Friday, February 15, 2013

SCI275 Discussion Questions



Week 1 DQ1

Post a response in your own words defining environmental sustainability. Then, list three behaviors of your own that threaten environmental sustainability. How could you change those behaviors to reduce threats to environmental sustainability?

Environmental sustainability is the capability to continually practice habits and procedures that will maintain or improve the quality of the environment. Three of my behaviors that threaten environmental sustainability are: I do not recycle to the best of my ability, I usually have every light on in the house longer than I need to, and I still accept styrofoam food containers. In order to recycle more I need to find where the facilities are that except the recyclables I use in order to turn them in. I can remember to turn off lights that I am not using or do not need. There are a few things I could do about the styrofoam food containers, I could petition the cafeteria at work to stop using these containers or I could bring my own from home.

DQ2


  Review Ch. 2. Post a reflection on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position.

My view of the world, this is not a concept I actually have thought about. After reading the two extreme world views I would have to say I am definitely well into the deep ecology worldview. I believe all life forms have value whether we as humans recognize it. I also believe that even though we are more intelligent does not mean we have the right to abuse the earth for our own betterment. I believe that if we as humans do not change soon and radically there may be no Earth left for our children or grandchildren to live in. We are headed for a severe natural disaster that will shake the entire Earth and very few people in this world recognize it and even few are willing to do anything about it. How many people out there throw trash on the ground, or walk past trash on the ground and say to ourselves, “its not my problem”. But they are wrong, it is their problem, it is my problem, and your problem and everyone’s problem. And this is only one example of how we abuse our Earth. This is a living, breathing environment and every push or pull we do has an effect for good or bad. Each of us needs to recognize that something is wrong and what we do to help the destruction and alter our actions for the betterment of this Earth as a whole. I guess this would be my worldview, inadvertently told while thinking about what I believe.
I would say this is pretty close to the deep ecology worldview. I envision a world where every person on the planet recycled, did not use non recyclable materials, had medical herbs more readily available and widely used, had jobs that were satisfying to themselves and helped in some way the world and/or their neighbors, never went hungry, parents had more time to spend with their children, school was fun and educational, and no individual every did without anything they need. 

Week 3 DQ 1

Review Ch. 5, The Flow of Energy Through Ecosystems. Then, complete Appendix C. Post your response to the following:

Identify the fruit or vegetable you selected and relate the second law of thermodynamics to the changes in energy observed in Appendix C. How did the amount of energy gained compare to the amount of energy lost as heat at the second through fourth trophic levels?

Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient?


The fruit I researched was the blueberry. According to the second law of thermodynamics as a primary consumer the total energy available is 84. The energy gained, ten percent, is 8.4, and the total lost, ninety percent, is 75.6. As a secondary consumer, which humans are when we eat meat from an animal that ate the blueberries, the energy available is 8.4. The total gained is .84 and energy lost is 7.56. As a secondary consumer we can only use one percent of the total energy the producer originally had available. The other ninety-nine percent is lost and is unusable by any energy user.
Confronted with this data I would definitely say it would be more beneficial as a consumer to be the primary consumer instead of the secondary consumer. We all hear that we should eat more fruits and vegetables because they are healthier for you. It has never been explained quite this way before and is a lot easier to see the importance of consuming more fruits and vegetables and less meat in our diets. 

DQ2

Use the Ch. 6 Biome animation located under the Week Three Materials section of your student Web page to identify which biome you live in by clicking on the colored area of your general location. Post a brief description of your biome by responding to the following:

Provide a one-sentence description of typical precipitation and temperature for summer and winter. Use terms such as cool, cold, warm, hot, dry, and wet.


The area of the world where I live is in the temperate forest biome, we usually have hot, dry summers and cold, wet winters.
Week 5 DQ 1

