Before The Birth Of Science, The Origin Of Fire Could Only

Coal is the dirtiest of all fossil fuels. When burned, it produces emissions that contribute to global warming, create acid rain and pollute water. With all of the talk surrounding nuclear energy, hydropower and biofuels, you might be forgiven for thinking that grimy coal is finally on its way out. On the other hand, coal is no sooty remnant of the Industrial Revolution - it generates half of the electricity in the United States and will likely continue to do so as long as it's cheap and plentiful . Clean coal technology seeks to reduce harsh environmental effects by using multiple technologies to clean. Coal is a fossil fuel composed primarily of carbons and hydrocarbons. Its ingredients help make plastics, tar and fertilizers. A coal derivative, a solidified carbon called coke, melts iron ore and reduces it to create steel. But most coal - 92 percent of the U.S. supply - goes into power production .Electric companies and businesses with power plants burn coal to make the steam that turns turbines and generates electricity. When coal burns, it releases carbon dioxide and other emissions in flue gas, the billowing clouds you see pouring out of smoke stacks. Some clean coal technologies purify the coal before it burns. One type of coal preparation, coal washing, removes unwanted minerals by mixing crushed coal with a liquid and allowing the impurities to separate and settle. Other systems control the coal burn to minimize emissions of sulfur dioxide, nitrogen oxides and

In the United States, 42 percent of the nation’s electricity is generated by burning coal as coal is cheap and plentiful.

Imagine a world where the air is always clean, free of pollution. A place where children with asthma need not to worry of the air quality in the inner cities. A world where the energy produced to heat a home, turn on a light bulb, and charge your cellphone is always abundant and affordable. Doesn’t this world sound like a wonderful place? Turns out this world isn’t just a figment of the imagination. In fact, we are on the verge of a technological breakthrough that can take steps towards making this fantasy a reality. What is this innovation? It is Clean Coal Technology.

Clean coal technology usually addresses atmospheric problems resulting from burning coal. Historically, the primary focus was on sulfur dioxide and particulates, since it is the most important gas in the causation of acid rain. More recent focus has been on carbon dioxide (due to its impact on global warming) as well as other pollutants. Concerns exist regarding the economic viability of these technologies and the timeframe of delivery, potentially high hidden economic costs in terms of social and environmental damage, and the costs and viability of disposing of removed carbon and other toxic matter. More, the byproducts of coal power production range from fly ash sludge ponds full of mercury, arsenic, and sulfur in unlined ponds that can leak into the water supply.

As we go throughout life, we use various kinds of energy sources for our needs. Whether it be from solar energy to wind energy, there is a multitude of sources that allow us to do the things we do each and every day. Throughout the world, however, coal and nuclear power have risen to the

Nowadays, coal is still one of the greatest used energy to generate power in so many countries. Using coal in electricity generation is 93% in South African, 87% in Poland, 79% in China, 78% in Australia, 45% in USA, 41% in Germany, 58% in Israel etc. (Coal & Electricity) From the data above, even the developed countries use coal to generate power as the main source. In many developed countries, energy generation is still based on coal as a long-term source. In recent years, although there is an increasing number of equipment using gas and wind to generate the power, it is still lower than the proportion of coal-fired power generation. The reason why most countries choose coal as a main source to generate electricity, is that there are many advantages in using coal to generate electricity. First of all, coal is the

Coal’s reputation has become as black as coal itself, but without it the quality of life that hundreds of millions of people enjoy today would not be possible. Coal has been used in many ways throughout history and it will continue to be a vital resource in supplying the energy needed to fuel an energy hungry world. Research cited throughout this paper suggests that coal is an energy source for the future because it is stable and reliable with abundant reserves, it is the most affordable and efficient fuel source used to produce power, and because of new clean coal technologies, coal can be burned with minimal to no damage to the environment.

