Archive for April, 2010
Antarctic Peninsula Climate – A Change in Krill Ecosystem
Antarctic Peninsula Climate – A Change in Krill Ecosystem
Antarctic Peninsula has been experiencing warming trends for over 40 years with an increase of 2-3 C, thus correlating with lower sea ice conditions in the Amundsen Sea and Bellinghausen Sea. Warming temperatures around the Antarctic Peninsula is changing the dynamics of the ecosystem. The rise in atmospheric temperature is causing increasing in melting of freshwater glaciers and ice shelves. Fresh water emerging into the sea counteracts the salinity within a regional area. Changes identified are;
• Decrease in sea water salinity up to 60 miles offshore
• Lower sea ice
• Decreased krill population
• Increased salp (open ocean tunicate that is reminiscent of a jelly-fish) population
• Increase in cryptophytes (single cell phytoplankton algae)
• Decrease in diatom phytoplankton
• Increase in carbon sequestering in deep ocean sinks
• Decrease in carbon availability in the food chain
The Antarctic Krill (Euphausia superba), a small shrimp like crustacean is the most important zooplankton species associated with the sea ice and plays a crucial role in the Antarctic food web. On a regional basis the amount of krill appear to be declining in the southern ocean. There are definitely lower trends in krill population during lower sea ice years around Antarctica. Part of the rational for the population decline is that ice algae rely on the sea ice for protection and growth. The krill need the sea ice in order to feed on the algae and phytoplankton.
Krill occur in groups or large swarms. They are less than 3 inches in size and feed primarily on phytoplankton and sea ice algae. Krill filter diatom phytoplankton out of the water column and scrape algae from the sea ice. Apart from frequenting the sea ice to feed, krill in particular juveniles, seek protection from predators in the many nooks and crannies formed by the deformed sea ice floes. Krill is the staple food of many fish, birds and mammals in the Southern Ocean. The biomass of Antarctic krill is considered to be larger than that of the earth’s human population.
Sea- ice algae utilizes atmospheric carbon dioxide for its energy source, the same as plants do on land. Krill diet of the sea-ice algae and phytoplankton is essential for converting the carbon for use in higher animals such as fish, birds, and whales. This carbon conversion is a very critical role in predatory nutrition. Additionally krill do eliminate some of the silica from the diatom shells and carbon in sticky balls that sinks nearly two miles into the deep ocean. These cold, deep waters are able to contain carbon dioxide and prevent the gas from rising to the surface, thus immobilizing carbon that is not passed into the food chain.
In recent years there have been increases in algae phytoplankton called cryptophytes. Mark Moline, California Polytechnic State University, states that the cryptophyte population correlates with warmer temperatures and lower salinity waters that are produced by the melting of the freshwater glacier. Cryptophytes measure around 2 mm, while other plankton in the Antarctic waters are much larger and measure 15 to 270 mm. Along with the increase in cryptophyte population an increase in salp, a pelagic tunicate, population has also occurred. There are differences between salps and krill. Salps feeding efficiency is capable of grazing on smaller food sources less than 4mm, whereas, the Antarctic Krill efficiency declines on any food less than 20 mm. The salps compete with krill for the phytoplankton and thus decrease the krill population. Additionally the salps feed on krill larvae, which also cause a decline in krill numbers.
The warming trend in the Antarctic Peninsula is showing a pattern of increasing cryptophytes over other phytoplankton and the increase in the salp. This influence is due to the low sea ice and the lowering of the salinity in the seawater. Salps and cryptophytes do better in the lower salinity, while the krill and other plankton are unable to tolerate the increased freshwater regime from the glacier ice melts. This selectivity gives preference to the salps as the dominant species while decreasing krill abundance. During lower sea ice seasons the density of krill declines while the salp population increases.
Carbon sequestering into the deep ocean from the algae and phytoplankton occur by both the salp and krill. Both species eliminate the atmospheric carbon received from the primary producing algae by producing fecal pellets by the salps and sticky balls by the krill, thereby, reducing the amount of carbon dioxide in the atmosphere. The salps though sequester more carbon into the cold deep ocean than the krill. However, the krill provides the most efficient pathway for carbon transfer up into the food chain. The cryptophyte dominated waters are less efficient in the food chain due to increased feeding by salps and the difficulty of the krill to utilize the cryptophytes as a food source. Migration patterns by penguins are changing, in part due to the changing krill population. Krill is a mainstay diet for penguins, and if the krill population changes, many other ecological changes occur with it.
