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UPSC Prelims 2021 Paper-1 📅 10 Oct, 2021

What is blue carbon?

A
Carbon captured by oceans and coastal ecosystems
B
Carbon sequestered in forest biomass and agricultural soils
C
Carbon contained in petroleum and natural gas
D
Carbon present in atmosphere
Result Summary
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APEDIA

UPSC Prelims
2021 • 10 Oct, 2021 • Paper-1
What is blue carbon?
Correct Answer
Carbon captured by oceans and coastal ecosystems
Terminological Definition: In environmental science, 'Blue Carbon' specifically refers to the carbon dioxide removed from the atmosphere and stored permanently ......
💡 Analysis & Explanation
Terminological Definition
In environmental science, 'Blue Carbon' specifically refers to the carbon dioxide removed from the atmosphere and stored permanently by the world's coastal and marine ecosystems.
Key Ecosystems
These vital carbon sinks primarily include mangroves, tidal marshes, and seagrass meadows, which are highly efficient at sequestering carbon in their underlying sediments compared to terrestrial forests.
Contrast with other types
'Green carbon' refers to carbon stored in terrestrial forests and soils, while carbon in fossil fuels is sometimes termed 'black or brown carbon'.
Conclusion
The term exclusively identifies the carbon management capacity of oceanic and coastal environments.