Archive for October, 2010
Green Technology
Sea Levels on Rise
It is no new scientific fact that there is a slow steady increase of temperature; we’ve been studying and recording changes for a few decades. For some reason people are only now starting to take notice of how desperate the situation is.
Due to the increased temperature, sea levels are on the rise. It now is easier for boats full of scientists to access the Northwest Passage for research due to the polar icecaps melting . Areas that were once almost unreachable are now becoming navigational and the search for precious gems, gold, and oil is on! There is no end to mans greed.It makes sense that when the sea levels rise the ground surfaces slowly disappear. We will lose our agriculture farmlands. There may not be enough food needed to sustain ourselves, let alone other countries that we already support. Many farmers will lose their farms and their lifestyle.
Should sea levels on the rise be a worry about freshwater? Our drinking water is not a luxury it is a necessity and is as important for people, plants, and animals. The possible damage to freshwater due to rising sea levels should be a major worry to all of us.
For hundreds of years polar bears have been the king of the Arctic ice and roamed over vast areas of icy tundra. But with the icecaps melting away, and the distance between ice flows becoming greater, many polar bears have drowned from exhaustion before reaching shore. It also makes hunting their primary source of food, the seal, more difficult. Dying of hunger is now a probable fate for many of them.
The total extinction of many of the world’s beloved land animals may be just around the bend due to rising sea levels.
Show some concern about the environment and save money at the same time by searching for eco friendly products from sites like http://www.EnergySavingProject.com.
The author is a specialist in environment, energy efficiency and renewable energy.
A Huge Birthday Party! Giving Our Planet a Big Presenet on Earth Day
A Huge Birthday Party! Giving Our Planet a Big Presenet on Earth Day
If you have a computer, imagine how you could make a difference!
How you say?
That is all I do, show others how to promote Earth day with a Professional Events Marketer that is sharing their knowledge specifically to get an important message out. Just imagine sending one note, or just telling a friend or colleague your business Supports Earth day!
It is not just about prestige it is about you creating value in your network. When you are seen to have a heart, this is attractive to people in all lifestyles. This can make your businesses look very good. Its attractive seeing a business you are involved with supporting a worthy cause!
Let me explain.
We have created Groups that are Non-profit just for helping with education, one is called Recycling Renegades, 10×10 at Face book and we have used many services that many do not know are there but used them strategically to spread the message about Earth Day. We are just getting the word out that Earth Day can Help Corporate create a better image.
To make it worthwhile for a businessperson to get involved, we have managed to get a great set of training on Social Traffic Media to get them interested in helping us with Earth Day.
Just look at the Fun we are having, but I have to say, it is a very serious message. Its not taken lightly as its global warming, pollution, rain forests rebuilding, forestry’s, clean ups on oil slicks and more. We have demonstrated our dedication with the work going into promoting Earth day and all the people fulling you tube channels and other Medias, just to get the word out about earth day, we are taking this serious.
Warning, it is not pretty! What is happening to this earth has been hidden and covered up, please if you have a weak stomach do not look and investigate.
Now look at all the Professionals that want to be part of this big picture and give a little time to learn better skills and Promote our Earth.
If over 2000 People see the Value, will you? Many together can make a loud voice for earth day do you not think it would be exceptional for your business to be involved in such a momentous occasion.
Get with it or be left behind, it is a simple decision!
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Earth Day Birthday Article Source: http://EzineArticles.com/?expert=Lisa_Lomas |
On the GreenBeat: Saudi Arabia imports SolFocus's solar, Prop 23 …
Iris Kuo is the VentureBeat’s lead GreenBeat writer. She has reported for The Wall Street Journal in Hong Kong, Houston …
Spacecraft Calibrations Provide Unique Solar â??Artworkâ? | Universe …
If you check out the Solar Dynamics Observatory website today to get an update of what the Sun is doing, (which you should -everyday!) you may have noticed.
Solar Fridge Inventor Honored By Nobel Prize Winners | Inhabitat …
23 year old Emily Cummins has been honored for her design of a solar powered refrigerator with a Oslo Business for Peace Honouree.
Tunisia to host international conference on Solar Plan
One session will be devoted to the presentation of projects and initiatives in renewable energy so as to make known Tunisia’s achievements in the sector of exploitation of solar energy (solar water heaters, solar homes program, …
Solar Saudi Arabia Courtesy of Solar Frontier and SolFocus …
Solar Frontier, a Japanese thin film solar company with big plans (and a 100 percent subsidiary of Showa Shell), just announced that it will supply Saudi Aramco with 10 megawatts of CIS solar modules for a car park installation in …
How Can Technology Help the Environment?
