← All questionsGS3 · 2025 · Science & Technology ·Carbon Capture, Utilisation and Storage
QUESTION 7
GS3
10 marks

What is Carbon Capture, Utilization and Storage (CCUS)? What is the potential role of CCUS in tackling climate change?

WRITE IN
7 min
150 words

What the examiner wants

Explain what CCUS is and assess its potential in tackling climate change, including for India.

ExplainMake clear how and why it happens: causes, process, and an example for each point.

Demand-wise check

  1. 1What it is: capturing CO2 from power plants, industry or air; using it (urea, fuels, building materials) or storing it underground≈35 words
  2. 2Role: needed for hard-to-abate sectors (cement, steel), negative emissions with bioenergy (BECCS), enhanced oil recovery≈35 words
  3. 3Limits: cost, energy penalty, storage safety, slow scale-up; India's NITI Aayog roadmap≈35 words

Open in about 20 words and close in about 20.

Answer plan

DefineCapture, use, storageRoleLimitsIndiaConclusion

Where marks usually go

  • Not covering both use and storage
  • No limits

Draw this

  • Flow: source → capture → transport → use or store

Value addition

  • ReportNITI Aayog's 2022 report outlined a CCUS policy framework for India's net-zero goals.NITI Aayog, CCUS Policy Framework, 2022
  • DataIEA says operating CCUS capture capacity is only about 0.1% of global energy-related CO2 emissions.International Energy Agency