Global Warming And Its Effect On Earth s Surface, Oceans,...

Global warming is the gradual increase of temperature in Earth’s surface, oceans, and atmosphere. Some people may say that global warming is just a theory that has not been proven scientifically; however, I do believe that global warming is happening and that there is strong evidence about this occurrence. Such evidence includes the increase of carbon dioxide, the rising of sea level, the increase of acid in the ocean, and clearly, the changes in global climate. In fact, mostly all sorts of human activities cause these changes. Ninety-seven percent of climate scientists agree that human actions have changed the Earth’s atmosphere in the past two centuries (Climate.nasa.gov). The warming of Earth’s surface begins with the greenhouse effect, which is the leading cause of global warming. The greenhouse effect is the exchange of incoming and outgoing energy emission that warms the Earth. A great example of this phenomenon given by Marc Lallanila, writer of â€Å"What is the Greenhouse Effect?† is when a car parked in a cold, sunny day. The solar radiation that is coming in warms up the inside of the car, but the solar energy that is going out is trapped inside the car’s closed windows. Greenhouse gases are the gases in the atmosphere that absorb radiation, such as water vapor, carbon dioxide, methane, and nitrous oxide. Out of all these greenhouse gases, carbon dioxide is the primary gas produced due to the combustion of fossil fuels from electricity, transportation, and industrialShow MoreRelatedGreen House Effect On Earth1617 Words   |  7 PagesGreen House Effect: When sunlight reaches Earth s surface some is absorbed and warms the earth and most of the rest is radiated back to the atmosphere at a longer wavelength than the sun light. Some of these longer wavelengths are absorbed by greenhouse gases in the atmosphere before they are lost to space. The absorption of this long wave radiant energy warms the atmosphere. These greenhouse gases act like a mirror and reflect back to the Earth some of the heat energy which would otherwise be lostRead MoreGlobal Warming And Its Effects On The Earth927 Words   |  4 PagesGlobal-Warming Mother Earth is burning as we speak; humanity has killed our precious Earth. Global-warming is a vicious killer that was created by the humans on this Earth, and there s no way to cure it. We,as humans, have the power to cleanse the Earth, but instead we destroy it. Heat is absorded by carbon dixide and greenhouse gases. A greenhouse gas absorb thermal radiation emmited by the Earth s surface. As the sun s energy reaches the Earth’s surface some of it goes back out into spaceRead MoreGlobal Warming And Its Effects928 Words   |  4 PagesGlobal-Warming Mother Earth is burning as we speak; humanity has killed our precious Earth. Global-warming is a vicious killer that was created by the humans on this Earth, and there s no way to cure it. We, as humans, have the power to cleanse the Earth, but instead we destroy it. Heat is absorbed by carbon dioxide and greenhouse gases. A greenhouse gas absorb thermal radiation emitted by the Earth s surface. As the sun s energy reaches the Earth’s surface some of it goes back out into spaceRead MoreGlobal Warming : The Green House Effect1030 Words   |  5 PagesGlobal warming can also be known as the green house effect. It is a topic that has received a lot of attention in recent years yet our climate change is not a recent problem. Every year almost 7 billion tons of carbon dioxide is released into the atmosphere by human activity. Global warming is in the earth s upper atmosphere directly caused by human burning of fossil, fuels, industrial, farming,coal,radiation and deforestation. Ev ery year we see natural disasters that are extremely powerful. IfRead MoreHuman Activity Over The Last Century1208 Words   |  5 PagesHuman activity over the last century have caused major detrimental changes to the climate with carbon dioxide and other greenhouse gases being emitted into the atmosphere. These changes to the worlds ecosystems and could involve key human health problems. There is worldwide scientific consensus and proof that climate change is real, evidence proves there has been 7 cycles of glacial advance and retreat, since the beginning of the modern climate 650,000 years ago. The evidence of our changing climateRead MoreThe Threat Of Global Warming Essay1459 Words   |  6 Pagesbecoming warmer. When scientists add up all the heat warming the land, oceans, atmosphere, ice melting, earth is accumulating heat equivalent to four Hiroshima bombs worth of heat per second. Global warming is a serious issue faced by our world as there has been a significant increase in temperature over the years. But the article published by Dr. Mark Sircus on â€Å"Global Warming -largest science scandal in the history† refutes the theory of global warming. Dr. Sircus states that there is no linkage betweenRead MoreEnvironmental Ethics And Environmental History1379 Words   |  6 Pagesmeans that the reason nature exists is to meet our needs and the world s ever increasing increasing wants Stewardship worldview, this view states that we have a responsibility to take care of the earth and that we should use earth s resources for our benefit Environmental wisdom worldview, this view is for the belief that everyone completely depends on nature and that earth is here for every species, man should care for his earth Environmental justice-movement,this view’s issues revolve around equalityRead MoreThe Effects Of Global Warming On The World1267 Words   |  6 Pages Over the course of the years global warming has become a threatening issue that scientists and the government have been cognizant about. Global warming is the term used to describe a gradual increase in the average temperature of the Earth s atmosphere and its oceans, a change that is believed to be permanently changing the Earth’s climate. The earth periodically warms up and cools down. The Earth is currently going through a warming trend that coincides with the industrial revolution. ThisRead MoreGlobal Warming And Its Effects On Communities, Health, And The Climate988 Words   |  4 Pagesoccurring on planet Earth that is causing significant and harmful effects on communities, health, and the climate. It is Global Warming which can be defined as the constant heating of Earth s surface, oceans and atmosphere. In order to understand global warming, the most vital concept is the greenhouse effect and how it plays an important part in its development. Water vapor and certain g ases in the atmosphere absorb infrared radiation, causing what is called the greenhouse effect. This occurs whenRead MoreThe Disastrous Effects of Global Warming1118 Words   |  5 PagesMile-high domes of ice tied up so much fresh water that the oceans were some 100 meters lower than today. On a global basis, the world warmed up some five degrees Celsius from the beginning of the ice age’s rapid retreat over 15,000 years ago (39). The large and rapid climatic change affected the atmosphere, temperature, and water cycles. Research shows that planet Earth is in fact still warming. Senator Al Gore says this about global warming: â€Å"You see that pale, blue dot? That’s us. Everything that