How Can Technology Help the Environment?
How can technology help improve the environment? Are we promoting a more singular existence, where individualism is the force that is driving us along? We are now living in a world that is in an accelerated mode of change and innovation. Is this rate of change detrimental to our existence? Think about this for a moment. On the one hand we have improvements in all areas of our lives some are greater than others. On the other hand we are looking at the effects of the harmful destruction of our planet earth.
The first computers started to emerge around the 1940’s, now we have computer processors in a lot of the electronic equipment we use every day. We even have computers that can fit in your hand that have more power than the first computers.The first Television and television transmission appeared in 1925 and now we are watching gigantic flat screens, some as big as buildings and others screens as small as wrist watches. In the past 80 years the medical field has also grown in leaps and bounds in the areas of IVF, genetic research, cloning, stem cell research, along with the progress in the prevention, cure and management of various diseases. Other fields such as astronomy, environmental science, weapons/warfare and engineering have also had their fair share of extraordinary development achievements.
Looking at the issues of Global warming and human environment interaction we are currently facing within our natural environment. Should we really be in a race to ruin the land where we live? We cannot keep up with the current technology, just look at all the equipment you have taken to the recycle tip in just the last 12-24 months. Consider how many Televisions, Videos, DVD players, Computers, Laptops, Hi-fi’s and Home entertainment systems you have changed or bought recently, the list is endless. When an improvement is made to a product it can sometimes make the original product obsolete. Satellite Navigation equipment a new and easily available product for everyone. Even if you only use it once a year it is believed to be a must have product. Mobile phones is another product every man and his dog has one these days. How often do you change your mobile phone for the latest model? Can you ever imagine being without a mobile phone? How did we ever cope without them? The raw materials used to make a phone cannot be recycled easily.
I believe as we get to understand one part(s) of our lives we seem to lose sight of others parts that are equally as important. What can be done to slow down the rate of change or how do we as a nation become more aware of the effects of the rate of change has on our environment.
If we could not have a new television or other new product until the old one had been recycled properly we would help the environment tremendously. Today if we implemented this many products or versions of products would be missed because of the speed at which technology changes. Like the latest flat screen with super clear picture quality. It seem that every other week we get the next new and improved product. Just look at washing power or washing up liquid advertisements.
Just some food for thought more to come soon.
Take advantage of more free valuable content at this website: http://computerbass.com/
You will find something of interest…
Eco Tech â?? Solar Spark Lighter « Thoughts from The EcoMaker
The Solar Spark Lighter is a compact solar charged lighter that is great for Boating, Camping and Outdoor Survival. The disk of the Solar Spark is a.
Solar VPS Launches Unmanaged Linux VPS Brand VPSColo | WHIR Web …
Solar VPS Launches Unmanaged Linux VPS Brand VPSColo | The Web Host Industry Review – Web Hosting News.
NASA's Solar Shield to mitigate damage to power grid from severe …
The solar storms that cause the stunning aurora borealis and aurora australis (or northern and southern polar lights) also have the potential to knock out telecommunications equipment and navigational systems and cause blackouts of …
Recipe for U.S. solar boom: policy, money + a little sunshine …
There’s just a 12-figure catch: Investors need to put $100 billion into the solar industry to keep the generation of solar electricity growing by 42 percent a year for the next decade to expand capacity from the current 1.4 gigawatts to …
Ground broken on U.S' first big solar power plant in 20 years …
BrightSource is one of a half-dozen big solar farms, with a combined electricity-generating capacity of 2829 megawatts, licensed by the California Energy Commission over the past two months. By year’s end, California and federal …
Go Green With Natural Finishes
Go Green With Natural Finishes
Finishes are coatings that are applied to the external and inside surfaces of walls to protect them from the elements and from wear and tear. They also improve the appearance of the structure and are used to enhance the design of rooms.
Petroleum, our main source of oil-based wood finishes and paint, is a non-renewable resource. There are now paints and finishes on the market that are derived from a renewable resource, which in a small way, helps to reduce dependence on oil, and contributes to a more sustainable world.
