Causes for the Global Warming

There are several causes for Global Warming there can be natural or caused by human I am going to mention some of them. One of these causes is Green house which it trap the energy in the atmosphere. There is also another cause that can trap the heat in the air and it's more than 20 times as effect as CO2 and that is Methane. The source for methane can be coming from rice, the rice is growing in the flooded fields. When the fields are flooded anaerobic conditions develop and the organic matter in the soil decomposes, releasing methane to the atmosphere