The primary greenhouse gas emitted by human activities is carbon dioxide (CO2). Its increase in the atmosphere is mainly due to the burning of fossil fuels, deforestation, and various industrial processes. The rise in CO2 contributes significantly to global warming and climate change by trapping heat in the atmosphere. Other greenhouse gases include methane and nitrous oxide, but CO2 remains the most prevalent due to its volume and long-lasting effects. Reducing CO2 emissions is critical for mitigating climate change and promoting environmental sustainability.