Archive for September, 2010
World Environment Day, which is commemorated each year on June 5th, is one of the most significant mode through which the United Nations stimulates the global awareness of the environment. It is by this way that the United Nations attract political attention and enhances action to shape a better global environment. Each year the World Environment Day is celebrated in recognition of unique theme. Norway was honored to host International World Environment Day 2007 celebrations in recognition of the theme — ‘Melting Ice – The Hot Topic’. Over a hundred nations across the globe celebrates the World Environment Day with highly relevant theme each year.
The slogan for World Environment Day 2008 is ‘Kick the Habit! Towards a Low Carbon Economy’. With an understanding of the fact that the change in climatic condition is gradually becoming one of the most defining issue of the age, UNEP is requesting the nations, companies and communities to put special focus on the greenhouse gas emissions and to put spare thought over how to reduce them. The World Environment Day 2008 is going to highlight resources and focuses on promoting low carbon economies with a view to shape a better and healthier future. Promoting a low carbon economy involves steps towards improved energy efficiency, alternative energy sources, forest conservation and eco-friendly consumption. The chief international celebration of the World Environment Day 2008 is going to be held in New Zealand.
The Heads of State, Prime Ministers and Ministers of Environment deliver statements and commit themselves to care for this only green planet of the universe. Serious pledges establish sound and non-transitory governmental policies related to environmental management and economic planning. bicycle parades, tree planting , recycling campaigns, clean-up campaigns, street rallies, school level essay and poster competitions etc. are organized all over the world on June 5th to celebrate the World Environment Day.
Here are some information on World Environment Day for the last ten years regarding where the WED celebration was held at and what were the respective themes each year:
Places of celebration:
World Environment Day 2007 – Tromsø, Norway
World Environment Day 2006 – Algiers, Algeria
World Environment Day 2005 – San Francisco, U.S.
World Environment Day 2004 – Barcelona, Spain
World Environment Day 2003 – Beirut, Lebanon
World Environment Day 2002 – Shenzhen, People’s Republic of China
World Environment Day 2001 – Torino, Italy and Havana, Cuba
World Environment Day 2000 – Adelaide, Australia
World Environment Day 1999 – Tokyo, Japan
World Environment Day 1998 – Moscow, Russian Federation
Themes of celebration:
World Environment Day 2007 – Melting Ice – a Hot Topic?
World Environment Day 2006 – Deserts and Desertification – Don’t Desert Drylands!
World Environment Day 2005 – Green Cities – Plan for the Planet!
World Environment Day 2004 – Wanted! Seas and Oceans – Dead or Alive?
World Environment Day 2003 – Water – Two Billion People are Dying for It!
World Environment Day 2002 – Give Earth a Chance
World Environment Day 2001 – Connect with the World Wide Web of Life
World Environment Day 2000 – The Environment Millennium – Time to Act
World Environment Day 1999 – Our Earth – Our Future – Just Save It!
World Environment Day 1998 – For Life on Earth – Save Our Seas
Incoming search terms:
There are many alternative fuels available on the market today. President Bush seems to be on a mission stating that Americans are “addicted” to oil.
Alternative fuel is quickly replacing gasoline, resulting in fewer pollution and cost efficiency. The U.S. Department of Energy is guiding the efforts due to a need to limit air pollution levels to protect human health and the environment. The following are a list of alternative fuels that are becoming more and more mainstream. Eventually, these fuels will replace our dependency on gasoline.
Ethanol is a fuel made from crop grain. It is a renewable fuel. Ethanol is used in 10 percent blends with gasoline to create gasohol. Ethanol is not considered an alternative fuel unless it is mixed at 85 percent with gasoline to create E-85. You will start to see E-85 being provided at all major gas stations in the very near future.
Another alternative fuel that is replacing gasoline is Liquid Petroleum Gas (LPG). LPG consists mainly of propane, propylene, butane and butylenes in various mixtures. LPG is a byproduct of natural gas processing and petroleum refining. LPG can also be produced domestically; therefore, lessening our reliance on foreign companies to provide our fuel.
Methanol is an alcohol free fuel. A process using natural gas as a feedstock produces methanol. The alternative Methanol fuel is being used as M-85.
Biofuels are also beginning to enter the mainstream. Biofuels are chemicals made from cellulosic biomass such as herbaceous and woody pulp from agricultural and forestry residues. A majority of biofuels consists of municipal waste and industrial waste. Biofuels are also domestically grown, reducing our reliance on other countries to supply our fuels.
Finally, good old electricity is being tapped into to help power vehicles, known as hybrids. Batteries provide the electricity used to power these vehicles. The batteries are charged from electricity that is produced at a power plant. Power plants utilize fossil fuels to produce energy. There are no emissions from a hybrid, which is good for the environment.
