Energy has always been an essential resource to the human race. During simpler times all the energy required for living was obtained through food and fire. However, as humans developed and created new technologies a different type of energy was required. Thus, the first coal powered machines were created such as the steam engine. Over time technology kept improving and became more complex; as a result, the energy needed to power the world increased, but little changed in how it was obtained.
The way energy is produced to power the lives on earth has, for the most part, gone unchanged; burning coal. According to the U.S. Energy Information Administration, coal, or fossil fuels as it is regularly called, supplied approximately 75% of the energy used in the United States in 2014 ("10. Renewable Energy" 150). Until recently this was not considered an issue because fossil fuels provided sufficient energy with no noticeable downside. However, with the realization that fossil fuels will someday run out and evidence of its contribution to climate change; a large majority of scientists believe fossil fuels cannot remain the main contributor of energy for the future. The problem is so dire that Mark A. Delucchi, a research scientist at the University of California, and Mark Z. Jacobson, professor of environmental engineering at Stanford University, declared in an article for the Bulletin of the Atomic Scientists that “In order to avoid serious environmental and economic damages from
The U.S obtains more than 84% of its energy from fossil fuels including oil, coal and natural gas. This is because people rely on it to heat their homes, power industries, run vehicles, manufacturing, and provision of electricity. It is apparent that the country’s transportation industry highly depends on conventional petroleum oil, which is responsible for global warming, thus threatening economic opulence and national security. Apart from that, increasing consumption of fossil fuels have elevated health problems in the state, destroyed wild places, and polluted the environment. After conducting Environmental Impact Assessment, projections showed that the world energy consumption would increase by more than 56% between 2010 and 2040. However, fossil fuels will cater for more than 80% of the total energy used in 2040. Sadly, it will be a trajectory to alter the world’s climate, as well as, weaken the global security environment. Importantly, the rate at which the US relies on fossil fuels needs to reduce since it has adverse effects on the planet’s supplies. The society needs to realize that fossil fuels are nonrenewable, thus taking millions of years to form (Huebner, 2003). Notably, the country can reduce dependency on fossil fuels by practicing energy conservation and efficiency,
But so has population, which means per capita energy use is unchanged. And per capita GDP has risen substantially, so we are using 40 percent less energy per dollar output. Which is one reason there is no energy crisis…” (Will, par. 3). Will gives another example of a so called environmentally friendly decision when he says “…in 1996 President Clinton put 68 billion tons of America's cleanest-burning coal, located in Utah, off-limits for mining, ostensibly for environmental reasons…” (Will, par. 5). This, Will says, was really all about political and financial kickbacks “Now power companies must import clean-burning coal, some from mines owned by Indonesia's Lippo Group, the heavy contributor to Clinton, whose decision about Utah's coal vastly increased the value of Lippo's coal” (Will, par. 5). Will then gave us facts about how much energy is really out there waiting to be harnessed in our own backyard, “The government estimates that beneath the U.S. outer continental shelf, which the government owns, there are at least 46 billion barrels
Carbon emissions are changing the planet for the worse. Energy production (mostly coal) is producing a one third of the US 's global warming emissions. Renewable sources produce little to zero percent. The balance of coal and renewable energy in the U.S. needs to be evened out with renewable techniques. Statistics from the Union of Concerned Scientist’s “Benefits of Renewable Energy Use” show that most renewable resources emit less than one pound of CO2E/kWh. These have significantly less of a carbon footprint than coal, which emits 1.4 to 3.6 lbs. CO2E/kWh or natural gas, which emits .6 to 2 lbs. CO2E/kWh. This impressive difference of carbon emissions between renewable and fossil fuel is the key to caring for our environment. A 2009 USC study found that if 25 percent of the US 's
Arjun Makhijani, a prominent researcher for The Institute for Energy and Environmental Research, claims that today’s emission rate of carbon dioxide is about nine gigatons annually and that the Earth only has the capability to absorb 3 gigatons annually—thus a problem arises. Furthermore, Makhijani states that about 2/3rds of the carbon dioxide emissions are caused by the burning of fossil fuels such as coal and petroleum. With those shocking statistics in mind, fossil fuel’s emission of carbon dioxide is thought to be the leading cause of climate change—which is responsible for irreversible and catastrophic changes to the Earth. Yet, scientist had tremendous difficulty finding a safe, effective, and efficient form of energy supply that will met the great consumption rate. Many prominent scientist suggest that nuclear power is the most plausible explanation and solution to the fuel crisis. However, despite nuclear power having a exponentially lower emission rate, it presents its own hazards and threats—such as the Chernobyl and the Three Mile Island incidents. These accidents have many activists and politicians cautious about the prospect of using nuclear power as a complete alternative to fossil fuels—regardless nuclear plants are responsible for 11% of the energy supplied to the world annually (World Nuclear Association.) What many of the activist and politicians seem to overlook is that fossil fuels are an indefinite energy supply and will quite possible run out within
Our energy use has dramatically improved our lives , but this energy is derived mostly from fossil fuels and has resulted in environmental change , and depletion of fossil fuels (Shahriar 181 ). This leads to continuing military conflict . This resulted in developing and using alternate resources for the increasing energy demand.