The basis for these products is whey, which is a product of cheese making, and which has a high biochemical oxygen demand (BOD). This increases the burden on waste treatment facilities, and can also pollute our natural water sources. In the last ten years, this by-product has been used for many new purposes, one of which is natural wood finishes.
When choosing paints for your decorating, use the low or no VOC (volatile organic compound) paints. For hundreds, no, thousands of years, earth, clay and lime have been used, both in hot and cold areas of the world. And now this knowledge is being readapted for contemporary use. If you do any redecorating or new building, it makes sense to contribute to having green, healthy surroundings.
Low and no VOC paints have less smell and less impact on air quality. EPA studies have shown that indoor air quality is up to five times more toxic than outdoors, mainly because of toxic emissions from paint and finishes. This particularly affects anyone with allergies, asthma, or chemical sensitivities. With the new “green” paints, there will be lower contamination of landfills, groundwater, and the ozone.
Switching will not cost you more. Cleanup is easily done with soap and water, instead of toxic chemicals, and brushes can easily be cleaned and reused. The paint is still washable, and is far less harmful to you, your pets, and the environment.
Lisa is a freelance writer with a specialty in Internet content and SEO articles. She has written thousands of articles, hundreds of ebooks and thousands of website pages and related content. She has also authored her own books and works as a consultant to other writers, Internet marketers and Internet businesses.
Professional wordsmith for hire: gamer, wife, mother, entrepreneur, published poet, co-owner of game guides company (http://www.liti4.com), public speaker and Internet business consultant. You can learn more or follow Lisa’s blog from her website: http://www.freelancewriter4hire.com
Electronics’s Recycling
Electronics’s Recycling
Society’s technological advancements have grown significantly over the years. Electronics devices such as telephones, cell phones, radios, CD and DVD players, televisions, and computers are products that are used in every household. These items are just a few of the many electronic devices that can cause serious environmental damage due to their toxic components. Electronics that are in need of disposal are referred to as e-waste, or electronic waste. Because of the advancement of electronic products, there has been a growing concern about the hazards of electronic waste. Some of these concerns include: improper disposal of toxic materials, health and safety concerns for people disposing of these items, as well as dangers to the soil and water supply. For instance, electronics are made using a considerable amount of toxic substances such as lead, cadmium, aluminum, zinc, copper, and plastics which can all leak poisonous material in the ground and water. These environmental concerns have resulted in the establishment of electronic recycling facilities and industries who take old electronics such as computers for the purpose of recycling and safe disposal.
Electronics containing materials such as metals, plastic, are valuable to the recycling companies. Disposing of electronics through a recycling company will result in fewer electronic devices going into landfills and lower carbon emissions.
Recovering Raw Materials: Recycling electronics involves recovering raw materials from the electronic equipment. Materials such as steel, copper, wires, aluminum, brass, plastics, glass,etc., are extracted and sold to smelters so they can create raw materials. Depending on the type of metal being extracted, they can be processed and used in products required by such businesses as the steel, construction and cement industry. Plastics and wood can be used as fuel to provide heat to industrial furnaces which converts to steam. Metals such as copper are sold to metal refineries.
Plastics: Plastics from such items as computers, computer mice, and keyboards, are sent through shredding processes and machine sorted. They are then sent to other recyclers for further processing.
Larger Electronics: Items such as televisions and computer monitors are dismantled by hand. The leaded glass cathode ray tubes are removed and disposed of safely. Plastics, copper, and circuit boards are removed, separated, and processed.
Hazardous Items: Toxic items are removed from electronic devices and disposed of safely. Toxic substance can include leaded glass, rechargeable batteries, non-rechargeable batteries (i.e.alkaline, lead acid, cell batteries) mercury in lamps and switches, parts containing polychlorinated biphenyls, as well as ink and toner cartridges. The remaining non toxic materials are processed and the recyclable materials are recovered. The materials are shredded and separated according to type. For instance, they can be divided into such materials as steel, copper, aluminum, and plastic.
Refurbished Electronics: There are now many companies that acquire used computers, repair and update them, and resell them at a much lower price. This is a great way to keep electronics out of landfills and make technology more affordable.
Donate Your Computer: If you are getting rid of your old computer because of a recent upgrade, consider donating it to charity. Many schools and non profit organisations are in need of computers. There are companies and businesses that will take your computer, refurbish it, and donate it to a needy cause. Make sure your computer is wiped clean of all information before donating it. Donating your computer helps the community and the environment.
