Answer:
Human activity is the main cause of climate change. Burning fossil fuels like coal and oil releases carbon dioxide and other greenhouse gases into the atmosphere. These gases trap heat from the sun’s rays inside the atmosphere causing Earth’s average temperature to rise.
Deforestation is also a major contributor to climate change. Trees absorb carbon dioxide from the atmosphere and release oxygen back into it. When we cut down trees, we remove this important carbon sink, and the greenhouse gas levels in the atmosphere increase.
Other human activities that cause climate change include farming, raising livestock, and even things like making cement. All of these activities release greenhouse gases into the atmosphere, trapping heat and causing the Earth’s temperature to rise.