Exercise Exercise And Exercise - 1721 Words

Many times when people think of exercise it is thought of in an incredibly broad sense. There is no second thought given to whether the workouts are high or low pace, to what the level of exertion is, or the fluctuation of oxygen levels. With this being said, there are others that think of exercise in a more detailed way that live and breathe it, and are educated in the way the details of exercise works. This detailed broken down way of thinking breaks down breathing, heart rate, recovery, and many other details. When breathing and oxygen are thought of, these types of exercise are classified into aerobic and anaerobic exercise. Aerobic exercise – meaning with oxygen, is an exercise that raises the body’s need for oxygen causing a higher†¦show more content†¦When breathing during aerobic exercise the body releases carbon dioxide. As a result, during this type of exercise the body is able to expel the carbon dioxide and breathe in oxygen, resulting in the body n ot building up lactic acid in the muscles. Aerobic exercise has been shown (not proven) to be influential in extending life. However, this is contingent on how much exercise is done and for how long each day (Bushell, 2009). Aerobic exercise is easier to do anywhere. There are many different exercises that are able to be done at home and outside without the use of equipment, it is more convenient and allows for a better workout when there is not a requirement to go somewhere for a workout. Anaerobic exercise is defined as â€Å"without oxygen† (Merrium-Webster, 2015). This type of exercise is only tolerable by the body for a few minutes at a time and can take up to four minutes to recover. When exercising anaerobically the body is overexerting and using all of its energy at once. This causes a slower recovery and a longer healing time. The body is able to produce anaerobic exercise in bursts, but the energy consumed is more than the body is able to allow (Gastin, 2001). This is due to the intense nature of the workout causing these types of workouts to be shorter in total duration. When participating in anaerobic exercise lactic acid builds

Pass/Fail Grading System free essay sample

Traditional Letter Grading Vs. Pass/Fail Grading System Every student has had to deal with the traditional letter grading system at some point throughout their educational career. While I do think that the pass/fail grading system would help students be less stressed in school, I do not think that it is the proper way to grade. Letter grading keeps competition in the classroom, not always among all the students but also among oneself; it rewards the students for their hard work and dedication, and it could help them get the career they want later in life. While I do think that many students could benefit from a pass/fail grading system, I think that taking away letter grades at a high school or college would do nothing but hurt the students. Letter grades are the measurement of the students’ performance and students who actually try their best to do the work and succeed, would not want to be placed in a class with students receiving the same grade as them who are only doing enough work to get by. We will write a custom essay sample on Pass/Fail Grading System or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Many of the students who are getting the good grades in school take pride in their work and make sure they are doing their best to get the grades they get. The only good way to look at taking away the letter grading system is for students who aren’t trying their hardest to succeed, or ones that are trying their best but aren’t quite getting it. But just because the standards are lowered and these students are passing just like the best students in the class, it doesn’t mean they fully understand the material and these students wouldn’t get offered much help because teachers would see them as passing, not just barely passing. Grades are a great way to get students motivated. If students knew they could pass a class by just doing the minimum and get the same grade as everyone else, they wouldn’t try as hard. I know if it were me, I wouldn’t put a ton of hard work into something just to get the same grade as someone who is only doing half the work that I am. The letter grading system forces the students to do their best and worry about the grades they get at the end of the semester. Students attend class, do homework and study for tests to receive good grades but if those grades are taken away, students won’t be as worried to do those things; they’d do only as much as they would have to, to pass. Competition in the classroom is also a great way to keep students motivated. It keeps them focused and encourages them to strive to do better. If a student gets a C or B on a test, the next time they’ll study harder to try to get that A. Students lways want to better their grades but if they only get a grade of ‘pass,’ there’s not much there to motivate them to get anything better. Sometimes there’s also competition amongst the students which keep them striving to do better. For example, I took an AP psychology class in high school and I sat next to one of my friends, after every test we would compare our grades to see who scored higher. It didn’t matter which of us scored higher, the next test we would both study e ven harder and longer to try and get the highest grade. Both of us passed each test, but it was just our competitiveness that made us strive to achieve our goal. With a pass/fail grading system you can’t really do that. When someone applies for a job, the employer may base each applicant on their academics to see who is better fit for the job, but if transcripts only say whether the person passed or failed, the employer will have a much harder time deciding who is better suited for the job and may decide on something totally different than how well one did in school. Grades can tell us everything, or they can tell us nothing. The pass/fail grading system wouldn’t tell us our real grade, it would tell us only whether we had passed or failed. Students wouldn’t try as hard and as a result, they wouldn’t fully learn the material. The traditional letter grading system lets the students know where they stand. It lets them know if they should push themselves a little harder to achieve their goal of getting that A. With letter grading, it can also show students that they can achieve their goals if they push themselves, unlike with pass/fail grading; it only pushes students to get the minimum of passing.