We are fast becoming a technology dependent society. When it comes to protecting and conserving our environment, we have to adapt and change our technological practices to ensure a sustainable future. Recycling electronics is a great way help the planet.
Know that repairing a computer or laptop repair Toronto is not cheap, but it can be cheaper than having to replace the computer. If you run into these situations, you will need to hire a onsite computer repair service Toronto.
Solar Energy is Emerging as an Investment Opportunity | Bank …
The harnessing of solar energy comes in two forms, a rarity on the alternative energy arena, since the sun’s light and the sun’s heat are both able to be collected.Solar Energy as an investment vehicle is not a new concept. …
Advantages of Solar Renewable Energy | greenvoyager.com
By the time you finish this article you will probably wonder why you didn’t get started with solar renewable energy before reading this, because there are so.
Make: Online : Solar garden lamp
This lovely lamp by gozdom, found in the MAKE Flickr Pool, consists of a moonflower equipped with an LED, a solar sunflower, and beautifully etched brass leaves….
Engineering Our Very Own Solar Panels Will Be Pretty Satisfying …
The solar panel is the most basic element of a solar power system. It primarily functions to gather sunlight during certain periods of the day to power different devices and structures. Depending on the size, solar panels can power …
Solar Power Satellites the Way of the Future | Opinion | Epoch Times
If Solar Power Satellites comes to fruition, every country will receive low-cost, pollution-free energy from space.
News Of Green Cafeteria
Yahoo Vs Google – Who’s Greener?
Silicon Valley is known for both innovation and hype. Recently, this pool of innovation has extended beyond bandwidth to the protection the environment. Google and Yahoo, the search engine giants, are both headquartered in the Valley and have been making headlines by greening their offices, reducing energy consumption, and carbon trading. The PR motivations are obvious, but are the green benefits really there? To set apart the hype from reality, we have analyzed the green value of both Google and Yahoo’s headquarter facilities.
We looked at the ecological services provided by green landscape features such as trees and open space (i.e. grass). Grass and trees are pervious surfaces, meaning they allow water to permeate into the ground. Roofs, sidewalks, patios, and asphalt parking lots are examples of impervious surfaces, where rainwater drains into the public storm drains. Heavy metals, oil, and other pollutants are carried off parking lots in rainwater, which often lead directly to open water habitats, where fish, birds, and reptiles live.
In terms of ecological services, trees and grass have been proven to:
1. Remove and store carbon from the atmosphere,
2. Remove certain airborne pollutants,
3. Permits rainwater to seep into the ground as opposed to draining into the stormdrains, and
4. Remove certain waterborne pollutants.
Here is a look at how green Google and Yahoo really are and how the measure up against each other.
Google Green Report
Google’s headquarters, the Googleplex, covers 44 acres, nearly 50% of which is grass or tree canopy. This is an impressive paved to open space ratio. The grass and trees on the Googleplex remove roughly 2 tons of carbon from the atmosphere per year, or 0.04 tons per year per acre. In addition, 530 lbs. of air pollution are removed per year (e.g., ozone, carbon monoxide, nitrogen dioxide, sulfur dioxide, and particulate matter), or 12 lbs. per year per acre. It was assumed that the parking lot of the Googleplex is asphalt, and not a type of porous pavement, so the cost of managing rainfall runoff from the Googleplex is $4,474 per year, or $103 per year per acre. The abundance of grass and tree canopy on the Googleplex go a long way to offset the water quality impacts of the paved surfaces (mainly the parking lot). On average, the grass and trees reduce water pollution by 6%, as opposed to the entire property being paved.
Yahoo Green Report
The Yahoo headquarters, Yahooplex, covers 28 acres, a third of which is grass or tree canopy. This is a classic ratio of paved to open space for large office complexes in California. So far, par for the course. The Yahooplex removes 0.36 tons of carbon from the atmosphere per year, or 0.01 tons per year per acre. 114 lbs. of air pollutants are removed per year, or 4 lbs. per year per acre. In terms of rainfall, the cost associated with runoff is $9,219 per year, or $331 per year per acre. The grass and tree canopy help offset the paved areas with a 2.3% reduction in water pollution as opposed to the entire property being paved.
The final green analysis?
Google kicks Yahoo’s butt, largely due to the forethought, or luxury, of the Googleplex having 50% of its property surface providing green services. The good news for both Google and Yahoo is that over time, as trees grow, so will the tree’s canopy and mass, thus storing more carbon and removing more air pollutants.
