At first thought the essay topic global warming, seemed simple. After researching many sites, such as National Aeronautics and Space Administration (NASA), University studies, Intergovernmental Panel on Climate Change (IPCC) studies, Nongovernmental International Panel on Climate Change (NIPCC), and more, global warming is very complicated. It hinges on many factors, solar activity, deforestation, increase in carbon dioxide from forest floors, obliquity (change in axil tilt of Earth), volcano eruptions, water vapor, fossil fuel use, methane gases, cloud cover and other factors. There are many effects on the global temperature, two of the major ways used to study this topic are Global Climate Models (GCM) and observational studies conducted all over the world. The majority of scientific studies indicate that the main cause of global warming is, increased levels of carbon dioxide into the atmosphere. Some research shows that natural occurrences are the main source of global warming. This essay will argue that carbon dioxide released into the atmosphere, by man-made actions is the main reason for the global temperature changes, secondary, are natural occurrences.
Some believe that, carbon dioxide in the atmosphere causes a warming effect on the atmosphere. This carbon dioxide, as the majority of studies have shown, has contributed to the rise in global temperature. There has been a lot of research to explain this. One of the best ways to study global warming are computer models. Computer models use mathematical equations in
a computer program that describe how atmospheric temperature, air pressure, water, ice,
and other data to study global climate. In addition equations that include greenhouse elements such as carbon dioxide, methane, water vapor and others that also effect temperature change. This type of modeling has been done since the mid 1950’s. These computer models are used because there are so many factors that are part of climate change. The new, Harmonic computer models used by NASA, are much more effective for predicting climate than even models from just two years ago (IPCC). These models make predications based on mathematical equations and data which is supplied. Computer models, don’t guess or have prejudicial theories, so they are one of the best ways to study global warming. NASA and IPCC released the most current information on global warming, which stated that It is extremely likely that human influence has been the dominate cause of the observed warming since the mid-19th century. “The evidence for this has grown, from more and better observations, an improved understanding of the climate system response and improved...