For Prof. Eliud Peterson only

Questions 1. How are CO2 concentration and temperature related? Carbon (iv) oxide is one of the greenhouse gases and an extra of it in atmosphere traps heat that leads to increase in temperatures. 2. What is the approximate number of years it takes to complete one complete cycle (the amount of time between two troughs-low points- or peaks-high points)? For the temperature-time graph is approximately 78000-48000=30000 years For CO2 concentration -time graph is approximately 258000-228000=30000years 3. Figure out the rate of change in CO2 concentration and temperature anomaly in the past by filling out the table below

Variable Value in 48,000

BC Value in 400 BC Change

Rate of change per year

CO2 concentra tion, ppm 190 285 -95 -0.002 Temperat

ure anomaly

(˚C) -5.18 0 -5.18 -0.00011

4. Figure out the rate of change in CO2 concentration and temperature anomaly closer to present-

Variable Value in

1901 Value in

2011 Change Rate of change per year

CO2 concentra tion, ppm

296.1 ppm

391.6 ppm 95.5 0.86818

Temperat ure

anomaly (˚C) -0.16 ˚C 0.51 ˚C 0.67 0.00609

5. Do either of the tables above show a warming trend? If so, which? How do you know? Table 2 shows a warming trend, this is because it has a positive anomaly which indicates that the observed temperature is warmer than the reference value. Also the rates of change are positive. 6. How are the rates of change per year different now (in table from #4) than in the far past (table from #3)? Rate of change now are positive depicting warming trend. Many years ago the level of carbon iv oxide concentration in atmosphere stayed between 200 and 300 parts per million that mean a heating or cooling effect. Today the level is up to 400ppm and is still rising resulting into a positive rate of change.

7. How do the rates of change for CO2 concentration and temperature anomaly compare? The rate of change for carbon iv oxide concentration in atmosphere is relatively higher than that of temperature changes. This is because, there are many greenhouse gases emitted in the environment but are not in excess to trap heat more often and therefore less rate of change

Carbon (iv) oxide is one of the greenhouse gases and an extra of it in atmosphere traps heat that leads to increase in temperatures. 2. What is the approximate number of years it takes to complete one complete cycle (the amount of time between two troughs-low points- or peaks-high points)?

concentration and temperature anomaly in the past by filling out the table below.

-day by filling out this table, which uses information taken from the research station on Mauna Loa

Table 2 shows a warming trend, this is because it has a positive anomaly which indicates that the observed temperature is warmer than the reference value. Also the rates of change are positive. 6. How are the rates of change per year different now (in table from #4) than in the far past (table from #3)? Rate of change now are positive depicting warming trend. Many years ago the level of carbon iv oxide concentration in atmosphere stayed between 200 and 300 parts per million that mean a heating or cooling effect. Today the level is up to 400ppm and is still rising resulting into a positive rate of change.

The rate of change for carbon iv oxide concentration in atmosphere is relatively higher than that of temperature changes. This is because, there are many greenhouse gases emitted in the environment but are not in excess to trap heat more often and therefore less rate of change

which uses information taken from the research station on Mauna Loa, Hawaii. Note that while the reference temperature is different in Hawaii than in Antarctica, the amount of change and the CO

Table 2 shows a warming trend, this is because it has a positive anomaly which indicates that the observed temperature is warmer than the reference value. Also the rates of change are positive.

Rate of change now are positive depicting warming trend. Many years ago the level of carbon iv oxide concentration in atmosphere stayed between 200 and 300 parts per million that mean a heating or cooling effect. Today the level is up to 400ppm and is still rising resulting into a positive rate of change.

The rate of change for carbon iv oxide concentration in atmosphere is relatively higher than that of temperature changes. This is because, there are many greenhouse gases emitted in the environment but are not in excess to trap heat more often and therefore less rate of change

the amount of change and the CO2 and temperature patterns seen in Hawaii should match what is seen in the Antarctica data

Rate of change now are positive depicting warming trend. Many years ago the level of carbon iv oxide concentration in atmosphere stayed between 200 and 300 parts per million that mean a heating or cooling effect. Today the level is up to 400ppm and is still rising resulting into a positive rate of change.

and temperature patterns seen in Hawaii should match what is seen in the Antarctica data.