Q. Consider the following:
- Methane
- Carbon Dioxide
- Stratospheric Ozone
Which of the above is/are greenhouse gases that contribute to climate change?
Answer:
Only 1 & 2
Notes:
- Methane is a potent greenhouse gas, 80 times more effective than carbon dioxide over a 20-year period, contributing to global warming.
- Carbon dioxide is the primary greenhouse gas emitted by human activities, particularly through fossil fuel combustion, and it remains in the atmosphere for a long time.
- Stratospheric Ozone (O₃), while crucial for blocking harmful UV radiation, is not a significant contributor to the greenhouse effect. Tropospheric ozone (not stratospheric) is a greenhouse gas.