The primary factor that influences climate change is the increase of greenhouse gases in the atmosphere, especially carbon dioxide (CO2). Human activities such as burning fossil fuels, deforestation, and industrial processes have significantly elevated these gas levels, trapping heat in the atmosphere. This enhanced greenhouse effect leads to global warming, resulting in changes to weather patterns, rising sea levels, and more extreme weather events. Efforts to mitigate climate change focus on reducing fossil fuel consumption, increasing energy efficiency, and promoting renewable energy sources.