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UPSC CSE 2025 · PYQ · Climate Technology / Carbon Capture · medium

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
  4. D.None of the above statements is correct

Explanation

Direct Air Capture (DAC) is an emerging technology that extracts CO2 directly from ambient air. The captured CO2 can be permanently stored underground (carbon sequestration) — Statement I correct. The captured CO2 can be used as feedstock for plastics, beverages, and food processing — Statement II correct. In aviation, captured CO2 can be combined with green hydrogen to produce synthetic aviation fuel (e-fuels/SAF) — Statement III correct. All three applications are recognised uses of DAC technology.
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