Q.31 The carbon credit system helps
- Areduce noise pollution
- Breduce soil pollution caused by agricultural wastes
- Creduce greenhouse gas emissionsCorrect
- Dreduce water pollution caused by chemicals
Solution
Concept
One carbon credit equals 1 tonne of CO2 (or equivalent GHG) that is not emitted. It is used to control greenhouse gas emissions.
Step-by-step solution
1. Carbon credits came from the Kyoto Protocol (1997). 2. One credit = right to emit 1 tonne of CO2 equivalent. 3. Industries that emit less can sell credits. Industries that emit more must buy them. 4. So the system reduces greenhouse gas emissions. Answer is (C).
Explanation
The carbon credit system is a market-based tool for cutting greenhouse gases like CO2 and methane. Companies that reduce emissions earn credits and can sell them. This gives a money reason to pollute less and helps control global warming.
Why the other options are wrong
A: Noise is not measured in carbon credits. B: Soil pollution from farm waste is not the target of carbon trading. D: Chemical water pollution is controlled by effluent standards, not carbon credits.
Shortcut
Carbon credit means CO2, which means greenhouse gas, which means global warming.
Common mistake
Thinking carbon credits cover all types of pollution. They only cover greenhouse gases.
Correct answer: C) reduce greenhouse gas emissions