Nitrogen dioxide

1. Introduction Fossil fuels are used to satisfy a very significant fraction of the world energy demands. The use of fossil fuels comes with some adverse effects, prominent among which is the emission of CO2. Carbon dioxide significantly contributes to global warming and, consequently, causes climate change. This has called for international policies like the Kyoto protocol and Copenhagen summit that set limit on greenhouse gases (GHG) emission [1]. Renewable energy sources are carbon neutral…

low-input high-feasibility (LIHD) mixtures of grasses as a means for biofuel. These researchers planted 152 plots of various combinations of 1, 2, 4, 8, or 16 perennial grassland species (i.e. switchgrass) on agriculturally degraded and abandoned nitrogen-poor sandy soil in 1994. These plots were not used for agriculture, and did not require extra resources (fertilizers, excess water) to grow. As samples were collected and analyzed annually, the researchers found that LIDH biomass could provide…

was prepared with different molar ratios, n, ranging from 1 to 4 as shown in Equation (2.1). The result obtained was generally in the ratio of three SiO2 molecules to one molecule of Na2CO3 producing three molecules of sodium silicate and carbon dioxide gas released, shown as equation (2.2). Equation (2.1) n = SiO2 / Na2O Equation (2.2) 3SiO2 +Na2CO3 (3SiO2 , Na2O) + CO2 The result obtained was close to 3.3 : 1 (Brahmi, Merabet et al.…

Chapter 2 LITERATURE SURVEY 2.1. Characteristics of Hydrogen Sulphide 2.1.1. Physical and Chemical Properties H2S is a colourless gas characterised by a rotten gas odour which is highly toxic. It is soluble in different liquids including water and alcohols. It is typically formed under deficit oxygen conditions in the presence of organic matter and sulphate compounds (WHO, 2003). Hydrogen Sulphide is also present in the atmosphere in the range of 0.0001-0.0002 ppm though it may vary with places…

The cause of climate change, as well as the existence of a major climate change, has been a hotly debated topic over the past decade. While there were many warnings from different members of the scientific community before 2006, nothing seemed to bring more attention to the debate from more walks of life, than the move "An Inconvenient Truth". This movie was so revolutionary that its creator, Al Gore Jr., with the help of the Intergovernmental Panel on Climate Change would win the 2007 Nobel…

these machines they do not release carbon dioxide. Other ways to conserve energy is to turn off and unplug electronic devices while not in use (232b). Moves are being made to slow down carbon emissions. “The Kyoto Protocol requires developed countries to restrict emissions of carbon dioxide by 95% every year” (232c). Once the countries restrict the carbon emissions this will reduce the greenhouse gases. A few plans are already in place to decrease carbon dioxide in the atmosphere. One way would…

diabetes mellitus to name a few. Exercise duration, frequency and intensity all are relevant in triggering physiological responses in our bodies. For example, skeletal muscles demand an increase in oxygen and substrates and simultaneously remove carbon dioxide and metabolites (Burton et al., 2004). Furthermore, studies have conducted that demonstrate the peril of living an inactive and sedentary lifestyle. Thus, exercise can strengthen cardiac and respiratory variables by having them become more…

Climate change doesn’t always mean “hotter” it can also mean “cooler”. Natural events can cause climate change. Volcanic eruptions release enormous amounts of sulfur dioxide, a greenhouse gas, into the atmosphere in the form of tiny droplets of aerosol. The droplets of aerosol stay in the atmosphere and reflect the sunlight back into space, cooling the earth down. Even the natural gases that are produced are being produced…

Climate Change; Explained By NASA Some people think “climate change” is a fancy word invented to cover up “global warming.” Global warming sounds so scary, but climate change sounds like something we can help combat or something less scary than the thought of our planet burning up because of a hole in the ozone layer. It’s remarkable how word-choice can have such a big impact on our ideas and feelings towards things. It’s also interesting to see politically how people react to each set of words…

James Hansen said “Global warming isn’t a prediction. It is happening.” (Hansen, n.d., “Global Warming Quotes”). It seems that many of us don’t put a lot thought into how our actions impacts global warming. Taking a look at what our current CO2 level is at and comparing it over time and discussing what three main sources contribute to the CO2 levels will be presented. Also, discussing two sources that take CO2 out of the atmosphere will be presented as well. Then moving into deforestation and…