The primary gas responsible for climate change is carbon dioxide (CO2). This greenhouse gas is a byproduct of burning fossil fuels, deforestation, and various industrial processes. CO2 traps heat in the Earth's atmosphere, leading to global warming and climate disruption. While naturally present in the environment, the rapid increase in CO2 levels due to human activities has raised concerns among scientists and policymakers. Addressing carbon emissions is essential for mitigating the effects of climate change, and efforts include transitioning to renewable energy sources, enhancing energy efficiency, and promoting reforestation.