Global warming or climate change. A major problem in our world today. Observed from the Earth's temperature is rising. The main cause of this problem is caused by greenhouse gases. Greenhouse Are important to the world because of carbon dioxide or methane, will retain some heat in the earth, not to reflect back into the atmosphere, otherwise the whole world will become a moon. The very cold at night and hot during the day. Because there is no atmosphere to filter energy from the sun. Which makes the world warmer