Joel Barnett Claudia Moura Pols 1 Dec 1, 2014 Light Pollution In 1994, an earthquake shook Los Angeles, knocking out its power and leaving its inhabitants stranded in darkness. In the hours that followed the blackout, many anxious residents called local emergency centers to report seeing a strange “giant, silvery cloud” in the dark sky. According to Terence Dickinson in his book Nightwatch: A Practical Guide to Viewing the Universe, some people even believed a “sudden brightening of the stars. . . had caused the quake.” It turns out that what the majority of Los Angeles was seeing for the first time was actually the Milky Way. In little over 100 years since Thomas Edison’s incandescent light bulb first illuminated a New York street, an …show more content…
Nocturnal animals or animals that breed nocturnally are also adversely affected by manmade light. When young sea turtles hatch, they generally emerge from their sandy beach-shore nests at night, which increases their odds of avoiding detection by predators. As soon as they are out of their nest, they find the brightest horizon, and rush towards it. A CBS news article points out, “That should be moonlight over the ocean. Instead, many end up racing in the opposite direction, towards the headlights of cars and illuminated porches of beachfront homes.” Unfortunately, these misguided turtles are quickly killed by shore birds or dehydration. For a species that has a one in 1000 chance of reaching adulthood, light pollution is playing a major role in eliminating their existence. Even if sea turtle survival or stargazing isn’t high on our priority list, light pollution should still concern us. As humans, we are dependent on visual cues, so illumination of our nightscapes seems comfortable and necessary. However, unnatural nighttime lighting affects our circadian rhythm, or 24 hour day/night pattern. According to a 2009 Environmental Health Perspective article on the dangers of light pollution, “Disruption of the circadian clock is linked to several medical disorders in humans, including depression, insomnia, cardiovascular
Pollution and trash build up in Los Angeles has been accumulating and worsening for many years. The homeless population in Los Angeles also has been at an all time high. In areas like Van Nuys, Reseda, Downtown, and many more, there needs to be more trash cans near homeless encampments and along with those, cameras, which will document and hopefully successfully pinpoint potential littering suspects. The trash is not only harmful and damaging to our community but also Earth as a whole. By setting up more trash cans of which the city would be in charge of, it would hopefully encourage those who do frequently litter to throw away their waste properly. Besides putting up cameras and implementing more trash cans we can also set up a plan to benefit both our homeless citizens and the environment of our cities. The homeless give service to their city by keeping it clean and in return they gain food and shelter.
Bogard starts building his argument from the very beginning of his article. He builds his argument fact by fact to give you multiple reasons to understand the need to reduce light pollution. He states that "the World Health Organization classifies working the night shift as a human carcinogen." Without darkness our bodies are unable to perform some of the daily functions that we need, such as sleep and melatonin production. Without these, we are more likely to develop disorders such as diabetes and depression.
The American Medical Association agrees with this claim, supporting “light pollution reduction efforts and glare reduction efforts at both the national and state levels”. The human body needs the darkness in order to produce melatonin, and melatonin is needed in order to keep certain cancers from forming. Besides providing melatonin, the dark is needed for sleep, if someone does not sleep enough they will have health concerns. Consequently less sleep is a gateway for diabetes, obesity, cardiovascular disease, and depression. People will begin to care more about the darkness because they need darker nights in
While Verlyn Klinkenborg has good authority on this topic he uses very little evidence that has been researched and proven. He only mentions two scientific studies. One talks about how light attracts animals and the other is a study that connects brightness in neighborhoods. Throughout the essay he gives what seems to be logical evidence that light pollution has a negative effect, but he is no scientist. The use of reliable scientific sources cited in the essay would have been better evidences. Klinkenborg could have supported his argument using sources.
