1 / 45

air

air. we can’t see it…. air. ….but is. air ‘nothing’?. air is not just ‘emptiness’. air is an amazing mix of gases. very. air is a amazing mix of gases!. we share the air. gases in the come from. life. we share the air. gases in the g i v e us.

honorato-burt
Télécharger la présentation

air

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. air

  2. we can’t see it… air

  3. ….but is air‘nothing’?

  4. airis not just ‘emptiness’

  5. airis an amazing mix of gases

  6. very airis a amazing mix of gases!

  7. weshare the air gases in the come from life

  8. weshare the air gases in the g i v e us life

  9. we share the air

  10. we share the air it depends who you are an educational initiative

  11. we share the air it depends who you are …b u t w h o a r e w e?

  12. we share the air …b u t w h o a r e w e?

  13. we share the air …b u t w h o a r e w e?

  14. we share the air …b u t w h o a r e w e?

  15. we share the air …b u t w h o a r e w e?

  16. we share the air …b u t w h o a r e w e?

  17. we share the air A living planet is a rare thing, perhaps the rarest thing in the universe. Kenneth Brower …b u t w h o a r e w e?

  18. we share the air w h a t i s a i r?

  19. nitrogen oxygen carbon dioxide methane & other trace gases we share the air w h a t i s a i r?

  20. “… the air itself is a biological product … a result of active exchange of gases with living organisms. The air is a protective skin, a warming blanket, an exchange & water circulation medium… we share the air w h a t i s a i r?

  21. …the composition of the air seems to violate the ordinary rules of equilibrium chemistry.” James Lovelock GAIA – The practical science of planetary medicine we share the air w h a t i s a i r?

  22. nitrogen 79% we share the air w h a t i s a i r?

  23. nitrogen 79% we share the air nitrogen maintains our atmospheric pressure w h a t i s a i r?

  24. oxygen 21% we share the air w h a t i s a i r?

  25. oxygen 21% we share the air oxygen allows plants & animals to get energy from food w h a t i s a i r?

  26. carbon dioxide 280 ppm (pre-industrial) we share the air w h a t i s a i r?

  27. carbon dioxide 280 ppm (pre-industrial) we share the air CO2 allows photosynthesis & keeps planetary temperature stable why is CO2 so important?

  28. carbon dioxide 370 ppm (now – up by 1/3) we share the air CO2 was very common when life first started 3.5 billion years ago why is CO2 so important?

  29. carbon dioxide 370 ppm (now – up by 1/3) we share the air CO2 was very common when life first started 3.5 billion years ago where has the CO2 gone?

  30. we share the air where has the CO2 gone?

  31. we share the air where has the CO2 gone?

  32. over billions of years CO2 ‘extracted’ from atmosphere • carbon ‘stored’ as chalk, limestone & fossil fuels • result – an atmosphere for life to evolve and prosper. we share the air where has the CO2 gone?

  33. we share the air CO2 ‘extraction’ today

  34. we share the air CO2 ‘extraction’ today

  35. we share the air CO2 ‘extraction’ today

  36. we share the air Oceans & forests can’t absorb all the CO2 from our cars, planes, homes & factories. n a t u r e c a n’t c o p e

  37. we share the air That’s why CO2 is increasing in the atmosphere so fast n a t u r e c a n’t c o p e

  38. we share the air …and the earth is now warming n a t u r e c a n’t c o p e

  39. Glacier in Peru's Cordillera Blanca range, 1980 Photo: Bryan Lynas we share the air Same place, 2002 Photo:Tim Helweg-Larsen, 2002 climate change is happening

  40. Fish barbecue in Tuvalu, Pacific. Photo: Mark Lynas we share the air climate change is happening

  41. Fish barbecue in Tuvalu, Pacific. Photo: Mark Lynas • “Global climate, even in fifty years time, may be warmer than the earth has experienced in the past 12 million years….. changes of this speed and magnitude are unprecedented to our knowledge, aside from large meteorite impacts.” • * Peter Barrett, Antarctic Research Centre, New Zealand we share the air climate change is happening

  42. we share the air s o w h a t c a n w e d o?

  43. support a low-carbon future we share the air s o w h a t c a n w e d o?

  44. we share the air …and leave them a living planet s o w h a t c a n w e d o?

  45. we share the air it depends who you are …and leave them a living planet s o w h a t c a n w e d o?

More Related