An inconvenient truth is a documentary film which has been introduced by the U.S. former Vice President Al Gore, which has pulled the attention of the people around the world to a very important issue which is global warming. Mr. Al Gore focused on the causes and effects of this problem and he helped in increasing the awareness of the people about global warming. Global warming is an average increase in the temperature of the earth and oceans during the last years due to the human caused increase in greenhouse gases or carbon dioxide emissions. As scientists claim that there is more carbon dioxide gas in the atmosphere now than there has been in the past years. The carbon dioxide stays in the atmosphere and it acts like a cover that keeps in the heat. That is called the greenhouse effect. The greenhouse gases help us to live on the earth, because it maintains the earth’s temperature which helps us to have the right conditions for breathable air and clean water. As a fact, the earth in general would be too cold to live in with out some greenhouse gases.