Steve Bynum has worked at Palmer Station along the Antarctic Peninsula. He not only enjoyed the ecosystem along the Bellinghausen Sea but he has also witnessed the changing climate conditions.
Join Steve at http://www.climatechangenewsletters.com as we take a journey to discover the warming and cooling effects of our planet.
Journalism Development
Journalism Development
The impression created by the media over years has been held with mixed feelings. Whereas some media corporate world are known to have positively helped transform societies politically, economically, culturally and technologically; some other have only torn the world apart through negative reporting that supports aggressive confrontation, glorifying terror activities to make eye-catching headlines with selfishly money motive.
Similarly, the aggressive, corrupt and oppressive groups and individuals (religiously, politically or economically) have been glorified in the way that sustains situation that steadily extinct some societies.
Their content hardly provided or suggested solutions to alarm-triggering headlines. And much of the media activities have lacked an element of social responsibility that is tangible to give a voice to the voiceless and direct transformative opportunities to the poor, disabled and other disadvantaged groups
Journaling is a key communication tool. All organisms by nature communicate either verbally or non-verbally, yet attempting to make sense of whatever cues that are exchanged or evaluated.
True, we tend to be evaluative of one another whilst trying to figure out what intentions the other party could have towards you. The aim can be to help measure up the relationship that possibly could be developed, whether health or not.
Of course, in certain encounters some people could be threatened, suspicious, lack confidence, defensively withdraw or get on well in a healthy and rewarding relationship. This, indeed, is how communities can influence attitudes and behavior towards one another. That way, we could manage, control and direct directs and behavior. What a powerful tool a pen can be!
But success through journaling it self needs a period of training and practical experience, such that we can communicate to effectively make or unmake relationships or evolve life through the aspects of observing, reading and listening to words and actions of others and things.
The primary motivators to writing is the element of having an opinion yet unique. As part of research steps, one would be required to publish a final report or summarized article from the investigations, results and analyses carried out. Other researchers or students would want to review literature about statements pending investigation. From their successes, investigators either get awards or promotion.
Through practical experience, some people make careers out of their abilities and skills to communicate effectively as writers, as advertising agents, as interpreters and, as counselors or therapists.
Secondary employment too could be provided by journalism like driving, distribution, sale or retailing, legal advising et cetera. Eventually, those associated to it could become social icons or global media giants.
On the other hand, journaling could have important health benefits as stress reliever. By writing about one’s traumatic experience, sufferer could drop so much mental toxins off him or her.
And, at the same time it would help improve on analytical and problem-solving skills crucial in successful dealing with the ever emerging challenges encountered in day-to-day life.
From the natural or ecological sense, journaling or communication significantly help to connect different elements of the eco-system -through the principles of interconnectivity and interdependence.
And through media, we can help improve the dangerous global situations as nuclear conflicts, to make the world a better place for everyone to live in. But this would only be so if we formed a common objective in solidarity to it (non-violence) under the principle of conscious non-violence through tolerance and respect for divergent views.
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Waiswa Jacob |
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Residential Solid Waste Removal
Residential Solid Waste Removal
Residential solid trash, also called urban solid waste and municipal solid garbage, is refuse that normally comes from households. It is either in solid or semisolid form. There are five general categories of solid garbage that include:
1) Biodegradable waste: food and kitchen
2) Recyclable material: paper, glass, bottles, cans, metals, and certain plastics.
3) Stagnant rubbish : construction, dirt, rocks, and debris.
4) Assorted waste: clothing, plastics,etc.
5) Household hazardous waste: toxic such as paints, chemicals, light bulbs, spray cans, fertilizer and pesticide containers, batteries,etc.
Cities and towns generally contracts out solid garbage removal services. They will submit bids, assess each bid, and recommend a company. The rubbish company will bill the city or town. These companies are privately owned so if a person has a lot of waste after a project such as home renovation, they can hire a garbage removal company to remove the refuse.
