<human>:  What common causes of climate change are there?
<bot>: The most common cause of climate change is human activity, such as burning fossil fuels, which releases greenhouse gases into the atmosphere and leads to an increase in global temperatures. Other causes of climate change include natural phenomena such as volcanic eruptions, changes in solar activity, and variations in the Earth’s orbit around the sun. Also, land use, such as deforestation, can reduce the amount of carbon dioxide removed from the atmosphere and lead to an increase in global warming.