Part 1 of Essay
, an increase in the average temperature on Earth, is getting worse. The Earth has warmed 0.3 to 0.6 degrees Celsius since the late 1800s. Scientists believe that the cause is the greenhouse effect, the process of trapping heat in the Earth's atmosphere because of the presence of large amounts of carbon dioxide, chlorofl ....

Part 2 of Essay
.... we are allowing for more of the carbon to be exposed into the atmosphere. Another factor that most people would not consider in the raising of global warming is the excrement of cows. Cows produces tons of carbon that does not all get treated for, and is in the top five for highest amounts of carbon produced per year. This is another factor that somehow has to be dealt with. All of these causes of global warming have been know by scientists, it's the effects we are seeing in today's climate now they had no ....