We have listed several alternative fuels that are going to continue to replace gasoline on a massive level. These fuels are better for our health and for the health of the environment. They also will cut our reliance on foreign countries to provide us with our fuel. The end result will be lower costs at the pump.
Sustainable energy has been one of the main preoccupations worldwide. Leaders of industrialized nations, environmentalists as well as leaders of developing nations have seen in biofuel production a way out to several problems and a horizon of hope, as biofuel has also opened up a number of possibilities to help poor people in the developing countries of Asia, Latin America and Africa who are mostly based on rural settingsFirstly this production can promote an investment in agriculture creating a large number of jobs, raising the level of life quality in those poor areas. Secondly, it will also bring to rural areas some technological devices that will improve many lives. A good example is ethanol in Brazil which has a promise to create 12 millions of jobs by 2030. Furthermore, the production of ethanol is a hope of recovery after economic crises which have taken millions of workers to lose their jobs.
On the other side are those skeptical who criticizes ethanol defending that poor people from developing countries need to grow food, not another cash crop to be exported to industrialized countries. For those ones, the biofuel would worsen poor people’s lives.
Thus, in Africa some excitement about ethanol production as a new path to development has led African leaders to embrace this idea and biofuel/ethanol has been already largely produced in the continent. Considering this sustainable energy revolution, the main goal of this essay is to examine the constraints for African women farmers of ethanol production in Africa because any proposal of development that does not include women is already a failed attempt.
Many people struggling through the tough economy are not going to be able to take advantage of the 2009-10 Energy Efficiency Tax Credit simply because they can’t afford new windows and doors, water heaters, or more insulation. However, there are a few things you can do around your home to air seal it to save money during the winter months and during the summer.
Because of the price and use of energy, architects and builders now design a home to be a “thermal envelope”. That is the sum total of the home’s insulation systems including walls, ceilings, foundation, floors, windows, and doors. These work more effectively with good, tight fits that seal out the weather and air. By having a tight seal on your home’s thermal envelope, the less energy you waste or lose by exchanging it too often with the air outside.
So, with this in mind, let’s start at ground level and work our way up to seal your house.
A moisture barrier (usually plastic sheeting) covers the earth beneath a structure to prevent moisture from infiltrating the structure from the ground. All-wooden structures last years longer if they are kept dry and out of contact with the ground. For a house, not only does it help prevent rot but it also helps keep the drier. Because moisture in the air holds heat, even during the most humid months, a moisture barrier will make your Texas home feel drier and cooler.
Most Texas homes are built on either a slab or have crawl spaces under them. Houses with slab foundations typically have concrete poured on top of a plastic moisture barrier. This limits the infiltration of moisture into the thermal envelope of the house. Homes with crawl spaces, meanwhile, feature a moisture barrier in their crawl spaces. Some older homes do not have one and these can be installed by the home owner very easily.
A moisture barrier is plastic sheeting, usually about 6-8 mils thick and is available at any hardware store, typically in sizes ranging from 25 × 25 feet to 100 × 100 feet. It also need not be one single piece of plastic. As long as the sheets overlap each other by about 6 inches or so, it will be effective.
To install, you will need to know the dimensions of your crawl space and buy enough plastic sheeting to cover the ground in that space. Simply cut the plastic sheeting to cover the earth from wall to wall, laying it flat. You can use either black or clear plastic, but I would use clear because black plastic would make your crawl space feel like a cramped version of Batman’s lair.
You should notice the difference within 24 hours. If your house feels too dry, simply fold back some of the plastic sheeting to expose the earth underneath. Continue adjusting until your home feels the most comfortable to you.
As mentioned, moisture barriers limit the infiltration of moisture into the thermal envelope of the house. The house feels drier: It will be easier to cool in the summer and less likely to develop mold or contribute to wood rot in the winter.
Mudsill and Rim Joists
The next place to check out is the mudsill. The mudsill is the board that is bolted flat on to the top of the foundation wall. An example of one is a 2×8 board bolted onto the final course of cement blocks. It provides a bed to attach the flooring joists and banding boards for the first floor of the house. Depending on how well it is installed, it can let in a lot of cold air and moisture.
Places to look for gaps is where the mudsill is fastened to the foundation. A common building practice now is to put down a plastic foam gasket over the foundation before attaching the pressure treated lumber that will be the mudsill. In older homes, either a paper-backed cellulose material was put down or nothing was used. To find gaps, get as close as possible to the mudsill from the inside and look for daylight shining through between the mudsill and the foundation wall and feel for a draft of cool air.
If your foundation is made of cement blocks, look for the vertical joints between the blocks. When these blocks are put into place, the mortar between the blocks often slumps leaving thin mortar or none at all. Over time as the house settles, holes can appear. While these might be small holes that let through tiny amounts of air, if your home has 10 or 20 of them, you’re letting in a lot of weather and insects. Seal every hole you find with silicon caulk or expanding foam.
