Several energy-efficient solutions (Part 2)

     6. Don’t overdo the heater and air conditioner. A 2 degree reduction in the heater in winter will help reduce 6% of CO2 emissions, equivalent to 191 kg of CO2.

7. Regularly clean and replace the filter. Energy is lost when air conditioners and heaters have to work “harder” to draw air through a dusty filter. Cleaning the filter will save 5% of energy and reduce 80kg of CO2 emissions.

     8. Use energy-saving compact bulbs for the best light efficiency. Although the initial investment cost is higher than conventional bulbs, compact bulbs in the long run will be more economical because they only use of the electricity and have a lifespan of 8-12 times longer than conventional bulbs. provides equivalent brightness. When lighting a normal bulb, only 10% of the electricity is used to light up and the remaining 90% of the electricity is only used to make the bulb heat up.

     9. Insulate your hot water heating system at a cost of only $ 10- $ 20 but will save 450 kg of gas for hot water heating

     10. Install a nozzle to reduce water flow to limit hot water use. It costs about $ 10- $ 20 but annually reduces about 650 kg of CO2 emissions and saves 200 kg of gas.

     11. Self-conditioning indoor / apartment. Seal up air leaks on windows or doors. This costs only about $ 1 per window and will reduce 2,500kg of CO2 emissions. Ask your supplier to do an energy audit to see if your home is energy efficient or not. This service can be either free or for a very small cost. Make sure they check your home heating and air conditioning system as well.

     12. Walk, bike, carpool or use public transport whenever possible. For example, if your car travels 30 km and consumes 1 gallon of gasoline, each year you reduce 3200km of travel will reduce 4000kg CO2 per year.

Alternative energy sources in the future (Part 2)

On the surface of the earth there is a huge source of heat that humans have not exploited and utilized, one of which is heat from volcanoes.

The researchers believe that people can use this abundant source of heat to generate electricity for activities in public places, such as lights on the streets. This is a source of clean, abundant energy and promises to be exploited in the near future.

Energy from wind

Compared with large-scale “windmill” fields, a small-scale wind power generation system can provide enough electricity for each household. The average mini windmill system can produce 1-10kw of electricity, enough to provide the amount of electricity for lighting and other electric devices in a house.

America is one of the countries using wind energy the largest in the world today. Windmills in the US provide about 18,000 megawatts of electricity to at least 5.4 million households living in the country. According to estimates of the US energy agency, by 2030, the windmills will provide an amount of electricity accounting for about a fifth of the electricity that the country uses. Currently in the world, many countries are focusing on exploiting this energy source. In addition to the US, Denmark is also a country that uses a large amount of wind power with 20% of the energy that its people currently use is supplied by windmill fields.


There are two ways in the world to collect solar energy: mirror systems that focus sunlight to heat water to create steam that drives generating turbines, and a second way to use solar panels is to convert heat energy into electricity. Both methods are currently being used and are very effective.

Nuclear energy

The developed countries in the world are currently using this type of energy mainly and in the future, nuclear energy will still be the number one priority for many countries in the world. In the US alone, this country is currently planning to build 100 new nuclear reactors to power one-fifth of the nation’s population.

The pros and cons of wind energy (Part 1)

All renewable energy sources are generated by heat generated by solar radiation. Wind is also a phenomenon caused by global warming of the atmosphere.

Sunlight on the surface of the earth unevenly makes the atmosphere, water and air unevenly heated. As a result, the hot air will move up, the cold air will go down. The change in position between hot air and cold air will form wind.

Tiềm năng phát triển điện gió

Wind is a renewable source of energy and its use does not produce toxic substances such as fossil fuels. This is one of the most effective forms of energy, it can become one of the main energy sources for future generations. Although wind energy has many advantages, it also has its own limitations.

Part 1: Advantages

1. Wind energy is a renewable energy source, while coal and wood are non-renewable energy sources. One thing is certain, wind energy will always exist. If greater efforts are made to bring wind energy into exploitation, it will reduce the use of non-renewable sources, which exploiting these sources will adversely affect the next generation.

Ưu điểm của năng lượng gió đối với người sử dụng |

2. Global warming is one of the biggest challenges for all humanity. According to published reports on this issue, an urgent need is to reduce emissions of pollutants in the Earth’s atmosphere. Wind energy is a great alternative to our energy needs, because it is not as polluting as large as fossil fuels.

3. A large area of ​​land may need to be cleared to build a power plant. But with a wind power plant, you only need a small area to build. After installing turbines, the area can still be used for farming or other agricultural activities.

4. One of the biggest advantages of wind energy compared to other renewable energy sources is the cost effectiveness. There are no costs associated with buying and transporting fuel into wind turbines, such as coal-fired power plants. In addition, with advances in technology, wind power will become cheaper, thereby reducing the amount of capital that countries have to spend to meet energy needs.

5. Developing countries lack the infrastructure necessary to build a power plant, which could benefit from this source of energy. The cost of installing a wind turbine is lower than that of a coal power plant, countries that do not have a lot of funding, can choose to use the option with high cost efficiency while still meeting the power demand.

