Excess carbon dioxide (CO2) in the atmosphere contributes to several significant environmental issues. This increase leads to global warming and climate change, as CO2 is a potent greenhouse gas that traps heat. The results include rising global temperatures, altering weather patterns, and intensifying extreme weather events. Additionally, higher CO2 levels result in ocean acidification, affecting marine life, particularly organisms with calcium carbonate shells. Efforts to reduce CO2 emissions are crucial for mitigating these impacts and promoting environmental sustainability.