Another place along the mudsill to look for is where the rim joists attach. The rim joist (sometimes called “banding joist”) is the piece of wood that closes off the end of the flooring joist or is the last floor joist underneath the exterior wall. The bottom edge is not necessarily an air-tight seal. In fact, I lived in one older house where there was a half-inch gap between the rim joist and mudsill. Now, while this seems small, the gap ran for the entire length of the house: 25 feet. It was the equivalent of leaving a 24 inch by 24 inch window open all the time. Some expandable foam quickly sealed this gap and there was a noticeable improvement in comfort and cost right away.
If you have double-hung wooden sash windows with storm windows that are drafty, there are several ways to make them more energy efficient.
Make sure the glazing on the glass panes of the sash windows is not cracked or crumbling. The glazing helps hold and seal the glass to the wooden window and thus blocks drafts and quiets rattling – especially from traffic. It also lessens the likelihood that the glass will break if a pet or a child presses against it. Glazing is something of a skilled art. That being said, it’s not that hard to do. Re-glazing a window yourself can save you $50 to $100 or more. All you need is glazing putty ($5), a putty knife ($2), some glaziers’ points ($2 for a box of 100) and some time.
First, remove any old, cracked, or crumbling glazing with a putty knife. Glazing putty dries to be very, very hard and will last decades. It can be loosened with a heat gun, but keep the gun moving or the heat will crack the glass.
When the old putty has been removed, remove all the old glaziers’ points. Now, lift out the pane and set it aside. Sand the channel where the pane fits on the wooden sash. Usually, I apply a thin bead of silicone caulk in this channel before replacing the glass. This helps to seat and seal the glass pane. This especially helps when working on multiple small panes (called “lights”) separated by thin or fragile wooden mullions (also called “muntins”). Next, insert new glaziers points. This is done by using the putty knife to press points into the wooden sash along the glass pane to keep it in place. Take your time so that you don’t break the glass.
Glazing putty can be purchased in either a can or a tube with a shaped tip that fits in a caulking gun. However, it does take some practice to get just the right angle and right amount of putty on the glass. When using the tube mix, keep the 45 degree angled tip steadily against the glass and lay a bead of putty the length of bottom of the pane. If you’re using the putty from the can, roll the putty into long snake (or rope) and place it along the edge of the pane and along the wood. Gently press it into position so that it forms a nice 45 degree angle with the putty knife. The putty is shaped this way so that water runs off the glass to the edge of the window sash instead of into the window pane channel where it can rot the wood.
The next thing to look for is if your windows close snugly. Both the top and bottom window have what is called a “meeting rail”. On the upper window, it is the bottom of the window and on the bottom window it is the top. These meeting rails are shaped so that they mesh together when they close. This helps seat and seal the window properly. Check to see if the bottom window runs firmly – but not tightly – along the window jamb as you close the window. If it’s too loose and wiggles back and forth, it probably won’t seat very tightly when it’s closed. You can use a putty knife to pry out the window jambs and then re-position them to improve how tightly the window will close. You might try adding felt or self-adhesive foam weather stripping. Also make sure you clean out any debris from the window to ensure the window will seat and seal snugly.
As metal storm windows age, the harder they seem to close. This usually happens because of dirt and corrosion. Make sure the window tracks are clean and free of dirt and debris so the window runs smoothly.
Outside, check that the storm window frame is held tightly in place against the wooden window frame. Screws that hold this frame in place might be loose and might need to be replaced or moved to a new spot. Most drafts from storms windows come from where the storm window frame meets the wooden window frame. Once you’re certain the storm window frame is secure, lay a bead of caulk into the seam where the metal storm window frame meets the wooden window frame. Typically, there are two slots cut into the bottom apron of the storm window frame. Do not seal these. These are weep holes that allow condensation to escape.
If you have modern, double glazed windows (windows with two panes of glass), one of the things to look out for is fogging between the panes. Double glazed windows are made by attaching a pane of glass with adhesive to either side of a half-inch wide aluminum frame either in a vacuum or a very dry environment. It is then a single unit and is installed into a standardized window frame. Fogging is a sign that the seal on the window unit has failed and water vapor has penetrated into the space between the panes. If the fogging is still present in summer, it’s a good guess that acids have also leeched in with the water vapor and have permanently etched the window glass. If the fogging disappears when the window warms, then it’s not too late to treat it. Examine the wood of the window for any discoloration from moisture. Look for peeling, flaking paint or soft, gray-colored wood. If you find some, sand it smooth and then seal it with an oil-based enamel or polyurethane. If the wood is very soft, you might try using an epoxy formulated to penetrate and preserve rotten wood. Be sure to mask the glass first with painter’s tape.
