-of-rising-atmospheric-carbon-dioxide cited_by: [] contributors: [] create_dt: 2018-02-16T19:07:36 files: - file: fa/a0/f92d3f8169561a3544fb81ad16bc/Fig17.2.png href: https://data.globalchange.gov/assets/fa/a0/f92d3f8169561a3544fb81ad16bc/Fig17.2.png identifier: bed2ed05-c8ba-42cf-b31d-c2606aebb62d landing_page: ~ location: ~ mime_type: image/png sha1: fa3830d1ee85f1d53af8da5da3e239864f1085f6 size: 130169 thumbnail: fa/a0/f92d3f8169561a3544fb81ad16bc/.thumb-bed2ed05-c8ba-42cf-b31d-c2606aebb62d.png thumbnail_href: https://data.globalchange.gov/assets/fa/a0/f92d3f8169561a3544fb81ad16bc/.thumb-bed2ed05-c8ba-42cf-b31d-c2606aebb62d.png uri: /file/bed2ed05-c8ba-42cf-b31d-c2606aebb62d url: /assets/fa/a0/f92d3f8169561a3544fb81ad16bc/Fig17.2.png gcmd_keywords: [] href: https://data.globalchange.gov/report/second-state-carbon-cycle-report-soccr2-sustained-assessment-report/chapter/biogeochemical-effects-of-rising-atmospheric-carbon-dioxide/figure/figure-17-2--geological-context-of-carbon-dioxide--co2--.yaml identifier: figure-17-2--geological-context-of-carbon-dioxide--co2-- kindred_figures: [] lat_max: ~ lat_min: ~ lon_max: ~ lon_min: ~ ordinal: 2 parents: [] references: [] regions: [] report_identifier: second-state-carbon-cycle-report-soccr2-sustained-assessment-report source_citation: ~ submission_dt: 2019-03-15T13:33:56 time_end: ~ time_start: ~ title: Geological Context of Carbon Dioxide (CO2) uri: /report/second-state-carbon-cycle-report-soccr2-sustained-assessment-report/chapter/biogeochemical-effects-of-rising-atmospheric-carbon-dioxide/figure/figure-17-2--geological-context-of-carbon-dioxide--co2-- url: ~ usage_limits: Figure may be copyright protected and permission may be required. Contact original figure source for information