Because of environmental regulations and a growing demand for a cleaner environment, junk companies are now performing the following services:
Recycling Programs: Curbside recycling is usually available to all residential customers. Customers will separate their recyclables according to paper and plastics for curbside pick up. Depending on the contract, this is normally done every two weeks. There can be special recycling programs such as Christmas tree recycling. The trees are then made into mulch. Other special programs a town or city can offer are Spring and Fall Clean Ups. They are designed to encourage residents to get rid of large amounts of garbage.
Hazardous Materials: Every year, millions of people accumulate such hazardous waste products as batteries, paints and stains, cleansers and polishes, motor oil, antifreeze, pesticides and herbicides,etc. These are dangerous to the environment, people, and animals. A rubbish removal service is trained to remove these products safely and responsibly. They will sort and categorize the hazardous materials before storing them in containment units. The contracted hazardous waste hauler packs the items in drums and sends them to hazardous rubbish incinerator or other treatment facility for proper disposal. Some materials, such as used motor oil, lead-acid batteries and antifreeze, are recycled.
Compost Services: Many cities and towns offer a compost service. They will provide compost bins for people to place such items as kitchen food garbage, newspaper, and other items that can be composted. A contracted junk removal company will pick up the compost left on residential curb sides.
Energy Recovery Plants: Plants that convert rubbish to energy are popping up all over the country. These plants burn garbage to heat water which produces steam in much the same way power plants burn coal, oil, natural gas, or wood. The steam can cause a turbine to produce electricity. Junk removal companies that have energy recovery plants in their area will make use of these services.
Special Handling waste Removal Services: Cities and towns will have a contracted service to remove large items such as tires, air conditioners, household appliances, and construction debris. Tires are sent to a recycling or recovery facility and household appliances, after chlorofluorocarbon gas removal, are taken to recycling stations.
Individual Contracted waste Removal Services: There are situations where a person has too much waste to be removed by a city or town removal service. They will then enlist the services of a private company. They are trained and certified to dispose of waste, compost, and recycle residential goods. For a nominal fee, a company will come to your home and remove all of your excess trash.
Because of growing environmental concerns, most companies dispose of waste in ways that will have the least environmental impact. You will feel good knowing that you are doing your part to protect and conserve the environment.
It is important for individuals to be mindful of what is in the trash. That way, the environment can be better protected. If you are looking for a junk removal and rubbish company located in the GTA please visit us at: Garbage Removal Toronto.
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Paper or Plastic?
Paper or Plastic?
Bags hold an important place in our lives. They are sometimes referred to as the best personal carriers. They are made of various stuffs like cotton, synthetic, leather and so. But when it comes to general usage like for shopping, the names of two types of bags viz. plastic made and paper made bags come to our intellect. Both are fine, but the question is, which one is the best suited to our requirements. Lets discuss the peculiarities related with the two.
You might be thinking that paper bags are not as durable as those made of plastic. Also, we see that the latter are more commonly used than the former one. But, do you know plastic is a stuff which is really hazardous to the environment. It takes thousands of year to decompose. If burnt, it emits poisonous gases which again pollutes the environment. If buried in the ground, it makes the soil infertile. If thrown in the sea, it pollutes the sea water and proves to be a threat for the life of the sea creatures. One can imagine, how hazardous is plastic to our planet.
This perilous nature of plastic had forced the governments of many cities of the world to put a ban on the use of poly-bags, which are a major source of plastic pollution. Few cities of the world in which these polythene carriers are either completely or partially banned include San Francisco, New York, Texas, Germany, Dhaka, China, Kenya and Ireland to name a few. Even the government of Delhi had issued guidelines against the use of polythene. However, later on the government changed its decision to completely ban the polythene, due to some reasons. Government suggested the manufacturers to set up the recycling units on the basis of “polluter pays principles”. But the government has not completely given up the plan to ban these polythene carriers, it is in the pipeline.
In this context, paper bags are the best option. No doubt, they are unconventional, but they are eco-friendly and easy to recycle. Nowadays, there are various types of paper made bags available in the market. They are not only good looking, but also have ample of space to carry goods and are quite durable. The handmade paper bags available nowadays are designed to suit specific requirements which include carrying gifts, carrying wine, shopping etc. There is a separate bag to serve each purpose. Although, multipurpose bags are also made from paper. They are proving to be the best substitute for plastic or polythene carriers in the modern context.
