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Seth Itzkan - Soil Carbon and Climate

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Seth Itzkan - Soil Carbon and Climate

  1. 1. Gree$ngs  From  the  Paradigm  Fence Tuesday, January 13, 15
  2. 2. Karoo,  South  Africa Grassland WaterCarbon Desert WaterCarbon Which  side  do  you  prefer? Which  side  gets  more  rain? Tuesday, January 13, 15
  3. 3. Holism Tuesday, January 13, 15
  4. 4. Tuesday, January 13, 15
  5. 5. Tuesday, January 13, 15
  6. 6. 35  -­‐  75  million 35  million 5  billion Animal Con;nent Tuesday, January 13, 15
  7. 7. The  end  of… soil Buffalo  Genocide The  beginning  of… deser(fica(on Soil  needs  animals Tuesday, January 13, 15
  8. 8. Livestock  as  a   proxy  for  wild   herds Tuesday, January 13, 15
  9. 9. Tuesday, January 13, 15
  10. 10. 4  x Tuesday, January 13, 15
  11. 11. 2004 100%  bare  ground for  decades Tuesday, January 13, 15
  12. 12. 2005 Tuesday, January 13, 15
  13. 13. 2006 Tuesday, January 13, 15
  14. 14. 2013 Deep-­‐rooted Perennials Deep-­‐rooted Perennials Tuesday, January 13, 15
  15. 15. 15 Tuesday, January 13, 15
  16. 16. Deep-­‐rooted Perennials Deep-­‐rooted   Perennials Tuesday, January 13, 15
  17. 17. 2014 Climax  Perennial  Grass (Panicum  maximum) “Guinea  grass” Mid-­‐succession  Perennial  Grass (Heteropogon  contortus) “Spear  grass” Tuesday, January 13, 15
  18. 18. 2014 <-­‐-­‐  mopani  tree <-­‐-­‐  mopani  tree mopani  tree-­‐-­‐> Restored  Landscape  With Climax  Perennial  Grasses (Panicum  maximum) Panicum  maximum seed  head Bare  ground  for  decades Tuesday, January 13, 15
  19. 19. 19 Tuesday, January 13, 15
  20. 20. 20 Tuesday, January 13, 15
  21. 21. 2004 2013 Tuesday, January 13, 15
  22. 22. 2006 Tuesday, January 13, 15
  23. 23. 2009 Tuesday, January 13, 15
  24. 24. 2013 Tuesday, January 13, 15
  25. 25. 2006 2013 Tuesday, January 13, 15
  26. 26. 26 2014 Tuesday, January 13, 15
  27. 27. Google   DigitalGlobe  •  GeoEye  •  Cnes  /  Spot   Image New  Surface  Water in  Dry  Season 1.5  Km  /  10  m  eleva;on   gain Tuesday, January 13, 15
  28. 28. Driving  Upstream Copyright  ©  Seth  Itzkan,  2012 Tuesday, January 13, 15
  29. 29. Tuesday, January 13, 15
  30. 30. New  Surface  Water  in  Dry  Season No  more  pumps Tuesday, January 13, 15
  31. 31. 31 Coahuila,  Mexico  –  1963 Tuesday, January 13, 15
  32. 32. Coahuila,  Mexico  -­‐  2003 Tuesday, January 13, 15
  33. 33. Lebowa  –    1970s     Tuesday, January 13, 15
  34. 34. 34 Tuesday, January 13, 15
  35. 35. 35 Tuesday, January 13, 15
  36. 36. 36 Tuesday, January 13, 15
  37. 37. How  Much  Carbon  is  Captured? Tuesday, January 13, 15
  38. 38. Grasslands  –  Largest  Ecosystem Love  Carbon CO2CO2 Tuesday, January 13, 15
  39. 39. 39 Tuesday, January 13, 15
  40. 40. Tuesday, January 13, 15
  41. 41. 41 25-­‐50 50-­‐75 75-­‐100 100-­‐150 150-­‐200 150-­‐200 >300 Tuesday, January 13, 15
  42. 42. Tropical  savanna:                                                146  tC/ha       Desert,  semi-­‐desert,  scrubland:  83  tC/ha Desert  extreme:                                                        26  tC/ha Tuesday, January 13, 15
  43. 43. Grasslands,  Tropical  Savanna:  117  tC/ha       Desert,  Semi-­‐desert:                                      42  tC/ha Tuesday, January 13, 15
  44. 44. 44 Global  Sequestra;on  Poten;alGlobal  Sequestra$on  Poten$al 88  to  210  Gt  C 40  to  100  ppm  CO2 Tuesday, January 13, 15
  45. 45. How  we  think  about  the  future • Popula;on  crashes • Mass  migra;ons • Vast  new  deserts • Ci;es  abandoned Tuesday, January 13, 15
  46. 46. 4°C  Warmer  World Tuesday, January 13, 15
  47. 47. Geo-­‐engineering  to  the  Rescue! §  Space  Mirrors §  Ar;ficial  Trees §  Reflec;ve  Crops §  Biochar §  Ocean  Fer;liza;on §  Fores;ng §  Aerosols §  Cloud  Seeding §  Carbonate  Addi;on Do  you  feel  be7er  now? Source:  Earth’s  Plan  B,  New  Scien(st,  28  Feb.  2009,   p8   “Earth’s  Plan  B” Tuesday, January 13, 15
  48. 48. How  we  could  think  about  the  future • Climate  Stabiliza;on • Vast  new  grasslands • Water  tables  replenished • Sustainable  economies Tuesday, January 13, 15
  49. 49. 49 Tuesday, January 13, 15

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