How the Earth Has Changed DBE
Space: The Final Frontier. We have been trying to uncover the mysteries that shroud this great expanse and even our own Earth for as long as we have existed. Over 4 billion years ago, planet Earth formed and in the following eons, more and more evolutions have happened and subsequently more and more theoretical explanations have formed as to how they had occurred. Although we may not know the specifics of how Earth came to be, we do know the sequence of many happenings that took place. Knowing this will help us further our research in finding once and for all the true answer to the formation of Earth. Life on Earth, the sequence of certain events, and the various theories that have sprung up all either have helped to change Earth or to explain the Earth’s changes.
Earth is a very unique planet. It is currently the only planet in our solar system capable of sustaining life. It has liquid water, plate tectonics responsible for the movement of our continents, and an atmosphere that protects Earth’s inhabitants from the harsh rays of the sun. However, Earth was not spontaneously created this way. Over a course of millions of years Earth has changed and, oddly enough, the life that it hosts has had a huge impact in its development. Plants, for example, have helped to shape our planet in many ways, one way being physically. Rivers used to be very plain and shallow and were not complex at all, during the Cambrian period. According to new research, “The evolution of land plants, along with some help from mud, ultimately gave rivers the sinuous, narrow channels, islands, muddy floodplains and the species-rich corridors associated with modern rivers…” (How Plants Helped Make the Earth Unique 2). Fast-forward...
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... theories one has now become the unofficially accepted one. It states that, “strong evidence was obtained to support the idea, originally proposed by Luis Alvarez, that a global catastrophe, caused by the impact of an asteroid, comet or meteorite, was responsible” (The Age of Mammals 1). As evident, nothing in the science world is absolute, especially when it concerns the mysteries of Earth’s past.
Although we do not know much about Earth, science continues to prevail and it continues to make breakthroughs. These breakthroughs allow us to catch a glimpse of what Earth used to be like before humans inhabited it, even afterwards. As the years go on our methods improve and we are able to not only eliminate many theories and narrow it down but organize the events that happened. Once we know the order we get closer to uncovering the secrets that muddle Earth’s past.
The disaster theory, Gould claims, is an example of good science. It has testable evidence and has an impact on studies in other fields of science, it develops further and explains why the extinction of dinosaurs occurred simultaneously with other events. This theory suggests that a large comet hit the Earth sixty five million years ago, causing the cloud of dust to rise into the sky and to block sunlight. As a result, world temperatures went down significantly, the ice age bega...
The rest of this article spends time speculating through the advances in technology and the reanalyzation of old evidence to determine various cataclysmic events that happened millions of years ago. There are many sections in this article that discuss the methods used to determine the closet possible dates and the sequence in which they follow. There are also sections in this article which discuss methods used for the evidence of impact, eruption and how reading the environmental changes can help paleontologists determine conclusions and narrow the perspectives of paleontologists (scientists) and popular culture as a whole.
Man has believed, for most of his existence, that the earth was only a few thousand years old. But a new theory surfaced in the 19th century called "Uniformitarianism". This is the belief that nature can be explained by natural causes.
Generational conflicts, political strife, environmental regulations, stakeholders in big oil, and many more hurdles affect the push to fully sustainable economies around the world and even here in America. In a world where coal, oil, and natural gas are limited, countries are gobbling it all up as fast as they can before other poorer countries come on the grid. Even though America and other countries gobble up these resources the life of the people is still a struggle to meet basic needs. Sustainability is an intermingling of resource use and protection of the “quality of life”, it is met by using resources sparingly and by recycling or reducing the use of other non-renewable resources to provide for our immediate need, but also to conserve and protect the needs of the next generation and to improve the quality of all the lives to come.
Outer space has always intrigued the human mind. Ever since humans inhabited the Earth, they have always looked to the heavens. Ptolemy, who lived over two thousand years ago, dreamed of being with the stars. He said, “I know that I am mortal by nature, and ephemeral; but when I trace at my pleasure the windings to and fro of the heavenly bodies I no longer touch the earth with my feet: I stand in the presence of Zeus himself and take my fill of ambrosia” (Tyson). At that time, reaching the “final frontier” was not even remotely possible.
At the evolving planet exhibit you go through different parts of the exhibit to explain the origins of where we come from. The first part is “Early Earth” which is when earth was very unstable and dangerous, similar to other planets such as Mercury and Venus. During this time unlike other planets such as Jupiter who are dominated by CO2, hydrogen and helium. Earth’s atmosphere is dominated by Oxygen and N...