Now, as we have told you every significant fact related to plastic and paper bags, It’s upon you which one to choose. The hazardous and non-disposable polythene, or the environment friendly and elegant paper bags.
For more information on paper bags, paper baskets, miscellaneous paper products and other handicraft items, you may visit the following sites:
http://www.handmade-paper-products.com/
http://online-handicrafts-center.blogspot.com/
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VUE Green Line Hybrid Video Review
5 Easy Tips Conserving Water
Everyone is looking for ways to save money and help conserve our natural resources. There are many methods that are easy to start in your own homes, but one very simple and obvious way to save is by reducing water consumption. Here are just a few easy water saving tips that you can begin doing today.
1. Turn off running water in your sink or shower when you’re actually using the water. You can easily fill the sink with a enough water to wash your face, or fill a cup to brush your teeth. You may consider turning off the shower faucet while you’re washing your hair and then turn on again to rinse. Think about how much water is wasted. The same goes for dishes in the kitchen, turn off the water until you’re ready to rinse.
2. There are low-water consumption toilets available that use only a couple of gallons of water each time they are flushed. If you have a standard toilet, one green living tip you may consider is placing a plastic bottle filled with sand into your toilet tank. This little trick helps the tank fill up faster and use less water.
3. The laundry is another area where it is easy to waste water, and just as easy to save. Do your laundry in large loads rather than several smaller ones.
4. Limit your water waste outdoors. Don’t wash your car or driveway as often as you have been, and when you do, turn off the outside faucet until it’s time to rinse your car.
5. Look throughout your home, checking the faucets, toilets and pipes for any leaks. The very smallest of drips coming from a leaking pipe can eventually cost you a lot of money. Fix any leaks that you find.
If you are looking for simple ways to save the planet and save yourself money, start at home with these 5 easy steps. The planet and your wallet will thank you.
Learn more Green Living Tips and Ideas at http://greenlivingtipsandideas.com
Save the Planet – Sell Your Laptops
Save the Planet – Sell Your Laptops
We’re in this environmental mess because humans have exploited the earth for personal gain. However, you can sell your laptops, get some grocery money and still help the planet.
Steer clear of the attitude that everything is disposable after a few uses; do your part and extract the most out of your electronics. In carelessly tossing away our possessions, we are the reason that one more thing spends an eternity in a landfill. Electronics, including laptops, are one of the most significant sources of toxic heavy metals, including cadmium, lead and mercury, leaking into the soil, according to the Environmental Protection Agency.
Pollutants do no simply stay within the confines of the landfills, but are transported through waterways and through the air. When toxic metals travel upward during evaporation, these toxins contribute to acid rain, spreading the heavy metals for miles. Dr. Lorris G. Cockerham, former professor at University of Arkansas and researcher, wrote that build up of toxic heavy metals in animals damages their vital functions and hinders growth in plants, therefore irrevocably harms ecosystems.
The heavy metals seep into waterways and into our water sources. These heavy metals can enter our body through the ingestion of contaminated water, harming our bodies. Even a low concentration can harm us, according to James Girard, author and professor at the American University.
A solution? Sell your laptops to a recycler. When you sell your laptops, the laptop parts find new life with computer repair shops and wholesalers, avoiding certain doom in a landfill. Selling laptops is an easy process for the average time-constrained American worker. Search for “sell laptops” on the Internet. Locate a recycling company who will accept the laptops you are selling. Lastly, look for the V logo that signifies the company is verified organization, not a Nigerian scam. Many business will offer an instant quote on their Web site for the laptop you are selling. Input the specifications of your laptop, follow directions and you have check or a PayPal payment for your laptops.
Make sure you choose a reputable company to sell your laptops to. Some companies boast a “green” philosophy, but actually ship laptops to landfills in developing countries. We all have a part in this green earth and many of us have take steps to follow the mantra, “reduce, reuse and recycle.” Many people think about selling their cans, bottles and such and don’t think about their computers. Do your part, keep our Earth Green and sell your laptop.
