The United Nations Framework Convention on Climate Change (UNFCC), located in Bonn, Germany, defines climate change as “a change of climate which is attributed directly or indirectly to human activity that alters the composition of global atmosphere and which is in addition to natural climate variability observed over comparable time periods.” Global climate change poses a serious threat that can generate social upheaval, population displacement, economic hardships, and environmental degradation. In order to achieve a green world, according to the new ecological trends in society, mitigation of global climate change should be a priority for the world and its governments.