Green next steps for both Google and Yahoo is to:
- Install porous parking surfaces, allowing up to 80% of rainwater to seep into the ground,
- Install green roofs, absorbing rainwater while reducing cooling costs and energy consumption, and
- Planting larger trees on the south and west sides of the buildings to reduce cooling costs and energy consumption.
While we crunched the hard numbers to settle the Google vs. Yahoo green debate, this report illuminates the great opportunity that awaits these two Silicon Valley giants to harness the ecological services of green surfaces.
Chris Erichsen is a GIS Mapping consultant with the Erichsen Group, GIS and Mapping in northern California. He has over 10 yrs of GIS experience and helps many industries around the world apply GIS mapping technology. Learn more examples of GIS mapping capabilities.
How to NOT Be One of Them – Farmers Are Being Pushed to Increase in Size Or Get Out!
How to NOT Be One of Them – Farmers Are Being Pushed to Increase in Size Or Get Out!
It doesn’t matter what size it is, your farm is an ever increasing asset, even more so if you can provide chemical free, clean food.
Australian conventional food prices are forecast to quadruple in price over the next five years. The reason is Asia. We are in the middle of a global revolution in the way we think, eat and live.
This week I received this news from Craig Sobey who has recently toured China with representatives from five city councils, Austrade and Regional Development Victoria and reports that there is a real opportunity for all to take a significant market share in this period.
Basically, if it is Australian and premium quality there is a ready market. Australia is seen as a source of safe food regardless of whether it is organic or conventional. At this stage price does not appear in the conversation, just consistent supply and traceability. The interest in all products represented included convenience food packages (pre-cooked), meats, dairy, wines etc.
Did you know:
- This co-op now owns China’s fifth biggest supermarket chain with over 500,000 stores.
- There is a farmer’s co-op representative with over five million members?
- 6,000 of them over 30,000 sq metres. The supermarket turned over 18 billion dollars in 2007 with revenues growing by 150 % per annum on average.
- They have offered an entire Australian Pavilion for Aussie produce including organics in their premiere stores in Beijing and Shanghai. Organic Wines were the big attraction.,
- China creates 80,000 millionaires each year.
- There are over 350 million middle class and a niche market of super wealthy Chinese? (Craig told me that French wine is selling as much as $600 a bottle and even one watermelon cost $40!).
However there is real interest in China for organics (which they refer to as Green Food) and particularly food safety/ traceability which is the paramount concern for all serious buyers they met. A new Australian wide network (not for profit) company is being formed for all sections of the organic market. This is so that a pool of members can tackle the export markets together. Its goal is to give you an export premium to help make membership very appealing.
The time is ripe for all growers to stop and think about the future of their farming. What choice will you make? Your future will depend on it. Even if all of Australia’s certified organic farmers, processors etc. were to unite they could not supply the market in China alone and therefore there is untapped potential over the next ten to twenty years to be further developed.
Farming Secrets is a club for farmers who want to farm healthier and more profitably. Farming Secrets reconnects them with the experts through supporting them with one to one help and constant support from experts in order to fast track their farming goals that much quicker.
Hugo Disler
For More information about Natural and Organic Farming visit http://www.farmingsecretsblog.com
To discover the secrets of natural and profitable farming, visit http://www.farmingsecrets.com
Government Lists Solar, EV, Digital Grid Projects Among 100 …
The administration of President Obama has released a list of 100 projects receiving Recovery Act funding that it says are “changing America.” Many solar, electric vehicle and digital grid projects are among those on the list.
Solar building system manufacturer moving to Ringgold | WSLS 10
United States Green Energy â?? a manufacturer of exterior building products integrated with solar systems â?? plans to move its manufacturing operations to the Cane Creek Centre in Ringgold in Pittsylvania County, the company announced this …
Varian Looks to Enforce Moore's Law in Solar : Greentech Media
But Moore’s Law doesn’t really map to solar. Moore’s Law is about getting small. With solar, shrinkage doesn’t work. Shrinking a solar cell reduces the surface area that is exposed to the sun, which reduces the amount of power it can …
Solar Frontier and IBM agree to develop CZTSS solar cell technology
Japan’s Solar Frontier has signed an agreement to jointly develop thin-film solar cell technology with IBM based on the elements copper, zinc, tin, sulphur and selenium (CZTSS). This joint development will couple IBM’s groundbreaking …
Sec. Salazar Approves Another Massive Concentrating Solar Power …
And while concentrating solar thermal (CST) has been losing projects to cheaper PV, this approval is a big win for the concentrating industry. Now, if only the folks at the Dept. of Energy Loan Guarantee program could steal a page from …
Green Transportation – No Bailouts Necessary
Green Transportation – No Bailouts Necessary
Unless you have been trapped in a cave for the last seven months you are well aware of the disaster overtaking the American automobile industry. Our government is using billions of taxpayer’s dollars to prop up an industry that has been one of the leading facilitators of numerous ills in our society, which will also take billions of dollars to repair, if it is even possible to do so.
