1. Carbon Dioxide (CO2): The primary greenhouse gas produced by human activities. It's released primarily from burning fossil fuels (coal, oil, natural gas) for electricity, transportation, and industry.
2. Methane (CH4): A potent greenhouse gas emitted from sources like livestock, natural gas leaks, landfills, and rice cultivation.
3. Nitrous Oxide (N2O): Another significant greenhouse gas, often released from agricultural activities like fertilizer use, industrial processes, and combustion of fossil fuels.
4. Sulfur Dioxide (SO2): A major air pollutant, mainly produced from burning fossil fuels, particularly coal. It contributes to acid rain and respiratory problems.
These gases, along with others, contribute to climate change, air pollution, and other environmental issues.
