full transcript
"From the Ted Talk by Bill Gates: Innovating to zero!"

#### Unscramble the Blue Letters

Now, the exact amount of how you map from a certain increase of CO2 to what temperature will be, and where the positive fecebdaks are â there's some uncertainty there, but not very much. And there's certainly untrtenaciy about how bad those eecftfs will be, but they will be extremely bad. I asked the top scttsinies on this several times: Do we really have to get down to near zero? Can't we just cut it in half or a quarter? And the answer is, until we get near to zero, the temperature will continue to rise. And so that's a big challenge. It's very different than saying, "We're a twelve-foot-high truck trying to get under a ten-foot bridge, and we can just sort of squeeze under." This is something that has to get to zero.

#### Open Cloze

Now, the exact amount of how you map from a certain increase of CO2 to what temperature will be, and where the positive **_________** are â there's some uncertainty there, but not very much. And there's certainly **___________** about how bad those **_______** will be, but they will be extremely bad. I asked the top **__________** on this several times: Do we really have to get down to near zero? Can't we just cut it in half or a quarter? And the answer is, until we get near to zero, the temperature will continue to rise. And so that's a big challenge. It's very different than saying, "We're a twelve-foot-high truck trying to get under a ten-foot bridge, and we can just sort of squeeze under." This is something that has to get to zero.

#### Solution

- uncertainty
- feedbacks
- effects
- scientists

#### Original Text

Now, the exact amount of how you map from a certain increase of CO2 to what temperature will be, and where the positive feedbacks are â there's some uncertainty there, but not very much. And there's certainly uncertainty about how bad those effects will be, but they will be extremely bad. I asked the top scientists on this several times: Do we really have to get down to near zero? Can't we just cut it in half or a quarter? And the answer is, until we get near to zero, the temperature will continue to rise. And so that's a big challenge. It's very different than saying, "We're a twelve-foot-high truck trying to get under a ten-foot bridge, and we can just sort of squeeze under." This is something that has to get to zero.
#### ngrams of length 2

collocation |
frequency |

rich world |
3 |

poor countries |
3 |

report card |
3 |

#### Important Words

- amount
- answer
- asked
- bad
- big
- bridge
- challenge
- continue
- cut
- effects
- exact
- extremely
- feedbacks
- increase
- map
- positive
- quarter
- rise
- scientists
- sort
- squeeze
- temperature
- top
- truck
- uncertainty