As water power was too restricting, there was a rise in steam engines as a power source for running factories. This change came about because steam engines could be used at anytime, anyplace, and in any weather uncondition unlike water power. The steam engine moved from steam pressure that would then move a piston that rotates other gears to operate the machinery at more of a
The beginning of the industrial revolution in the eighteenth century led to an exponential increase in our demand for energy to satisfy the growing needs of manufacturing, transport, production of raw materials, healthcare, and agriculture. Simple tasks are taken for granted such as “powering-up” the plethora of devices and gadgets that we “cannot live without” – such as our smart phones and computers. Whilst all of these things are central to our very existence on the planet, our increased dependence on energy has essentially been met to date by the burning of non-renewable fossil fuels, such as brown and black coal.
The Industrial Revolution sparked a need for large sources of energy. Human and animal labor could not provide the power necessary to power industrial machinery, railroads, and ships. The steam engine and later the internal combustion engine provided the bulk of the energy required by the industrial age. Today most nations are still heavily reliant on energy that comes from combustion. Usually coal, petrolium, and natural gas are used. Some hydroelectric, wind power, and nuclear fission sources are used, but in the US they accounted for less than 20% of the total energy consumption in 1997 (1). Many experts are worried that natural resources such as coal and petrolium are being depleted faster than they are being replenished, which could
Energy is one of the main contributors to the success of today’s population (The Importance of Energy). It is fundamental to our lives. How we acquire our energy makes a huge difference
As a whole, the book is difficult to make cross-referential criticisms on the basis of its claims, seeing that it did not really make any substantial claims until the last 50 pages. Energy in World History succeeds as a collection of historical facts and data presented in clear and concise terminology and does not strive to be anything more. It will present a topic such as the evolution of pre-industrial energy technologies and then break this down into smaller sub-studies such as transportation, agriculture, and building. Each of these sub-sections, constituting 5-8 pages in this book, can and have warranted entire novels. The beauty of Smil 's book is as a compilation of these various sources into a
What is energy? Energy is the ability to do work, it is the “power that comes from the use of physical or chemical resources.” In your home energy can come in many forms such as heat, light, and even electricity. The problem is some of us, meaning people, in general, know little to anything about the word energy itself. When we think about energy, we think about the energy it takes to get up in the morning. Sometimes as students we do not notice how much, and when we use energy. We use energy in everyday life, and it is very important to understand that.
Coal and natural gas are the United States’ main fossil fuels used as energy sources. These fossil fuels both contain mixtures of hydrocarbons, which is a chemical compound of carbon and hydrogen (Olah, 2005). Currently, fossil fuels provide eighty-five percent of commercial energy, such as businesses, worldwide and this eighty-five percent does not even account for residential use. Imagine if the residential energy use was accounted for in that eighty-five percent (Davison, 2007). According to Goodell (2006), “Between 1950 and 2000, the world population increased by 140 percent and fossil fuel consumption increased by 400 percent. By 2030, the world’s demand for energy is expected to more than double,” with most of the electricity
In ancient times human muscles and animals were the primary source of energy. Man utilized this type of energy into his daily life activities by producing more work with least amount of human effort and time. So this form of energy was used in preparing weapons and other human controlled hearths to change the form of other metals for its use.
Many centuries ago people did not need much energy. Back then, people used the sun or burned wood and straw for heat. People used the wind force in sails or horses to go anywhere in the world and used animals to do the work humans could not do. Although, humans did use simple machines that could ground grain, pump water, and even utilize steam power. Steam engines transformed over time and by the 18th century the modern steam engine, fueled by coal, could do the job of a team of horses. Since steam engines were much more favorable compared to air and wind power, steam engines were used to power factories and coal was used to heat up buildings.
For years man has relied on energy in order to be successful in life. The industrial revolution relied on coal for the new inventions brought into the world. Life as has never been the same since then. However since that time, there has been little done to improve on energy efficiency and humans still primarily rely on fossil fuels for energy. For over a hundred years the Earth has become more polluted and dirtier than ever before. Now, with new, innovative technology there is an opportunity to change that and to rely on renewable, cleaner sources of energy. The main source of energy for the world should be alternative energy instead of energy from fossil fuels.