Furthermore, the second largest source of carbon dioxide producer is petroleum, which emits about three-fourths of carbon dioxide as combustion of coal (Biologicaldiversity.org, 2014). It plays a vital role as the energy sources for global transportation because thousand millions of cars, trucks and motorcycles burn petroleum to operate, and it simultaneously release atmospheric carbon dioxide, which has caused Earth’s temperature to increase. In 2009, 32.8 percent of global energy was supplied by burning petroleum and globally emitted 36.7 percent of carbon dioxide (C2es.org, 2014). Moreover, Natural gas is also contributing to the greenhouse gases emissions, although it releases only half of carbon dioxide comparing to burning coal (Biologicaldiversity.org, 2014). Because of the lower carbon content of natural gas and the higher efficiency, which gas can be generated to electricity, so shifting from coal to gas in electricity conversion will reduce the greenhouse emissions by 50 percent.
2009. Largest Producers of Greenhouse Gas Emissions [Online]. Available: http://www.suite101.com/content/largest-producers-of-greenhouse-gas-emissions-a166117. [Accessed 8th Feb 2011] Ponce, V, M. n.d. THE 33 FACTS ABOUT GLOBAL WARMING [Online].
(5-1) For example, the United States, for the nine month period of January to November 2000, ?had the warmest nine month period since records began in 1895.? because we use the most fossil fuels and put out the most greenhouse gasses (6-1). This was all caused by the growing industrial age that we live in today. Why do greenhouse gases produce global warming? ?Infrared active gases (IR), principally water vapor (H2O), carbon dioxide (CO2), and ozone (O3), naturally present in the Earth?s atmosphere, absorb thermal IR radiation emitted by the Earth?s sur... ... middle of paper ... ...hat take and do not give.
Each component of the atmosphere guards the Earth’s current habitable state. CO2 is released and absorbed into the atmosphere as part of the carbon cycle. CO2 is... ... middle of paper ... ...d through various ice ages, punctuated with brief warming periods through its geological history. The last 10,000 to 50,000 years, the Earth has experienced global warming. The CO2 concentration levels are strongly linked with the warming and cooling of the Earth.
Global Warming: A Natural Process The Earth’s current CO2 level is at 393.84ppm (CO2now, 2013). This is the highest of the high levels in the past 450,000 years. Extra carbon dioxide in the air is believed to keep temperatures steady and contributing to the greenhouse effect which causes the planet to warm. Scientists believe that humans add CO2 through the burning of fossil fuels, deforestation, and livestock farming to name a few. Natural processes also contribute to the CO2 emitted into the atmosphere including forest fires.
The addition of excess greenhouse gasses is seriously enhancing natural global warming. The Intergovernmental Panel on Climate Control’s (IPCC) climate model projections show an increase of temperature between 1.1 and 6.4 degrees centigrade, 2 and 11.5 degrees Fahrenheit, by the end of the 21st century, when compared to the temperature increase between 1980 and 1999... ... middle of paper ... ...images/report/WG1AR5_ALL_FINAL.pdf Union of Concerned Scientists. (2009, December 16a). How Geothermal Energy Works. Retrieved from Union of Concerned Scientists: Clean Energy: http://www.ucsusa.org/clean_energy/our-energy-choices/renewable-energy/how-geothermal-energy-works.html Union of Concerned Scientists.
There are a few major causes of theses heat trapping gases. According to a study conducted by Dr. Gerald Meehl, Warren Washington, T.M.L. Wigley, Julie Arblaster, and Aiguo Dai from the National Center for Atmospheric Research in Boulder Colorado, the main contributors to global warming are derived from human activities. Since the start of the industrial revolution, atmospheric concentrations of CO2, CH4, and N2O have increased by 30%, 145%, and 15%k respectively. The gases are emitted mainly by cars, power plants, and other industrial sources that burn gasoline, coal, and other fossil fuels.
These synthetic gases accumulate to the already natural gases and increase the amount of heat that gets trapped in the atmosphere (Simon et al., 2007). Some sources indicate that humans have been increasing to the rise in carbon dioxide and methane levels as well (Stanford Solar Center, 2008). The Stanford Solar Center (2008) also notes that the increase in carbon dioxide levels is due to the burning of fossil fuels and the change in land usage, while methane level increases are a result of agriculture. Within the last decade are concerns about global warming have heightened and with good reason. The rate at which the earth is warming is what is so alarming, since it can have such a profound negative impact on the ecosystem.
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.
The only two solutions to the research question is the plants will either absorb the higher amount of carbon dioxide and increase photosynthesis, or the plants won't be fully adapted to this exposure and wilt. When plants are exposed to high levels of carbon dioxide, then plant growth has mostly positive effects. There has been a 30-50% increase in carbon dioxide since the industrial revolution began. The amount of carbon dioxide in the atmosphere during the pre-industrial era was 280.0 ppm, and by 2000 the concentration in the atmosphere increased to 367.0 ppm.1 Before the industrial revolution, CO2 levels "represented the baseline CO2 to which much of the world's flora adapted".2 This means that plants have adapted to lower concentrations of CO2, so researchers now wonder how will plants that are used to lower levels of CO2 adapt to the increasing levels of carbon dioxide in the atmosphere. Plant adaptation in future elevated CO2 levels have to depend on structural adaptation of the plants.3 If the plants aren’t structurlly able to hold too much carbon dioxide at once, then the plants will start to die.