Answer:
It affects the atmosphere because it causes global warming
Step-by-step explanation:
Extra carbon dioxide in the atmosphere increases the greenhouse effect. More thermal energy is trapped by the atmosphere, causing the planet to become warmer than it would be naturally. This increase in the Earth's temperature is called global warming .
Carbon dioxide isn't only affecting the atmosphere, according to NASA. It has also made the oceans about 30 percent more acidic, affecting a wide variety of sea organisms. That percentage is also expected to rise in the coming years.