With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct?

Environment & Ecology ·Previously asked in UPSC Civil Services Examination 2025

View the full solved paper: GS Paper I

Question

With reference to 'Direct Air Capture', an emerging technology, which of the following statements is/are correct?

I. It can be used as a way of carbon sequestration.

II. It can be a valuable approach for plastic production and in food processing.

III. In aviation, it can be a source of carbon for combining with hydrogen to create synthetic low-carbon fuel.

Select the correct answer using the code given below.

  1. A. I and II only
  2. B. III only
  3. C. I, II and III (Correct answer)
  4. D. None of the above statements is correct

Correct Answer

Option C — I, II and III

Detailed Solution & Explanation

The correct answer is I, II and III.

Key Points

  • Direct Air Capture (DAC) extracts CO2 directly from ambient air.
  • The captured CO2 can be: (I) stored underground for carbon sequestration; (II) used as feedstock in chemical synthesis including plastics and as a preservative in food processing (carbonation); (III) combined with hydrogen (made from renewables) to create synthetic aviation fuel (e-fuel/SAF).
  • All three uses are correct.