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1. The carbon bathtub model shows that if we want CO2 concentrations in the atmo

ID: 233122 • Letter: 1

Question

1. The carbon bathtub model shows that if we want CO2 concentrations in the atmosphere to decrease, these have to be greater than emissions. what are these?

2. Stabilizing atmospheric CO2 at 400-500 ppm will require these type of cuts. (two words) what are these type?

3. The only way to get to 2C warming by 2100 is if ___ of our delegations make very aggressive cuts in emissions. what is ___?

4. According to Coral Davenport (New York Times, 2014), many scientists think that reaching the 2C warming goal by 2100 at this point is this. what is this?

5. According to Lord Stern (November 2013), we need to cut emissions this way to reach our goal. what is this way?

6. This was your warming goal in the climate negotiations by 2100. (two words). what is this?

Explanation / Answer

1) Rate of removal of CO2 by Plants, oceans, and rocks should be greater than CO2 emission rate in the atmosphere.

2)  Stabilizing atmospheric CO2 at 400-500 ppm will require cuts in emissions from