Climate change is a change in the earth's normal temperature. Climate change is caused by many things. The main causes of climate change are human activity and the burning of fossil fuels. For example when you buy gas and palm oil you are supporting climate change. Another example is when you do everyday things you use energy and to get energy you burn coal. When you burn coal you are polluting the air. Climate change is also caused by natural events such as volcanic eruptions and different levels of CO2. After the next 12 years the earth will have a higher temperature than 1.5 Celsius. Even with the slightest change in the temperature there will be catastrophic consequences. We have the next 12 years to revert climate change.