Katy Marie is a freelance writer located in Reno, NV, who wants to keep the Earth beautiful. To find out more visit Cash For Laptops
Recycling – What it Really Is
Recycling – What it Really Is
Recycling has become the catch all phrase often used in place of the 3 R’s. But in its truest form recycling means taking one thing and changing it, usually chemically, into another. This is not to say that recycling is without value; it is certainly better than putting the items in the bin where they will end up in landfills and leach chemicals into our ground water. It is though to say that before you place anything in the recycle bag, first consider if you could reduce or re-use it, because everything that ends up in the recycling bag will have to be altered before it can be used again. Even then it is cleaner to produce goods from recyclables than from raw materials.
Here are just a few reasons to make certain that after you have reduced the amount of waste your create and re-used as many things as possible that your family puts as many things as possible into the recycling bins:
- Recycling one aluminium can saves enough energy to run a TV for three hours — or the equivalent of a half a gallon of gasoline.
- Each ton (2000 pounds) of recycled paper can save 17 trees, 380 gallons of oil, three cubic yards of landfill space, 4000 kilowatts of energy, and 7000 gallons of water. This represents a 64% energy savings, a 58% water savings, and 60 pounds less of air pollution!
- The 17 trees saved (above) can absorb a total of 250 pounds of carbon dioxide from the air each year. Burning that same ton of paper would create 1500 pounds of carbon dioxide.
- Recycling plastic saves twice as much energy as burning it in an incinerator.
- The energy saved from recycling one glass bottle can run a 100-watt light bulb for four hours. It also causes 20% less air pollution and 50% less water pollution than when a new bottle is made from raw materials.
- A modern glass bottle would take 4000 years or more to decompose — and even longer if it’s in the landfill.
Today is the actually a great day to talk about recycling. Each Thursday the council sends around men to collect our recyclables. The council gives us re-usable sacks, which we can use to collect all paper, cardboard, tin cans, aluminium, glass bottles and jars and plastic bottles. Unfortunately, they do not over recycling for other plastics. As I have been writing this series of blogs that has been one thing that I have been especially mindful of: how much plastic packaging manufacturers use that cannot be recycled and that it is estimated takes over 500 years to decompose in landfills.
But it is not just our plastics, glass, metals and paper that we recycle. Thanks to a wonderful programme through the Islington council, last year we were able to purchase a subsidized wormery to recycle our food waste into compost and liquid fertilizer for growing my own food. Actually, even though we may think that food thrown into the bin will degrade relatively quickly in the landfills, the biggest problem is the amount of methane, a dangerous green house gas, which it produces in that time. Methane is twenty times more potent than carbon dioxide and a major contribute to climate change. While my wormery cannot accommodate meat products I put all peels and unused fruits and vegetables into it. I should soon be harvesting my first patch of compost…just in time for my summer garden.
So how does my family do on recycling? Not too bad honestly. This week we had two bags of recyables and will only have two half full 13 gallon bin bags of other rubbish. Actually hubby and I got into a minor disagreement over the trash last night. One of the first rules of the 3R’s is to only throw out your garbage when the bag is full. In our case though, it had begun to smell. I am still looking for a solution…if anyone has ideas they would be greatly appreciated. But for a family of three adults and one pre-schoolers two large bags of recycling and one full 13 gallon bin bag in a week is pretty good I think. I imagine that there are single people, who put more than one bag in the bin each week.
Terri O’Neale is the mother of six; ranging in age from 3 to 22. She has been both a working and stay-at-home mother at various times in her life. She was also a single mother for almost five years, before re-marrying the love of her life at the age of forty. Obviously, she has a life-time of training in raising a family on a tight budget. In addition to these real life experiences, she possesses a bachelors degree in health education and a minored in environmental management in her masters programme.
Terri feels strongly that this is one of the most challenging times in history for the family, but she also believes that families with the will and resolve to address the pressing issues of saving money, becoming greener, leading healthier lifestyles and spending more time with one another can endure these challenging times and come out victorious in the end.
Through Frugal Family articles, blogs, videos and social networking, she helps modern families rediscover some lost art forms such as cooking, sewing, and gardening. The goal is not to go back in time or become fanatical, but to help all families find simple and effective ways that fit into their lifestyle to make moderate changes with huge impacts. For more information, check out her blog http://frugalfam.wordpress.com/.
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