Essay on Climate Change And Global Warming

1181 Words Nov 6th, 2014 5 Pages
Global Warming
Introduction
In this week’s assignment, we will discuss the composition of the earth’s atmosphere and possible effects on climate change/global warming by answering the following questions. First what are the current global carbon dioxide (CO2) concentrations? Then we will compare current CO2 numbers and see if this is higher or lower than the past 450,000 years? Next what are the three main ways that humans add CO2 to the atmosphere? What 'sinks ' take CO2out of the atmosphere? Then what are two ways in which deforestation contributes to the global warming process? Finally we will discuss if humans are possibly contributing to global warming, or is the climate change just a natural part of the cycle?
Current CO2 Concentrations Before we look at what the current global carbon dioxide (CO2) levels are what exactly is CO2? Carbon dioxide is a colorless, odorless, non-flammable and slightly acidic liquefied gas that is heavier than air (Air Products, 2014). Carbon dioxide is naturally present in the Earth’s atmosphere, oceans, soils, plants, and animals (EPA, 2014). CO2 is listed by the U.S. Environmental Protection Agency (EPA) as the primary greenhouse gas (gases that trap heat in the atmosphere) emitted through human activity (EPA, 2014). Now with a little background on what CO2 is let us look at the current global levels. The current CO2 concentration reading recorded from the Mauna Loa Observatory for the week ending November 1, 2014 was 396.89 parts…

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