Air pollution which contributes to increased medical costs, urban sprawl, a negative balance of payments from importing oil and global warming can all be traced at least in part to our addiction to the automobile. Now that I’ve ranted about the autos effect upon our society I also greatly acknowledge that we all, myself included, greatly enjoy the mobility and freedom provided by the pernicious machine. We can’t live with ‘em and we can’t live without ‘em. What are we to do?
A lot has been written about the currently nonexistent plug-in electric car. This machine when it finally hits the market could help solve some of our problems but current pricing estimates place the car in the forty thousand dollar range. I’m sure of one thing, it won’t solve many problems if you don’t sell them and at that price I’d hedge my bets.
However, there is one personal transportation option on the market that fits into all of President Obama’s initiatives for energy self sufficiency, global warming (reduction of green house gases), health care (exercise and weight loss), environmental protection (reduction of air and water pollution), and infrastructure renewal. That option is the Electric Bicycle.
The electric bike using lithium batteries (traditional lead-acid is very environmentally harmful) can go, depending on load factors and riding habits, roughly twenty miles at twenty miles an hour on one charge. It is almost completely silent, gives off no emissions, does not use foreign oil, does not require much room to operate or park, never needs a tune up and provides exercise. It eliminates many of the drawbacks of riding a traditional bicycle for basic transportation while having few of its own. I recognize that not many of us are hardy enough to ride a bike in the rain, snow or freezing cold but that applies as well to motorcycles, motor scooters and traditional bicycles. The electric bike can get you farther, faster without arriving at your destination soaked in sweat. It can operate in many places where other motorized vehicles cannot and makes taking hills a cinch. Riding five or ten miles to work is no big deal and you can simply pedal around bottled up traffic. Usually the lightweight batteries easily detach from the bike and can be carried into your place of work or school for recharging.
Some electric bicycles offer high tech extras such as LiFePO4 batteries that are good for a thousand recharges, regenerative braking that helps recharge the battery much as a Prius does, and internal gearing to generate more torque for uphill climbs. Most electric bikes use what is referred to as a hub motor. This is not a traditional gear or belt-drive motor but is built directly into the hub of one of the wheels. This motor contains two internal rings of opposing magnets that when power is applied causes the wheel to spin. Such motors need little service and never require oil changes, spark plugs or new belts.
Electric bikes come in several of styles. There are the traditional “beach cruiser” and mountain bike styles as well as electric folding bikes, tricycles and “road bikes”. The electric folding bikes are particularly interesting. Smaller and lighter than a traditional bicycle, they easily fold up and fit into a car trunk and can be carried on a commuter or subway train with little effort. You can take the train to your stop, unfold the bike and pedal on your way. They are also useful for those who live in tight quarters and have no external place to store their ride.
For those of you that are moderately handy with tools, there are a number of electric bike kits on the market that allow you to adapt an ordinary bicycle into an electric bike. One company, Worldwide Electric Bikes, has a particularly well-designed kit that has many of the features I previously mentioned. These electric bike kits do not require a high level of mechanical ability to install. A few common hand tools, a basic understanding of how things go together and the ability to read directions is all that is required. However, if you don’t know the difference between a crescent and a hex wrench, you may wish to buy a pre-made bike or have someone install the kit for you. If you do choose to go the kit route, you can end up with a much more powerful and sophisticated bike for substantially less money than a factory built electric bike.
Electric Bicycles in all forms have long been a staple of personal transportation in Europe and Asia where there are hundreds of thousands in operation. In the United States bicycles have traditionally been dominated by the toy or recreation market or for the dedicated enthusiast. In both Europe and Asia, cycling has been a traditional means of basic transportation. I believe that this is going to be more and more the case in this country. People are avidly seeking relief from the high financial and societal cost of automobiles. The electric bicycle, while not a panacea, is definitely poised to help provide a portion of that relief.