As far back as the Roman Empire, and indeed probably long before then, coal has been used by humans as a source of heat, providing many advantages over wood, charcoal and other fuels. However, it wasn 't until the introduction of the steam engine that coal became a major part of shaping the world. Fueling the industrial revolution, the high energy concentration of coal made it the standard source of everything from trains to power plants. Coal companies claim that coal, though not perfect, is the best source of energy at this moment, and the negative effects are being mitigated even as we speak. Consumers have a high demand of energy, that cannot be sated by other sources. To this very day, coal continues to drive forward the world, but

On top of emitting 1.9 billion tons of carbon dioxide each year, coal-fired power plants in the United States also create 120 million tons of toxic waste. That means each of the nation's 500 coal-fired power plants produces an average 240,000 tons of toxic waste each year. A power plant that operates for 40 years will leave behind 9.6 million tons of toxic waste” (2009). Coal Combustion Residue despite containing toxic metals such as arsenic, mercury, lead, selenium, and cadmium that are proven to cause cancer, kidney problems, birth defects, and wreck havoc on the nervous system. Coal Combustion Residue can is disposed by either being land filled, used to reclaim mine shafts, or are stored in pits on-site of coal burning plants. Even without a spill these contaminants can leach into the ground and pose a health risk if they are not disposed of properly.

Most of the electricity around the world comes from burning fossil fuel such as coal, natural gas and oil. According to the U.S. Department of Energy, nearly half of the electricity used in the U.S comes from burning coal; in America, coal is mined in 26 out 50 states making coal the most abundant and cost the lowest to generate electricity. Although cheap, it is controversial to keep mining coal because it is destroying about environment. Mining coal disrupts the surround land, contaminates the water, and pollutes the air.

Many of these are released into the atmosphere as hazardous air pollutants…and many of them are harmful to health” (Lockwood 17). The EPA has done many studies to determine the elements that are released from the burning of coal and the amount of each is measured. While the amounts may be minute, over time with exposure they can damage to human organs. For this reason many activists desire to eliminate or slow down the use of coal for generating electricity. While it is true that the elements and compounds are harmful to humans, the amount of some of these elements is not truly harmful. The benefits of having cheap energy far out way the negatives from the pollution. The average life expectancy is on the rise around the planet and cheap energy has improved the lives of many in poor countries. The U.S. government and the EPA have created many laws to protect citizens and to force coal burning facilities to reduce emissions. Renewable sources for energy are good, but the sun does not always shine, nor the wind blow, and at those times, coal is

Unfortunately, there are many disadvantages associated with the combustion of coal energy. For example coal releases a tremendous amount of carbon emissions that negatively contribute to climate change and global warming. Coal burning is considered not environmentally friendly due to the large production of harmful by-products such as nitrogen, carbon dioxide and sulfur dioxide. This pollution can lead to other major problems for example acidic rain, as well as hazardous health risks to our eco-systems. Globally, scientists agree that the release of greenhouse gases are contributing to the earths rise in temperature, which leads to rising sea levels, disappearing glaciers and change in annual weather patterns. The main problem associated with

Imagine your daily life and how much technology is integrated into it, now, even if you don’t think that you use a lot of technology, remember that most of what we use today in our daily lives, need some sort of electricity to make it, or run it. We live in a world that is almost dependent upon electricity, modern life is unimaginable without electricity. Coal produces almost half of the electricity we use. There is much controversy about coal and why we rely on it so heavily. The question that emerges from this controversy is “should we be mining and processing as much coal as we do on a daily basis, and should we downscale, or find alternatives?”

The coal industry has shaped our world for over 200 years. Its need is based on the cheap price of energy that it provides to its consumer. Today, coal is still cheap in price and a reliable product for its consumers, but it provides harmful CO2 emissions to our planet and can be expensive to build new plants. Still the coal industry is something that will never go away. It will continue to decline as renewables and other energy resources come into play for specific developed nations, but will never be taken completely from these economies and younger nations.

CO2 is the most significant greenhouse gas, which mainly comes from the use of fossil fuels. Many people feel that content of CO2 in the atmosphere is the main reason for manmade global warming. The main sources of CO2 emissions involve electricity generation, industrial processes, fumes from transportation and commercial buildings and use. Emissions of greenhouse gases, such as CO2, to the atmosphere are expected to cause even more of a significant change in global climate (Davison, 2007). The main focus to try to reduce the amount of carbon dioxide in the atmosphere is to reduce the amount that is released from coal-fired power plants. Greenhouse gas emissions that involve the productions of electricity come from natural gas production and coal-fired power plant operations. Natural gas production accounts for twenty-four percent and coal-fired power plant operations accounts for seventy-five percent, while the other one percent is caused by other electricity generation operations. The main reason why coal-fired power plants have a higher percentage of emissions is because the sulfur content of coal is much higher than that of other fossil fuels (Jarmaillo et al., 2007). This proves that there is a great need to find an alternative fossil fuel to use instead of coal. Although coal is easy to mine, transport and process for the electricity generation process, it is also the