▶ Your Answer :
In the reading passage, there is ample support for the author’s claim that there are a few ways to accomplish the carbon sequestration. However, the professor in the lecture gives several reasons as a rebuttal to the author’s point. First, the professor contends that the number of phytoplankton will not be increased from adding a lot of irons. The Phytoplankton is very reproductive and this plankton requires nitrogens to subsist their lives. Thus, the number of phytoplankton will be declined. Also, the recent study indicates that the small amount of the CO2 will be stored even though lots of irons will be added. This casts doubt on the reading passage’s claim that this marine organism eats CO2 and when they died, they sink toward to the bottom of the ocean with stored CO2. Next, the professor insists that making a artificial wetland is not effective. Recent study expresses that artificial’s capacity is not strong enough to absorb CO2 than natural swarms. Moreover, it takes too long time to build this artificial ecosystem thoroughly. This counters the reading passage’s assertion that bacteria release CO2 in the atmosphere when they are decomposed. So the amount of CO2 will be dwindled by covering wetland with water. Finally, the professor argues that bonding coal with CO2 is problematic. When CO2 is mixed with coal, the methane is occurred. And this methane also have a CO2. Thus, when CO2 is burned, specific amount of methane leeks out into the atmosphere. As a result, the total amount of CO2 is not decreased. This refutes the reading passage’s suggestion that when If coal is transported and pumped to coal mine, the CO2 molecule will attach with coal. Thus, CO2 will be stored for a long time. |