na3.     Discussion Questions

·         Go to the Emissions Calculator Web site at http://airhead.cnt.org/Calculator/?sid=a743a150a5f5ff4c72817e723b7c8c14. Fill out the survey to the best of your knowledge to calculate the total pounds of air pollution your household emits. 
Address the following: What was your highest contributor? What can you do to lower your total? What is your greatest challenge in lowering your total? When you review other students’ posts, suggest how they might control air emissions for their situations.
After using the emissions calculator, my highest contributor to air pollution was our SUV. We have a 93 Jimmy that is needed to get me to and from work and the kids to and from school. My boyfriend usually goes out to friends at night and sometimes that can be a lot of miles in a day. We go through about ten dollars of gas a day with all of our running around. In a perfect world, one thing that could be done to lower our total is to reduce the need for the car by walking or biking more. 
The biggest challenge in lowering this is the temperature during the winter. Today temperature stayed in the single digits with periods of negative degrees, with wind chill even lower. Sub zero temperatures make it hard to walk or bike when we need to go somewhere.
This graph-your emissions profile-measures the pollution you created over the course of a month. You emitted 1443 pounds of air pollution in December.*
Say what? 1443 pounds is a lot of chocolate, but is it a lot of pollution? You can judge by comparing yourself with the second bar on the graph, which represents the emissions profile for an average American--1,654 pounds. Many would argue that just one pound of pollution is too much, but we live in an imperfect and complicated world, so set your own goals for where you would like to be on this graph tomorrow or next year.
Your biggest source of emissions in December came from the category: Driving. We have provided some suggestions for how to cut emissions in this area. Some of the changes we suggest are easier than others, but we hope they all help you imagine ways that you can fit emissions reductions into your life and better prioritize your emissions reduction actions. If you only had time to cut your emissions in one area, what should it be?
Your emissions profile tells you how much pollution results from your lifestyle; our product search tool helps you easily improve your profile by providing emissions data on a variety of common household products.
And as a registered AirHead user, you can come back every month and re-calculate your emissions to track your progress. If your emissions seem uncharacteristically high this month-because you took a plane trip or because, say, natural gas prices are unreasonably high-check back again for the satisfaction of seeing your profile improve. We're not interested in artificially inflating your profile; browbeating isn't really our style.

DQ2

·         Review the variety of indoor pollutant hazards posted on the Environmental Protection Agency (EPA) Web site at http://www.epa.gov/iaq/pubs/insidest.html#Refguide.

Address the following: Describe at least three potential indoor air quality (IAQ) hazards in your home. What are the possible health impacts of each hazard? Do you believe your health is at risk based on your exposure to the three IAQ hazards? Why or why not? What can you do to reduce exposure to the hazard?
The number one most potential indoor air quality hazard is cigarette smoke. Cigarette smoke can cause eye, nose, and throat irritation, headaches, lung cancer or heart disease. A second potential hazard would be Nitrogen Dioxide that can be found in tobacco smoke and will have all the same health hazards as environmental smoke. A third potential hazard could be a biological. My youngest daughter still wets her bed. This can cause a few potential health hazards due to breathing in affected bedding. These effects can be eye, nose, and throat irritations, shortness of breath, dizziness, fever or digestive problems.
Our health is at risk from the cigarette smoke in the house since it has two potential health hazards and is the most prominent air hazard in the house. To reduce exposure we can quit smoking or at least moving any smoking outdoors. An air filter can also cut down on potential air hazards, along with opening windows for ventilation.
Week 7 DQ 1

·         View the Don’t Say Goodbye VLR located under the Week Seven Materials section of your student Web page.

Address the following: Identify a viewpoint given in the video that highlights the importance of biodiversity. Do you believe that every species is connected to one another as expressed in the video? Why or why not?
The viewpoint expressed in the video is that all life is connected, no matter how big or small. When one species goes extinct it threatens the life of everything else on Earth. This is a viewpoint I share, I believe that all life needs all other life. This planet evolved, it weeded out the bad stuff and nurtured the good stuff. The circle of life has worked for millions of years. Plants grow up from the ground, they feed off the ground, animals eat the plants, and some other animals. When animals die they decompose back into the ground and fed the plants. If we take one item out of that list the whole process breaks down. Not to mention the numerous medicines and such we have discovered in places previously thought of as nothing good can come from.
DQ 2

·         Choose one of the following terrestrial resource challenges: loss of agricultural land or reducing solid waste.

Address the following: What are the challenges of managing your chosen terrestrial resource issue? What human activities contribute to the problem?

The terrestrial resource challenge I choose is the loss of agricultural land. There are two major challenges to managing loss of agricultural land. One challenge would be overpopulation. With more people needing more space to live, eliminates land that could be used for agriculture. Another challenge would be erosion that loses precious topsoil. Topsoil is the most fertile part of the earth to grow healthy crops. Without the topsoil it is harder to crow the fruits and vegetables that are increasingly necessary to feed this ever growing population.
Week 9 Capstone DQ

1.     Capstone Discussion Question

·         Post your response to the following: If you were an environmental researcher and were given funding to assist with one environmental issue, which of the following topics would you choose to spend your funds on?

o    Human population
o    Atmospheric pollution
o    Water resources
o    Terrestrial resources
o    Energy conservation

·         What influenced your choice? What would the ultimate goal of your research be?
If I was given funding to assist on the environmental issue of my choice, I would definitely chose energy conservation. Energy conservation could save the climate and save money in every household. These are only two reasons I choose this issue. Saving the environment is a very important issue, and energy conservation could go a long way in making the environment better. The ultimate goal of my research would be to find and develop a universal energy source that would not only heal the environment but also improve the lives of every individual on this planet.





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