Electric Bicycles are inexpensive to purchase, require no license or insurance, have a negligible cost of operation and are totally “green”. So, what’s not to like?
http://www.worldwideelectricbikes.com
IEEE Spectrum: Portable Solar Power Plant Purifies Water, Makes …
The Hydra’s 3.65- by 2.74-meter polycrystalline silicon solar panel array, which Strizki says is 8 percent efficient, generates 2.88 kilowatts. According to Strizki, that is enough to do the following: power a 900-watt pump that draws …
Varian Looks to Enforce Moore's Law in Solar : Greentech Media
But Moore’s Law doesn’t really map to solar. Moore’s Law is about getting small. With solar, shrinkage doesn’t work. Shrinking a solar cell reduces the surface area that is exposed to the sun, which reduces the amount of power it can …
Making cheaper solar cells – Physics Today News Picks
New York Times: A Massachusetts company, 1366 Technologies, has found a simpler and more economical way to produce solar panels. The current method of producing silicon wafers, the basic building block of solar cells, is to cast the …
Solar eclipse, from space! | Bad Astronomy | Discover Magazine
Astronomy | For their Picture of the Week last, uh, week, the Solar Dynamics Observatory crew chose a fantastically cool shot: the Moon cutting across the disk of the Sun!W.
Using Lasers and Solar Cells to Fight Cancer | Science Not Fiction …
Electronics | By bringing the field of photovoltaics into medicine, researchers hope to create a far more precise method of drug delivery for fighting cancer. That’s right: t.
Environmental Statements
Environmental Statements
Under the relevant European Directives, an Environmental Statement is the formal product of an Environmental Impact Assessment. Environmental Statements are often organised in a way that describes the environmental baseline, mitigation and effects for each type of environmental receptors: ecology, water resources, archaeological resources, human beings etcetera. Contaminated land is often managed in the same ways as the various environmental receptor groups, although it is principally a cause of impacts rather than a receptor. It also often refers to a pre-existing condition and its damaging effect is on a variety of different receptors such as human health, structures and buildings, surface water features, groundwater features and ecology. This often means that land contamination specialists struggle with integrating the issue in a logical manner in an Environmental Statement. Sticking to the structured approach of an environmental statement is essential to ensure a clear description of the existing environmental condition, the potential impacts and the actions taken to avoid, minimise, offset or manage the impacts. This article is based on UK practice and legislation, although fundamentally the issues should be similar within other contexts.
Contaminated land is in many countries considered on a source-pathway-receptor basis. This is important to understand the impact land development can have on the issue of contaminated land. Development can interfere with any of these three elements. It can introduce sensitive receptors by changing the use of land, for instance by building new residential units on a site that was previously used for heavy industry. New pathways linking pre-existing contamination with an existing receptor can be formed, for instance when piling through a non-permeable layer connecting a layer of contaminated soils with a deep aquifer. Finally by introducing pollutants on the site a development project can introduce a potential source of contamination.
The second element to consider is the structured approach of an environmental statement. Apart from the introductory and procedural elements described in the environmental statement, a good environmental statement comprised the following sections:
- environmental baseline conditions
- potential environmental impacts
- mitigating measures
- residual environmental impacts
There should be a logical relation between the different sections. Any receptor that is affected and described in the section about the potential impacts and effects should have been introduced in the section describing the baseline. Any material impact should be assigned a mitigation or management action etc. Implementing this structure allows a clear description and understanding of the environmental impacts and the way it will be managed.
Applying these principles to contaminated land will result in a baseline condition section that describes the current sensitive receptors that are present within the potential sphere of influence of the development, the sensitivity and importance of these receptors, the presence of any pre-existing contamination and the presence of actual and potential pathways. The next section, potential environmental impacts or effects, first considers the impacts that the development will have in terms of the introduction (or removal) of sensitive receptors and the creation of new pathways between existing and potential pollution sources and receptors. In addition this section will describe the potential environmental impacts that are associated with the introduction of new sources of contamination. In the third section, mitigating measures, a description of the actions to mitigate each of the impacts that may occur should be provided. Finally a statement of the residual impact of the development is provided in the last section: residual environmental impacts.
Paul Giesberg is an environmental consultant with a special interest in environmental impact assessment and sustainability in land use development.
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A Change in Krill Ecosystem
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.