full transcript

From the Ted Talk by Gabrielle Walker: What you need to know about carbon removal

Unscramble the Blue Letters


So one issue, though, with direct air capture, is it takes a lot of energy to power those fans. And that energy obviously has to be green. It has to be clean; you can’t use fossil fuels for it. But it also makes it much more evnxiespe than other techniques. And it tkeas enegry to cook wood and to girnd rock, and so all of those approaches I’m talking about are currently much more expensive than planting trees. But we can do something about that. We can invest in it now, do the recrsaeh and development and get them down the cost curve to make them affordable. It worked for solar power; it woekrd for wind; it can work for carbon removals, too. rebmemer, we have to get to very big scale: billions of tonnes of carbon rvelamos by 2050. But we can all help by reducing our emissions as much as possible and figuring out how to remove the rest. I’m not talking conventional offsets. You know, I put a tonne of CO2 in the air, and I pay you not to put your tonne in the air, but my tonne’s still there. No, what I mean is I put a tonne of CO2 in the air, I pay someone to take a tonne out of the air, now or in the near future, and we can get to zero and beyond. What goes up must now come down. And if we all do that, if we all make that commitment, then the ppoele trying to make removals hpepan will have the finance and the courage and the confidence to be able to get to the scale that we need.

Open Cloze


So one issue, though, with direct air capture, is it takes a lot of energy to power those fans. And that energy obviously has to be green. It has to be clean; you can’t use fossil fuels for it. But it also makes it much more _________ than other techniques. And it _____ ______ to cook wood and to _____ rock, and so all of those approaches I’m talking about are currently much more expensive than planting trees. But we can do something about that. We can invest in it now, do the ________ and development and get them down the cost curve to make them affordable. It worked for solar power; it ______ for wind; it can work for carbon removals, too. ________, we have to get to very big scale: billions of tonnes of carbon ________ by 2050. But we can all help by reducing our emissions as much as possible and figuring out how to remove the rest. I’m not talking conventional offsets. You know, I put a tonne of CO2 in the air, and I pay you not to put your tonne in the air, but my tonne’s still there. No, what I mean is I put a tonne of CO2 in the air, I pay someone to take a tonne out of the air, now or in the near future, and we can get to zero and beyond. What goes up must now come down. And if we all do that, if we all make that commitment, then the ______ trying to make removals ______ will have the finance and the courage and the confidence to be able to get to the scale that we need.

Solution


  1. happen
  2. remember
  3. people
  4. worked
  5. expensive
  6. grind
  7. removals
  8. energy
  9. takes
  10. research

Original Text


So one issue, though, with direct air capture, is it takes a lot of energy to power those fans. And that energy obviously has to be green. It has to be clean; you can’t use fossil fuels for it. But it also makes it much more expensive than other techniques. And it takes energy to cook wood and to grind rock, and so all of those approaches I’m talking about are currently much more expensive than planting trees. But we can do something about that. We can invest in it now, do the research and development and get them down the cost curve to make them affordable. It worked for solar power; it worked for wind; it can work for carbon removals, too. Remember, we have to get to very big scale: billions of tonnes of carbon removals by 2050. But we can all help by reducing our emissions as much as possible and figuring out how to remove the rest. I’m not talking conventional offsets. You know, I put a tonne of CO2 in the air, and I pay you not to put your tonne in the air, but my tonne’s still there. No, what I mean is I put a tonne of CO2 in the air, I pay someone to take a tonne out of the air, now or in the near future, and we can get to zero and beyond. What goes up must now come down. And if we all do that, if we all make that commitment, then the people trying to make removals happen will have the finance and the courage and the confidence to be able to get to the scale that we need.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
climate change 5
carbon removals 5
deep underground 3
carbon capture 3
woolly pig 2
put trees 2
carbon locked 2
good idea 2
carbon stay 2
direct air 2
cook wood 2
planting trees 2
woolly pigs 2
scottish wild 2
removals approaches 2

ngrams of length 3

collocation frequency
carbon removals approaches 2

Important Words


  1. affordable
  2. air
  3. approaches
  4. big
  5. billions
  6. capture
  7. carbon
  8. commitment
  9. confidence
  10. conventional
  11. cook
  12. cost
  13. courage
  14. curve
  15. development
  16. direct
  17. emissions
  18. energy
  19. expensive
  20. fans
  21. figuring
  22. finance
  23. fossil
  24. fuels
  25. future
  26. green
  27. grind
  28. happen
  29. invest
  30. issue
  31. lot
  32. offsets
  33. pay
  34. people
  35. planting
  36. power
  37. put
  38. reducing
  39. remember
  40. removals
  41. remove
  42. research
  43. rest
  44. rock
  45. scale
  46. solar
  47. takes
  48. talking
  49. techniques
  50. tonne
  51. tonnes
  52. trees
  53. wood
  54. work
  55. worked