In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be the potential sites for carbon sequestration?
- Abandoned and uneconomic coal seams
- Depleted oil and gas reservoirs
- Subterranean deep saline formations
Select the correct answer using the code given below:
[UPSC Civil Services Exam – 2017 Prelims]
(a) 1 and 2 only
(b) 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (d)
Explanation:
- Carbon sequestration is the process of capturing and storing atmospheric carbon dioxide, aimed at reducing the amount of this gas in the atmosphere.
- Various methods are employed for this purpose.
- For instance, abandoned coal seams can be used to trap CO2, and CO2 can be injected into oil fields to enhance oil recovery.
- Additionally, forests and wetlands serve as natural carbon sinks, while subterranean deep saline formations can also be used for carbon storage.
- Therefore, statements 1, 2, and 3 are all correct.