A builder installs a door or window with wedges called shims so that the window can float inside a rough opening in the framing. While this lets the door or window open and close freely as it expands and contracts during the year, it also means a lot of outside air can infiltrate your house by getting in around the window frame if it has not been insulated or if it has been damaged. During the summer, it usually isn’t a noticeable problem. During the winter, though, if you see moisture or mildew there could be a problem with the window frame.
Look outside for damage to the siding and window frame. Look for holes or wet, rotten wood, or even a loose piece of siding. It’s important to clean and seal problems like these quickly, especially if moisture has been getting inside your wall, because the damage will just worsen over time. Rotten or damaged siding can be replaced easily with new pieces from the hardware store. Rotten or damaged window sills should be completely removed and replaced and the inside of the wall inspected for mold, rot, and other damage. However, this is no small job and requires time and skills to complete. It might need the hand of a professional. For an immediate, short-term fix, clean out the rotten wood as best you can and fill the hole with fiberglass auto body putty. This will provide a hard, waterproof barrier against the weather. Be sure to contour and shape it so that it will not interfere with opening and closing the window.
If moisture or rain is getting into your window frame, check to see if any of your rain gutters run over head. Check to see if these are clogged. Also, consider installing drip edging along the top of your windows to help run water around and away from the windows and siding when it rains. After you’ve installed it, be sure to caulk it in place so moisture can’t penetrate behind it.
A lot of folks consider it hideous to put over your windows but it will keep the wind out: clear plastic sheeting. This is probably the easiest temporary energy fix owners of older homes use to keep cold, damp winter weather out. There are two approaches: Apply the clear plastic sheeting to the outside of the window by stapling it to the wood window frame and then nailing lathe over the stapled edge to secure the plastic. Or apply the plastic sheeting to double-sided tape on the inside of the window frame (usually available in kits from the home center). To be sure, neither is an attractive solution. However, if you have an older home with double-hung windows in poor condition, this short-term fix does a lot for only $10 and about 15 minutes of work. In fact, even if your windows close snugly, it might not be a bad idea for a north-facing window that doesn’t have much of a view.
Energy Efficient Window Treatments: “It’s Curtains for You!”
Curtains not only add style, color, and privacy to a room, they also act as an insulating blanket for one of the most thermally conductive parts of the house: the windows. Curtains are even more effective at sealing off a window when they have thermal backing. Thermal backing is usually foam because foam permits water vapor to move through the fabric rather than condensing on the cold side toward the window and causing moisture problems. An additional benefit to thermal curtains is that they help deaden noise from outside that is normally transmitted into the room by the window glass. In the summer, the curtains also block hot sun.
Thermal curtains can be made even more efficient by adding a valance with a top. Usually, window valances conceal the curtain hardware such as the rods and brackets. However, if the valance has a top cover, warm air that would normally circulate down between the cool glass and the back of the curtain is blocked. Valances can be made with plywood and then stained, painted, or covered in fabric.
Another option is a window quilt. These are blanket-like shade that roll down to cover the window. Some are held tightly in place by magnetic strips attached to both the quilt and the window frame.
Finally, one last accessory for the double hung window is the Window Worm. This is a fabric tube about 2 1/2 to 3 inches in diameter and is as long as a window is wide. It is stuffed with quilting foam or cloth scraps and laid along where the top and bottom window sashes meet to help keep out drafts. Longer ones weighted with sand can also be made and placed across the foot of doors.
The four most important renewable energy technologies – solar, wind, hydrogen and biomass have lots to offer. Wind power is seen as having the maximum potential in terms of development and investment. It has generated interest in the governments and people because if its cost-effectiveness in producing electricity. Some of the countries which are embracing wind power on a huge level are Spain, Germany, India, America and China. The renewable energy sources are replenish-able and will never run out. The maximum amount of renewable energy comes from sun and the solar energy can be directly used for heating and lighting the houses and even business premises.
Did you know that sun is also responsible for varying patterns of wind, which is then captured by the wind turbine? In present scenario where pollution is at its peak and we are breathing polluted air along with coping with the global warming effects, using renewable energy technology is important as not only it has environmental benefits, it also saves you tons of money.
Renewable energy technologies are clean and have extremely low environmental effect in contrast to the conventional technologies. Most of the homes today use fossil fuels generated grid power as a source of electricity. However, with increased awareness people have started concentrating on solar power systems and wind turbines. The wind turbines are mounted on high tower so as to capture as much wind as possible. The turbine captures wind with the help of blades. Usually 3 blades are present in a turbine. When the wind blows, low pressure is formed just below the blades, which causes the rotor below the turbine to turn.
If you want a detailed plan you can go on the Internet and get one. There are many manuals which have these instructions. Buy that manual which gives clear instructions.