Apart from greenhouse gases, forest destruction and population are other causes of global warming. The advances in technology increase the human population use fossil fuels for heat, transportation and manufacturing yet the level of greenhouse gases go along to increase. As the human population increase, mankind need high technology and energy to power the industrialized lifestyle and it will use the land without control which the process of deforestation continues. On the other hand, the more and more carbon dioxide is unable to be stored and it is driving the process of global warming. Deforestation increases severity of global warming due to land-use change. The process of photosynthesis occur when all the living plant absorb carbon dioxide and release oxygen. Hence, it creates an optimal balance of gases in atmosphere. Unfortunately, as living plants decay due to being logged for timber and industries perform critical greenhouse effect. There is less carbon dioxide can be recycled and it is released back into atmosphere meanwhile less carbon dioxide conversion to oxygen. Therefore, deforestation will cause more problems toward our earth in the future.