The greenhouse effect is a natural phenomenon, enhanced by human activities - Leaving Cert Chemistry - Question A - 2019

The greenhouse effect is crucial as it helps maintain temperatures that are suitable for life. Without it, the Earth would be too cold for life, making it impossible for organic processes to occur.

1. Burning fossil fuels for energy, which releases excess carbon dioxide into the atmosphere.
2. Deforestation, which reduces the number of trees that can absorb carbon dioxide, leading to higher concentrations of greenhouse gases.

1. Different gases exist in varying quantities in the atmosphere; for instance, carbon dioxide is more abundant than methane.
2. Gases have different abilities to absorb infrared radiation; some, like water vapour, are more effective at trapping heat than others.

Water vapour has a greater greenhouse effect compared to carbon dioxide due to its larger concentration in the atmosphere. However, carbon dioxide plays a significant role because it persists longer and has a crucial impact on the long-term regulation of Earth’s climate.