Earth was formed 4.8 billion years ago (3) . It became the home for hazelnuts because it had an atmosphere and environment which allowed for life to prosper in later years. Earth’s surface was once composed of a single landmass, known as Pangaea (1).Over time it was broken up into seven different plates which were free to move as a result of movements in the hot, semi-liquid magma beneath the...
Climate change is evidenced through shifts in the weather patterns such as winds, humidity and temperatures over certain durations. Natural climate changes occur less frequently and they are triggered by factors related geographical aspects as well as solar radiation. The earth’s movement on the orbit triggers changes in climate causing some areas to have higher temperatures than usual while others are significantly cold depending on the position of the earth on the orbit. The heat form the sun causes changes on the stratospheric ozone and it increases the amount of greenhouse gases. Heat from the oceanic crust also contributes to warming as a result of episodic hydrothermal venting (Liao & Sandeberg, 2012). Volcanic activity also causes a release of certain elements that may block the sun and also contribute to increase greenhouse gases in the atmosphere.
Global warming and climate change have been frequent topics of discussion over the past several years. Although people tend to focus on the politics, it is time to look past the media aspects of it and into the cold hard facts of what our Earth is currently experiencing, and what caused it in the first place. The cause of climate change includes natural causes, but human causes are what is generating such a rapid global change. It’s time that the ways in which humanity affects the Earth’s climate, how scientists record and measure the climate change, and what can be done in everyday life to slow it down and/or stop global warming, are recognized.
Climate and Weather are both conditions of our atmosphere. Weather is a condition over short period of time, the degrees, if it’s raining, snowing, windy, etc. and climate is over long period of time, if you live in a more tropical place it would be more wet, humid, and hot. Climate is basically what the weather usually is the normal conditions in a place, a longer term of the average weather. Depending on where you live will determine what the climate is there and what kind of weather you will usually have and now sense there’s global warming and the colder places are getting warmer, warmer places are getting a blast of cold and polar ice caps are melting. So now It’s probably different climate and weather for many, many places than it was just four or five years ago. For examples If you live down south near the equator where it’s hot, like in Tampa, Florida your climate is humid and hot most the year and temperatures in the high 80’s and high 90’s. But if you live somewhere more up north closer to the north pole, like in Manchester, England it’s usually cold and raining most the year with temperatures of high 40’s and mid 60’s.
Earth system refers to the earths interacting physical, biological, and chemical processes. The system consists of land, oceans, atmosphere and poles. The earth system has four spheres, including the geosphere, the hydrosphere, the atmosphere, and the biosphere. The geosphere refers to the solid parts of the earth system, including earth’s rocky crust, mantle, and the metallic core. Within the geosphere is the lithosphere, which only refers to the uppermost layers of solid earth. The uppermost layers of solid earth are the oceanic and continental crust rocks. Just below the crust is the mantle, which is composed mostly of magnesium and iron silicate minerals. The mantle accounts for about 2/3 of the
Climate change refers to a change in global or regional climate patterns. Scientists agree that climate change is already beginning to transform life on Earth. The recent rise in global temperatures has brought changes in the weather and the climate. Many places globally have seen changes in rainfall and weather patterns. We may not like it but climate change is one of the most important issues that have effects in many parts in our daily lives. If climate change isn’t slowed down it will have a significant impact on global temperature, sea levels, human diseases, and wildlife.
In the statistical distribution of weather condition and its perfect pattern in an amount of time ranging from decades to centuries to millions of years, a substantial, long-lasting and drastic change is largely known as Climate change. It may be a change in more or fewer extreme weather events or in the distribution of weather more or less the average conditions or in average weather conditions. With the usage of theoretical models and observations methods, scientists, experts and specialists in this particular field actively works in order to perfectly understand past and future climate under certain situation and circumstances.
The environment around us gives us the habitat to live, is a condition for our existence and development so that protecting environment which is one of today’s most serious issues means protecting our lives. But almost every day we hear a new problem badly affecting the environment. The list of the new difficulties seems to be endless. We are all aware of these concerns and can admit that we caused them. Now, environmental protection is not the work of a single individual as it is the responsibility of the whole community, of every single person exists on this planet. The measures range from each citizen to the government.
Space has always been a pivotal and utmost important subject for many years. In the past, scientists have made monumental advances in this field such as sending people into orbit and landing a man on the moon. Of course, this has only barely been explored and we still have a lot more to see of the ever-vast outer space. One of the most significant topics of all of science has only been touched and there’s still more to come.