No, it is not possible to burn something without producing carbon dioxide (CO2) as a byproduct. Burning, or combustion, is a chemical reaction that involves the combination of a fuel source (such as wood, coal, or gasoline) with oxygen. This reaction produces energy, heat, and various byproducts, including carbon dioxide (CO2) and water vapor (H2O), as well as other combustion products depending on the specific fuel and conditions.
Carbon dioxide (CO2) is a natural byproduct of the combustion process because it is the result of carbon (C) combining with oxygen (O2) from the air. The carbon in the fuel source combines with the oxygen in the air to form CO2. This is true for most organic materials, including fossil fuels and biomass.
While it is not possible to burn something without producing CO2, there are alternative forms of energy generation and technologies that aim to minimize or capture CO2 emissions to mitigate their impact on the environment. These include renewable energy sources like solar and wind power, as well as carbon capture and storage (CCS) technologies that aim to capture and store CO2 emissions from power plants and industrial processes.