List the factors that contribute to global warming.
The factors that contribute to global warming are:
1. Burning of coal and petroleum products (sources of carbon dioxide, methane, nitrous oxide, ozone);
2. Deforestation, which increases the amount of carbon dioxide in the atmosphere
3. Methane gas released in animal waste; and
4. Increased cattle production, which contributes to deforestation, methane production and use of fossil fuels.