full transcript

From the Ted Talk by Sean Davis: Can we solve global warming? Lessons from how we protected the ozone layer

Unscramble the Blue Letters


Now, I'm sure that many of you aren't familiar with this environmental problem, but you should be, because it's a rare environmental success story. And it's worth revisiting, because sometimes, we need to examine the world we've avoided in order to find guidance for the choices we make tdaoy.

So let's go back to the 1970s, when some questionable choices were made: first of all — hoo — hairstyles. (Laughs) Second of all, objectively terrible qnteautiis of hairspray, and third, CFCs, clofrrloraobuohcnos, man-made chemicals that were used as pperanllot in aerosol spray cans. And see, it trnus out these CFCs were a poberlm because they were destroying the ozone layer.

Open Cloze


Now, I'm sure that many of you aren't familiar with this environmental problem, but you should be, because it's a rare environmental success story. And it's worth revisiting, because sometimes, we need to examine the world we've avoided in order to find guidance for the choices we make _____.

So let's go back to the 1970s, when some questionable choices were made: first of all — hoo — hairstyles. (Laughs) Second of all, objectively terrible __________ of hairspray, and third, CFCs, ___________________, man-made chemicals that were used as __________ in aerosol spray cans. And see, it _____ out these CFCs were a _______ because they were destroying the ozone layer.

Solution


  1. quantities
  2. today
  3. turns
  4. chlorofluorocarbons
  5. propellant
  6. problem

Original Text


Now, I'm sure that many of you aren't familiar with this environmental problem, but you should be, because it's a rare environmental success story. And it's worth revisiting, because sometimes, we need to examine the world we've avoided in order to find guidance for the choices we make today.

So let's go back to the 1970s, when some questionable choices were made: first of all — hoo — hairstyles. (Laughs) Second of all, objectively terrible quantities of hairspray, and third, CFCs, chlorofluorocarbons, man-made chemicals that were used as propellant in aerosol spray cans. And see, it turns out these CFCs were a problem because they were destroying the ozone layer.

Frequently Occurring Word Combinations


ngrams of length 2

collocation frequency
montreal protocol 6
ozone layer 5
climate change 4
paris climate 3
climate accord 3
spray cans 3
ozone depletion 2
aerosol spray 2
thin shell 2
skin cancer 2
human safety 2
antarctic ozone 2
seat belt 2
solve global 2

ngrams of length 3

collocation frequency
paris climate accord 3
aerosol spray cans 2

Important Words


  1. aerosol
  2. avoided
  3. cans
  4. cfcs
  5. chemicals
  6. chlorofluorocarbons
  7. choices
  8. destroying
  9. environmental
  10. examine
  11. familiar
  12. find
  13. guidance
  14. hairspray
  15. hairstyles
  16. hoo
  17. laughs
  18. layer
  19. objectively
  20. order
  21. ozone
  22. problem
  23. propellant
  24. quantities
  25. questionable
  26. rare
  27. revisiting
  28. spray
  29. story
  30. success
  31. terrible
  32. today
  33. turns
  34. world
  35. worth