Edit Metric
|
||||||||||||||||||||
Details
|
||||||||||||||
Coal can be very dirty. When you pick up a briquette to put in your barbeque, your fingers turn black; when coal is burned in power plants and factories, the smoke released into the atmosphere is just as dirty. Since the Industrial Revolution, public outcry over acid raid, smog, and global climate change has forced coal producers to consider the cleanliness of the energy source. New, clean energy sources, like wind energy and solar power, have recently stormed the market; none of them, however, are as cost-efficient as coal, but they are all far friendlier for the environment. Coal companies have responded by beginning development of a new technology, clean coal technology, as a way of accessing coal's efficiency while removing the impurities that cause most environmental issues. Coal has always been a strong investment because it has always been a major source of American power generation; new sociopolitical trends, however, are threatening coal's position on top, and clean coal technology may be the only way that coal companies can properly fight back. Read here for companies positively and negatively affected by clean coal
[edit] Who Benefits
[edit] Who HurtsAlternative energy companies and their affiliates stand to lose the most from the advent of cleaner coal technologies.
all stand to lose from the increased popularity of coal as a method of electricity generation that would result from a drop in all coal emissions (including carbon). [edit] Trends and Forces[edit] Coal's Abundance and Cost-EfficiencyThough coal is a nonrenewable resource, it is highly abundant in the U.S. and China, two places where energy is in great demand. It is believed that 25% of the world's coal supply is in the U.S., and though coal companies are forced to refrain from most highly damaging mining practices, the product is relatively cheap and easy to extract. In the short run, this makes coal a highly utile natural resource in terms of U.S. energy production, but in the long run, it is projected that the reserves will only last another 250 years at current consumption rates. While this may seem like a long time, one must consider how consumption is growing exponentially. [edit] Increasing Worldwide Demand for EnergyThe world's economy is growing quickly, fueled by the extreme growth of hugely populated developing countries like India and China. As economies grow, due to the proliferation of industrial technology and manufacturing jobs, there is an increasing need for energy. 84% of U.S. coal is used to produce electricity, but coal around the world has many uses. The fuel is used to power factories and steel blast furnaces, manufacture synfuels, and, in developing countries, power steam engines and heat homes. Coal is the most cost-efficient source of energy in the world; currently, coal is abundantly found, cheaply harvested, and burns with a relatively high efficiency of 33% energy converted to electricity (compared to a high 18% for solar panels). Because of this, many developing countries have and may turn to coal as an economically viable source of energy to power their expansion. China, for instance, has seen huge increases in its demand for natural resources, of which coal is a major one; over 80% of China's installed capacity is coal-powered, and capacity continues to grow. Similar trends are unfolding in other developing countries like India, though many are tempering the effects of coal power by installing other forms of electricity production, like wind. [edit] ChinaWhile 25% of the world's reserves are in the U.S., 40% or more of the world's production is in China. China's abundance of coal and it's growing electricity use make it the world's largest coal producer, user, and polluter. For this reason, many environmental groups around the world are pressuring China to shift its energy production in line with the Kyoto Protocol; coal companies in China and around the world are attempting to meet this demand for environmental friendliness while maintaining coal's energy dominance by developing clean coal technology. [edit] Environmental ConcernsWhen burned, coal's simple impurities combine to create environmental problems like smog and acid rain. Furthermore, the burning of any carbon-based substance creates carbon gases, like carbon dioxide and methane, that act as greenhouse gases. While coal has an average efficiency of 33% energy output, its dirtiness makes it highly undesirable in and environmental and social context, which is the primary reason that clean coal technology (if developed) could be so important. [edit] Traditional Clean CoalTraditional clean coal technology works by removing impurities from the coal, allowing more carbon and oxygen to react when the coal is burned. Such technologies also act after the burning, filtering ash and pollutant gases like NO2 out of the emissions. This is a highly useful technology in terms of ending localized environmental degradation such as acid rain and smog. For the most part, however, when coal producers claim such technologies "emissions-free", they are referring to traditional pollutant emissions - ash, NO2, etc. Now, with increased public interest in the challenge of global climate change, carbon-based gases are considered to be emissions; many environmentalists consider traditional, cheaper clean coal technology to be "greenwashing" because it is refered to as "zero-emissions" even though there are carbon emissions. [edit] Truly Clean CoalTruly clean coal technology, in which greenhouse emissions are significantly reduced, has not yet been developed in a way that makes it remotely cost effective. Though there are technologies that can sequester carbon emissions in compounds or geological reserves, these technologies are expensive enough that nuclear technology would be much more cost-effective. In the current environmental, political, and economic climate, however, there is huge demand for the refinement of carbon-free coal. Increasing fear of climate change, international accords like the Kyoto Protocol, and rapid economic expansion coupled with environmental degradation in countries like China and India may combine the three forces to push the development of cost-effective and truly clean coal technology. If not, then coal could be on its last legs as renewable, clean energy sources are also in the process of being refined. [edit] Energy LegislationBecause of the nature of coal power, as well as the nature of coal harvesting, government regulations could play a large part in pushing forward the development and implementation of truly clean coal technology. Examples of national and international legislation include
Because of coal's powerfully negative environmental image and the rise of climate change as a hot-button environmental issue, the future of coal power has major political implications. From mandatory emissions caps to carbon trading markets to subsidies of alternative, clean, and renewable energy sources, these legislative regulations are putting pressure on coal by forcing companies to limit coal power production or by making coal expensive relative to other power sources. Traditional clean coal technology is essentially an attempt to regain public support; the fact that burning coal will always release greenhouse gases keeps traditional clean coal from being a truly environmentally viable form of energy (at least until carbon sequestration techniques are perfected), but such technologies are being touted by coal companies as the answer to all their problems nonetheless. With major political support (a plank of Barack Obama's presidential platform is the support of clean coal), clean coal technology in any form has the potential to be driven forward by the government, restoring the coal industry's image in the process.
Categories: Energy | Policy | Green Issues | Mature |
The Shelf
|