1 / 18

Understanding the Carbon Cycle in Global Warming

Explore the intricate processes of the carbon cycle and its impact on global warming, including pre-industrial cycles, soil dynamics, ocean productivity, and emission scenarios.

chimalsi
Download Presentation

Understanding the Carbon Cycle in Global Warming

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Slides for GGR 314,Global WarmingChapter 3: The Carbon CycleCourse taught byDanny HarveyDepartment of GeographyUniversity of Toronto

  2. Exhibit 3-1: The pre-industrial carbon cycle

  3. Exhibit 3-2: Collapsing vegetation and exposure of previously frozen C-rich soils as permafrost warms Source: http://www.globalcarbonproject.org/news/SoilOrganicPoolsinPermafrost.html

  4. Exhibit 3-3: A carbon rich soil above permafrost (left) and ice wedges in permafrost (left) Source: http://www.globalcarbonproject.org/news/SoilOrganicPoolsinPermafrost.html

  5. Exhibit 3-4: Diatoms, depicted below, have SiO2 (siliceous, made of silica) skeletons Source: Wikipedia, Open Source photo in article on plankton

  6. Exhibit 3-5: Coccoliths (left) and foraminifera (right) have calcium carbonate (calcareous) skeletons Width of image: 5.5 mm Source: Left, Wikipedia, Richard Lampitt and Jeremy Young in article on “Coccolithophore” Right, Wikipedia article on “Foraminifera”, author Psammophile

  7. Exhibit 3-6: Geographical variation in net primary productivity of the world’s oceans Source: Schlesinger (1991)

  8. Exhibit 3-7: Variation of potential pCO2 in the low-latitude ocean Source: Broecker and Peng

  9. Exhibit 3-8:Simulated variation in the terrestrial biosphere sink using theLPJ dynamic global vegetation model driven either by observedtemperature and precipitation variations (CRU Climatology) or withoutput from two climate models Source: Fischlin et al (2007, IPCC AR4, WGII)

  10. Exhibit 3-9: Hypothetical variation in the number of persons entering and leaving a store. Source: Chen (2011, Climatic Change 108:31-46)

  11. Exhibit 3-10:CO2 emissions and CO2 sinks for a scenario where trend of increasing emissions turns around between 2010-2020. Source: Harvey (1989, Climatic Change, Vol. 15, 343-381)

  12. Exhibit 3-11: Methane escaping from thawing yedoma (loess) soils in Siberia

  13. Exhibit 3-12: Sonar image of methane bubbles rising from the sea floor along a 2.5 km segment in 250-m deep water west of Svalbard (Arctic Ocean) Methane bubbling from lakes http://www.youtube.com/watch?v=eM5WPl69Z18&feature=related Source: Kerr (2010, Science, Vol. 329, 620-621) Video, methane from frozen lakes, ignited http://www.youtube.com/watch?v=oa3M4ou3kvw Methane bubbling from lakes http://www.youtube.com/watch?v=eM5WPl69Z18&feature=related

  14. Exhibit 3.13a: CO2 stabilization scenarios Source: IPCC AR4 WG1 Fig 10.22a

  15. Exhibit 3-13b: Range ofCO2 emissions permitted for the various stabilization scenarios Source: IPCC AR4 WG1 Fig 10.22b

  16. Proposed expansion of oil production from the tar sands, and consequences for CO2 emissions

  17. Keystone Pipeline XL route

  18. Youtube Video:http://www.youtube.com/watch?v=TkgOmuIumjk&feature=youtu.beCommentary:http://switchboard.nrdc.org/blogs/ddroitsch/new_video_explains_the_climate.html

More Related