We often hear the words “global warming” and “climate change” on the news and in politics, but no one seems to explain what they really are and the major effects they are having on the world. We just know that they are “bad” and needs to be “stopped”. What really is climate change and how has it come to be such a major problem in today’s world?
Climate is usually defined as the "average weather" in a place. It includes patterns of temperature, precipitation (rain or snow), humidity, wind and seasons. Climate patterns play a fundamental role in shaping natural ecosystems, and the human economies and cultures that depend on them. But the climate we’ve come to expect is not what it used to be because the past is no longer a reliable predictor of the future. Our climate is rapidly changing with disruptive impacts, and that change is progressing faster than any seen in the last 2,000 years (ecy.wa.gov, 2017). Though the scientific evidence seems overwhelming in favor of climate change, there are those, for various reasons, who believe that climate change is a trick. This is disappointing, as the future of our planet is at stake, and the last thing we should do in this critical time is arguing whether or not our world is being destroyed. In order to enlighten those who believe climate change is not currently happening, I will present evidence that will show that climate change is real due to sea levels rising, frequent hurricanes and food and resource depletion. In turn, I will also answer the opposition.
There is a quote “Don’t blow it- good planets are hard to find”, which can be send out as a reminder to human beings in light of the current climate changes happening all around. Climate change is an ongoing and a slow process and it can be seen throughout the history of the earth from the Paleozoic era to the Ice age to the current day. In the past climate changed over millions of years and was due to natural phenomenon so the species had ample time to evolve and adjust to the change. But the recent change in earth’s atmosphere has been rapid. In the last two decades climate change has occurred exponentially due to human activity. Human beings through deforestation, increase emission of greenhouse gas and industrial development have caused a rapid climate change, endangering his own life and that of other species on the planet, and making it inhospitable for future generations.
Climate change has been active since the first days of Earth. Under definition climate change means “a long-term change in the earth's climate, especially a change due to an increase in the average atmospheric temperature.” (Dictionary). Climate change can be seen making an impact all over the world. There are many theories and beliefs as to why the climate is currently changing, but there is no hard evidence that makes the real cause of climate change clear. There are many possible causes to the changes in climate that we see, but none are known for sure. These possible causes include global warming, such as burning fossil fuels, and even solar related issues such as the position of earth and our sun. We know climate change is occurring because of unusual changes that are currently happening on our planet right in front of our eyes. Drought, polar ice caps melting, the extinction of animals, floods, and food and water shortages, are just a few of these abnormal changes. Majority of average day people do not take climate change seriously, they just don't see it as a grave issue. We should really start seeing it as one, or these brutal and possibly fatal surges of odd weather will continue to get worse.
Throughout history, human beings have always used the resources around them to survive and even thrive in the world. For instance, ancient marvels such as the pyramids of Gaza, the Great Wall of China, and the moai of Easter Island have been created without the use of modern technology leaving beautiful lasting effects without a substantial carbon footprint. However, in today’s first world, humans are using too much of the Earth’s resources and it is becoming detrimental to the sustainability of the planet to the point where the climates are radically changing. The result of these radical changes can be seen in the increase of natural catastrophes such as tsunamis, hurricanes, and monsoons. The debate on climate change and who is responsible
After listening to the recent republican debate, I couldn 't help but notice the time that was devoted to the topic of climate change. It was brought up but gets quickly pushed aside for other “serious” topics. After hearing the thoughtless discussion, I was asking myself the same questions. Is climate change worth discussing? Is it real? Does anyone care? Can we fix it? I always ask myself but I never change my viewpoint. It 's real, it is worth discussing, and everyone should care. This is a huge issue that doesn 't get talked about and when it is talked about, it gets overlooked. Whether or not we can fix it is up to the people. Every time I mention climate change to my friends it soon becomes a topic for the people who care. I 've
Interesting fact: 86 percent of American adults drive cars and 72 percent believe that people need to limit emitting greenhouse gases (Winke). Where is the connection between American thought and action regarding climate change?
Global climate change and its apparent effects have been the subject of much discussion for a number of years. It is often claimed that this change is too advanced and the damage caused by it is irreversible, meaning that any efforts by us to undo this are in vain. Although I agree that our planet has become unalterably changed, I don’t entirely concur that this change is now completely beyond repair.
It was lucky that my house that I lived in for my whole life was built upon a hill. What more, the tallest tree that I climb in our backyard faces west, so I have the opportunity to see the sunset almost every beautiful day. But today is different, because this is the last sunset I might be able to see in a very long time.
According to the American Meteorological Society, there is a 90 percent probability that global temperatures will rise by 3.5 to 7.4 degrees Celsius (6.3 to 13.3 degrees Fahrenheit) in less than one hundred years, with even greater increases over land and the poles. Such shifts in temperature could and will trigger widespread disasters in the form of rising sea levels, violent and volatile weather patterns, desertification, famine, water shortages, and other secondary effects including conflict. Therefore, avoiding the worst consequences of climate change will require large cuts in global greenhouse gas emissions. While it is futile denying that the industrial revolution happened in Europe and afterwards in the US and these two continents released much more greenhouse gases while the rest of the world was living a mainly agrarian life, they shouldn’t be the only ones to bear the costs of mitigation and adaption today.
Hydropower is taking the energy out of water flowing from a higher elevation to a lower one and converting it into electricity. Hydropower has been used as source for electricity for many years and is the leading renewable energy resource in America today. Hydropower is the most dependable and effective of all renewable power sources. “And today, about seven percent of all electricity is generated from hydropower” (DOE.org) The Tennessee Valley Authority is the nation’s largest federal, public power company. TVA also has fossil fuel, nuclear, and hydropower plants. “TVA maintains 29 conventional hydroelectric dams throughout the Tennessee River System and one pumped-storage facility for the production of electricity.” (tva.gov) “Together these plants produced about 13.9 million megawatt hours of electricity in 2004, enough electricity to power nearly one million homes for a year.” (tvakids.com)
The United States is one of the largest producers of hydropower in the world, second only to China. Hydroelectric power is the largest source of renewable electricity in the world and in the United States.
Hydropower, the use of water to power machinery or produce electricity, provides the most renewable energy in the United States, and uses alternating current in most modern plants ("Hydropower…”). Hydropower relies on the water cycle and is a clean fuel source; it doesn’t pollute the environment like plants that burn fossil fuels. It is by far the most efficient way to generate electricity, being half the cost of using nuclear power, two-fifths the cost of using fossil fuels, and a quarter the cost of using natural gas ("Wind and Water…”). Also, hydropower is not subject to market fluctuations of embargos, and the average lifespan of a facility is 100 years. Hydropower also has many non-energy benefits such as water supply, flood control, navigation, irrigation, and recreation. However, it does face many environmental challenges such as impacts to aquatic habitats, aesthetic alterations of landscapes, changes to water quality, and interruptions of marine life ("Hydropower…”).
...earch needed for hydro-plants is minimal. Relative to other sources of renewable energy generation, hydro power is the least expensive renewable generation option (Figure 2). Hydro power also has a high efficiency (90 %)  and capacity factor ranging between 20-40 % (Figure 3). But the major advantage it possesses is its control over the produced electricity through the control of water flow (can be shut down and start up in a short time)  .