Carbon dioxide (CO₂) is the largest contributor to anthropogenic greenhouse gas forcing. Its contribution to global warming is significantly higher than 40%. Approximate relative contributions of major anthropogenic greenhouse gases to radiative forcing since the pre-industrial era are typically cited as: - Carbon Dioxide (CO₂): ~60-65% - Methane (CH₄): ~15-20% - Chlorofluorocarbons (CFCs) and other halocarbons: ~5-10% - Nitrous Oxide (N₂O): ~5-10% The given figure for CO₂ (40%) is substantially lower than its actual contribution, making it the incorrect pair. The figures for CH₄ (20%), CFCs (14%), and N₂O (6%) are within plausible ranges or reflect historical/specific calculation methodologies, but CO₂'s dominance is much greater than indicated by 40%.
The relative contribution of different green house gases to global warming is given below. Identify the incorrect pair.
Asked in UKPSC CS Prelims 2024 · Topic: Greenhouse Effect and Climate Change (Composition, Sources, and Radiative Forcing of Major Greenhouse Gases (GHGs))
More Environment and Ecology questions
- Methane is emitted from which of the following?
- The gas, which is emitted in the paddy fields and increases the earth's temperature is
- Which one of the following is NOT a green house gas found naturally in the atmosphere?
- Which of the following is NOT a green house gas?
- Which one of the following is not correctly matched? Green House Gas - Source
- Which one among the following is not a greenhouse gas?
- Methane is a very potent green house gas. It is converted to carbon dioxide to ease its overall effect on global warming. This process is known as :
- Which one among the following substances is NOT a 'green house' gas ?
