Carbon dioxide was an abundant gas in the atmosphere in Earth's past. Its subsequent decline was caused primarily by…
1. Obtain 4 samples of each metal and clean with steel wool or sand paper. Wash your hands after cleaning the metals so you are not exposed to lead dust).…
Greenhouse Gases: Carbon dioxide (CO2) is a greenhouse gas in the atmosphere that may raise average temperatures on Earth. The burning of fossil fuels could be responsible for the increased levels of carbon dioxide. If current trends continue, future concentrations of atmospheric carbon dioxide in parts per million (ppm) could reach the levels shown in the accompanying table. The CO2 concentration in the year 2000 was greater than it had been at any time in the previous 160,000 years.…
Purpose: To determine relative oxidizing and reducing strengths of a series of metals and ions. Oxidation and reduction reaction occur simultaneously side by side. A reduction reaction occurs only if an oxidation reaction occurs and vise-versa. Electrons are given in oxidation while in reduction electrons are gained. Oxidizing agent is a chemical substance which has a large tendency to gain electrons, while reducing agent is a chemical substance causes other substances to be reduced and itself oxidized. Procedure: For this lab was used metals and substances provided in the lab oxidation-reduction pack, and some extra materials. Using the well-plate and the correct amount of drops and the right metal on the right well, to see the reaction with each different substance. Observations: This experiment required some time and patience to analyze the results. For each well required a different substance and a different metal to be inserted in the well. Different metals react faster or slower depending the substance they are added. Na2SO3 with magnesium bubbles appeared around the magnesium piece and we could predict a reaction. MgSO4 with zinc No reaction observed Zn (NO3)2 with lead and aluminum No reaction observed FeCl3 with lead and aluminum reacts with foil, the piece dissolves in the solution and the lead piece seems to be oxidizing. CuSO4 with iron the screw seems to be oxidized quickly; it changes the color of it to a pinkish tone.…
Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities. Carbon dioxide is naturally present in the atmosphere as part of the Earth's carbon cycle (the natural circulation of carbon among the atmosphere, oceans, soil, plants, and animals). Human activities are altering the carbon cycle--both by adding more CO2 to the atmosphere and by influencing the ability of natural sinks, like forests, to remove CO2 from the atmosphere. While CO2 emissions come from a variety of natural sources, human-related emissions are responsible for the increase that has occurred in the atmosphere since the industrial revolution.…
In John Farley’s “Human Produced Carbon-Dioxide Contributes to Global Warming”, he firmly believes that human’s are producing carbon dioxide that contributes to global warming (Farley, 72-80). His paper is fueled by facts and statistics. One of the facts he uses is the change of temperature before and after the industrial revolution. He writes that the CO2 levels had remained “around 280 ppm during the last 10,000 years” (Farley, 75). He then says that the CO2 levels have begun rising since the industrial revolution, and are “now 38% percent higher” than they were before the industrial revolution (Farley, 75). He tells how humans are contributing to increased Carbon Dioxide levels. He says that the increasing levels of Carbon Dioxide are caused by “the burning of fossil fuels” and “deforestation” (Farley, 73). These two are both human activities. He then uses the fact that many scientists agree with him. He says that other climate scientists attribute the rise of Carbon Dioxide after pre- industrial levels to “human activity” (Farley, 77). He goes on to explain the importance of Carbon Dioxide. He says that CO2 is either “9 percent or 26 percent of the greenhouse effect” (Farley, 78). He also says that the IPCC predict that the doubling of the CO2 in the atmosphere will “result in a temperature increase of a few degrees Celsius” (Farley, 79).…
Consider the following information: Every time we use fossil fuels, we release carbon dioxide into the atmosphere. Fuel must be burned to extract oil from the ground and process it; and then more fuel must be burned just to transport the fuel to where we buy it! Scientists believe that it is carbon dioxide emissions that are responsible for climate change, specifically the global warming effect.…
CO2 is one of the main gases contributing to global warming, which is scientifically proven to accelerate the natural process of climate change - currently the most serious environmental and…
(6) "Man 's contribution to atmospheric CO2 from the burning of fossil fuels is small, maximum 4% found by carbon isotope mass balance calculations." Segalstad, T. V. 1996: The distribution of CO2 between atmosphere, hydrosphere, and lithosphere; minimal influence from anthropogenic CO2 on the global "Greenhouse Effect". In Emsley, J. (Ed.): The Global Warming Debate. The Report of the European Science and Environment Forum. Bourne Press Ltd., Bournemouth, Dorset, U.K. (ISBN 0952773406), pp. 41-50.…
Carbon dioxide concentration has been increasing and it is because of the burning fossil fuel and rainforest burning as well. The pre industrial atmospheric concentration was a mere 270ppm or 270 parts per million but since the year 2012 is has increased to 400ppm. This can cause the man made part of the green house effect and can be blamed on the scientist for the global warming of the past century and plus more years. It is also believed that the concentration of methane in an extremely small amount which is measured also in the parts per millions has increased and had an effect on the greenhouse effect but is unknown what the specific reasoning is for it.…
In our society today global warming has become a topic of great debate. While many individuals are skeptical or disregard the theories regarding the Earth’s climate change, others look to the scientific literature that clearly supports the changes of our climate. According to the article “No Need to Panic About Global Warming”, global warming should be of no concern to individuals. “Many scientists and engineers who have looked carefully and independently at the science of climate” offer no evidence regarding the inflated climate changes and increased occurrence of aggressive greenhouse gasses. The article explains that carbon dioxide (CO2) is not a pollutant and is a key component to the life cycle of the biosphere. The author argues…
The carbon-dioxide content in the Earth’s atmosphere before 1500 A.D. was between 200 and 300 ppm. The carbon dioxide content today is about 450 ppm. Which single historical development can be blamed for this increase?…
The basic physics of global warming are pretty straightforward. Carbon dioxide reflects energy in the infrared region, rather than letting it pass through, leading to greenhouse effect. The greenhouse effect heats the Earth because greenhouse gases absorb outgoing radiative energy and re-emit some of it back towards earth. This was first discovered by Svante Arrhenius back in 1896. Burning coal and oil releases carbon dioxide (CO2), these two resources are what we use most to live the way we do today. We have direct measurements of CO2 concentrations in the atmosphere going back more than fifty years, and these measurements confirm that concentrations are rising rapidly. Though natural amounts of CO2 have varied from 180 to 300 parts per million (ppm), today 's CO2 levels are around 390 ppm, that 's 30% more than the highest natural levels. Scientists have confirmed with this information that the unnatural levels of CO2 are indeed manmade (How we know human activity is causing warming).…
First, carbon dioxide is not a pollutant as many claim. Carbon dioxide is good for plant life and is a natural constituent of the atmosphere. During Earth’s long history there has been more and less carbon dioxide in the atmosphere than we see today. Second, they claim that climate is stable and slow to change, and we are accelerating climate change beyond natural variability.…
Earth’s climate is changing. According to Climate Change Debate, “temperatures on earth have increased approximately 1.4°F since the early 20th century. Over this time period, atmospheric levels of greenhouse gases such as carbon dioxide (CO2) have notably increased.” Carbon dioxide is a gas that is formed in animal respiration and in the decay of animal and vegetable matter, it is also absorbed from the air by plants in photosynthesis. Although CO2 is often seen as something that is harmful, it is important for our habitat and the environment. CO2 is necessary because neither plants, animals, nor humans could survive, we must have plants for energy and food. Climate Change Debate says that, “the pro side argues rising levels of atmospheric…