biodiversity

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by Louisa Hunter1 view·Updated Feb 17, 2021
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  1. What will this mean?
  2. We need to look into the deep Pasto understand the
  3. consequences of our actions that we do today.
  4. Two scientists knowledge the world has bean through at least
  5. five mass extinctions.
  6. Mass extinctions, by definition, is the extinction of a large
  7. number of species within a relatively short period of geological
  8. time, thought to be due to factors such as catastrophic
  9. global event or widespread environmental change that occurs too rapidly
  10. for most species to adapt.
  11. The five mass extinctions occurred in the order Vic in
  12. Devonian, her Mean IAM Triassic and Creations periods.
  13. Most of these were caused by catastrophic volcanic eruptions.
  14. The lava and ash is an issue.
  15. It's the carbon dioxide, the last.
  16. The largest mass extension occurred in the Permian period 252
  17. million years ago.
  18. It was caused by the super heating of the world
  19. as a result of volcanic activity, pumping huge amounts of
  20. carbon dioxide into the atmosphere.
  21. This super heating saw the destruction of around 95% of
  22. all life on Earth.
  23. The last mass extinction was the creations extinction 66 million
  24. years ago, where 75% of species became extinct, including the
  25. dinosaurs. Humanity is acting like a super volcano.
  26. We're releasing the carbon dioxide at a faster rate than
  27. prehistoric volcanic activity on scientists say we are in the
  28. myths of the sixth mass extinction.
  29. This is having a negative consequences on ecosystem functions, and
  30. service is vital to sustain civilization.
  31. This indicates the urge could change.
  32. We need to avert the dramatic loss of biodiversity, reduce
  33. our climate change.
  34. According to scientists.
  35. The window of correction to stem the side the tide
  36. of biodiversity loss on dhe reduce the effects of this
  37. maths. Sixth mass extinction is between 20 to 30 years.
  38. We need to conserve our global by the biodiversity to
  39. prevent further climate change and prevent a mass extinction.
  40. We need to stop the major drivers for the mass
  41. extinction which are habitat loss and insta gration, including pollution,
  42. invasion of alien species, exploitation of biological resources on the
  43. big one.
  44. Climate change, ecosystems and organisms can help us stem the
  45. tide in climate change.
  46. Biodiversity loss five Fight Oh, plankton At the ocean surface,
  47. an immense forests straddling the north have helped to balance
  48. the atmosphere by locking away carbon.
  49. Huge herds on the planes have kept the grasslands rich
  50. and productive by fertilizing.
  51. The soils, mangroves and coral reefs along thousands of miles
  52. of coasts have harbored nurseries of fish species that where
  53. mature range into open waters.
  54. A thick belt of jungle around the equator has piled
  55. on the plant to capture as much of the sun's
  56. energy as possible, adding moisture and oxygen to the global
  57. air currents, thes environments and ecosystems contain wide variety of
  58. biodiversity. We are dependent on these areas for help and
  59. stop on.
  60. However, we need to stop destroying them.
  61. We don't want want future generations questioning why we didn't
  62. make the change when we could thank you very much
  63. for listening.
  64. Um, any questions are welcome.