If the energy in or the energy out changes, Earth's temperature and its climates also change. Changes in the Earth's atmosphere may affect climate and this includes changes in the clouds. Earth's atmosphere may affect the energy balance. In 1816, people wore winter coats to July fourth parades, and snow still lay on the ground in June. This unusual summer happened the year after a volcano erupted.
Some volcanic gases form acid droplets in the atmosphere.
The droplets and dust may have blocked the sun's energy. In a feedback process, a change results in an effect that then causes more change. Feedback processes may cause climate changes. Compare Earth's temperature to the money in a bank account. Sunlight, on its way to the earth's surface, passes through the atmosphere.