“ Computer images of the United States at night… show that what was a very dark country as recently as the 1950s is now nearly covered with a blanket of light. “ Using this to make us really think about the beauty of nature and what we are missing. Bogard brings in our health to give us a view of different problems that could occur beside losing the beauty of darkness, “Already the World Health Organization classifies working the night shifts as a problem human carcinogen, and the American Medical Association has voiced its unanimous support for “light pollution reduction efforts and glare reduction efforts at both the national and state level.” Putting the reader on an edge as we see more problems appear throughout the
The green sea turtle occurs throughout tropical and subtropical oceans and is among the largest of the hard-shelled sea turtles growing to as much as 440 pounds and four feet in length. The breeding populations in Florida were listed as endangered in 1978 (43 FR 32800 32811, July 28, 1978) whereas all other populations were listed as threatened (NOAA 2015h). There is a proposal for identification of a North Atlantic green sea turtle distinct population that would be listed as threatened, continuing its current listing status near New York (80 FR 51763 51764, August 26, 2015). They are found in the shallow waters (except during migration) of shoals, bays, lagoons reefs, and inlets, often where submerged aquatic vegetation exists, from Maine south to Florida, and throughout the Gulf of Mexico and the Caribbean Sea (USFWS 2015n, 2015o; NOAA 2015e). Green sea turtles nests are not present in New York; however, they occasionally are found stranded on or near the shore (NYSDEC 2015ad). Breeding takes places in subtropical to tropical oceans every two, three, or four years between June and September, with peak nesting in June and July (NOAA 2015h; USFWS 2015u). Hatching usually occurs at night, and many green sea turtle hatchlings seek refuge and food in masses of floating sea plants (USFWS
Humans have heavily affected sea turtle mortality rates, but one may ask what the benefit of having a stable and healthy population of sea turtles is. Sea turtles hold many important roles in both terrestrial and marine ecosystems where they are found. Along coasts where sea turtles are found nesting, beaches have been seen to have an increase in organic matter, phosphorus, nitrogen, and lipids (Bouchard 2000). This matter left by the sea turtle is in the forms of unhatched eggs and eggshells, which are then brought into the food chain through decomposers, such as beetles, or sea turtle predators, such as crabs (Bouchard 2000).
The lighting causes many turtles to die by leading them away from the moon which can cause dehydration, getting run over, Etc. There are turtles being born each year and 100-300 turtles are dying each year due to the lighting on beaches. If the turtles are being affected by lighting on the beaches many things could happen. A few examples are that the turtles will soon be extinct and we soon will not be able to see their beauty. The other animal rates could go down also because some of the animals need to eat the turtles to survive. People should stop putting the lights near the beach now. It kills the loggerhead turtles each year and soon they will become extinct.
The San Francisco Earthquake written by Jack London is journal of his events throughout the devastating acts of God that hit San Francisco in 1906. (461-466)
California’s unique geography as a state makes it a very appealing place to call home. From the odd east to west transverse San Gabriel mountain ranges of the Los Angeles Basin, to the bumpy coastal ranges of the Bay Area, any person can find a compatible topographic terrain to their liking. California may seem to be the perfect place to live with its ideal climate and extensive geographic features. However, due to California’s location over the shifting continental plates, coupled with its enormous and also multiple faults, at any time this great state can fall victim to a seismic disaster. After examining evidence from both Rong-Gong Lin’s II Los Angeles Times article of April 18, 2016 and the NOVA videos Killer Quake ( 2006), Earthquake (2007), as well as Geologic Journey II – Episode 3 (The Pacific Rim: Americas) – Part 3 (San Francisco) and The Great San Francisco Earthquake (American Experience ~ 2005), one can take a comparative account of the three major earthquakes of California’s past. Although each earthquake was very devastating on is own; the Great Quake 0f 1906, the Loma Prieta quake of 1989, and the NorthRidge quake of 1994 each amounted to an extensive forfeiture of property and life. Each of these earthquakes created much suffering and loss. It is imperative for each citizen of this great state to understand the damage that a California quake can actually do and be prepared; for the threat of one always looms.
I left for work but had to walk, as no streetcars were running. I was
Light pollution is a comparatively unknown and yet relatively serious problem that is constantly growing. Because of the way most lights are designed they throw light not just down, where it's needed, but also up and to the sides. This causes unnecessary light to be cast that can disorient animals as well as throw off their normal routines.
Now, as most may know sea turtles are both marine and land animals depending on what stage of life they are in. Which means that they need to be able to go on land during certain stages of their lives. One of the main reasons why a sea turtle will go on to land is to lay their eggs. Within the last few years this has become harder and harder for the already endangered species. It
Sea turtle hatchlings are now having trouble finding their way to the sea because of all the lights from buildings that are built on the coast. They get disoriented when they are born and will wander in the wrong way away from the sea. This leads them to predators that live inland or will even cause the turtle to become dehydrated and die. Humans are also building coastal armoring that is blocking female turtles from reaching a suitable nesting habitat. This is a severe problem in Florida where they have many coastal rock elevations and sand bags. Where all this beach development is occurring thousands of sea turtles are trying to nest. Beach dredging is also having a direct effect on sea turtle's trying to nest. If the sand is too impacted or is drastically different from native beach sediment, the mother will have trouble creating the
Imagine a world of chaos. We see things like that all the time in movies, where zombies roam the earth and there are just those few main survivors left. The world is in ruins. If ocean life was to die out, there would be a collapse of civilization as a whole. Just like we see on TV, the world would become a place where no order exists. This would lead to human extinction. The ocean dies, we die along with it, and if sea turtles die, so does the ocean. In simple words, one could say that human life depends on sea turtles. In this speech I will be covering three topics. First, how a sea turtle’s diet benefits marine life and humans, second, how sea turtles provide homes and food for other species, and last, how sea turtles protect beaches from washing away.