Effective Ways to Stop Using Single-Use Plastic (part 1)

The proliferation of single-use plastic all over the world is accelerating climate change and should be urgently halted. It is clearly proved that plastic contributes to greenhouse gas emissions at all stages of its lifecycle, from its production to its refining to the way it is a waste product. Therefore, we all need urgent action to stem production and flow of single-use plastic. There are a lot of effective ways to stop using single-use plastic to protect the environment.

1. Use Reusable Bags

There are too many plastic bags that end up in our oceans and marine life is becoming endangered and even dying because of them. We hope that plastic bags will be eliminated all together as soon as possible. Consider bringing reusable bags with you, keeping them in your purse, car, house and office. Some grocery stores offer quicker check out lines for customers who bring their own reusable bags. There’s no need to put your tomatoes in a separate bag from your avocados.

2. Use Reusable Straws, Say NO to Plastic Straws

Not using plastic straws is a very simple and small change that you can contribute to make a difference. If you really need a straw in a certain case, use reusable metal straws, or paper straws instead of plastic straws. There are metal straws that are sold in packs, so you can keep one in your purse and leave the others at home, car, and office.

3. Use Reusable Water Bottles

Plastic water bottles are a threat to our oceans and the Amazon Rainforest. Moreover, drinking from single-use plastic water bottles is also very toxic and harmful for our health. There is multiple choices of reusable water bottles in various shapes and sizes and there is no reason for you to keep using plastic water bottles.

4. Ice Cream Cones Instead of Cups

Make sure to choose cones instead of cups when going out for ice cream. Ice cream cups are a unnecessary use of plastic that takes years to fully decompose.

Tips for Hosting an Eco-Friendly Sporting Event (part 1)

Although there are various models, approaches, and certification systems, the most important elements of an eco-friendly event are reducing carbon emissions and energy use, conserving water, minimizing waste headed to a landfill and maximizing recycling opportunities, building a positive legacy within the community, providing access to all, and supporting local businesses.

So, what does an eco-friendly sporting event look like? How does it work? Let’s consider the following tips for hosting an eco-friendly sporting event.

Green Basics: A Little League tournament or a local high-school football game are great ways to begin cultivating new sustainable options and discovering local green resources. There are a lot of simple things that sports planners can do to produce more eco-friendly events. The first step is to call for agreement from your board, organization, and/or stakeholders so that your efforts are supported by the overall event management system.

Rethink Waste: Find effective ways to reduce or eliminate plastic, paper, and packaging waste. One of the easiest ways with the greatestt impact is to default to double-sided printing and use recycled paper in printers and copiers as much as possible. You can go further by opting to replace programs, flyers, and paper tickets with social media, Web sites, electronic ticketing, and even mobile applications. Choose recycled or biodegradable materials for items such as lanyards, T-shirts, and food service-ware. Provide water stations for fans to serve condiments in bulk and fill reusable water bottles in order to reduce individual packaging waste. Place clearly marked recycling bins in easily visible and convenient locations throughout the sports venue.

Reduce Emissions: Transportation and energy use are the two major sources of greenhouse gas emissions for most sporting events. Utilities across the country can be approached as a sustainable sponsor and offer renewable power options for customers. In addition to dercreasing overall carbon emissions, utilizing mass transit can help reduce local traffic congestion. Use low-carbon fuels like biodiesel, hybrid, ethanol, or all electric vehicles whenever possible. Moreover, offering corral parking or bike valet also encourages more bicycling to the event.

Greywater Reuse: Types of Simple Systems


  1. From the Washing Machine

Typically, the washing machine is the easiest source of greywater to reuse because its greywater can be easily diverted without cutting into existing plumbing. Each washing machine has an internal pump which automatically pumps out the water. You can use that to pump the greywater directly to your plants.

  • Laundry Drum:

If you don’t want to spend much money on the system or have many hardscapes (patio/concrete) between your house and the area to irrigate, you should use a laundry drum system.

Washing water is pumped into a “drum,” temporary storage or a large barrel called a surge tank. The water at the bottom of the drum drains out into a hose which is moved around the yard to irrigate. This is the easiest and cheapest system to install, however, requires constant moving of the hose for the system to be effective at irrigating.

  • Laundry-to-Landscape:

If you’re looking for a system which takes very little maintenance and gives you flexibility in the plants you’re able to irrigate, you should use the laundry-to-landscape system invented by Art Ludwig.

This system doesn’t alter the household plumbing: the washing machine drain hose is directly attached to a diverter valve which switches the flow of greywater between the septic/sewer and the greywater irrigation system. This system is easy to install, low cost and gives flexibility for irrigation. Commonly, this is the perfect choice to start when choosing a greywater system.

  1. From the Shower:

The shower usually produces a lot of relatively clean water and is also a great source of greywater. To have a simple but effective shower system, you should use a gravity-based system without a pump. If your yard is located uphill from the house, you’ll need a pumped system.

  • Branched Drain: This system was also invented by Art Ludwig. In this system, the water is divided into smaller and smaller quantities by using a plumbing fitting which splits the flow. Each branch’s final outlet flows into a mulched basin. Branched drain systems require time to install, but once finished, they require only little maintenance and work well for the long term.


Sports & Recreational Activities Damaging to the Environment


Off-Road Vehicles

For many backcountry hikers, cross-country skiers, and bird-watchers aggravation is spelled “ORV”. Off-road vehicles crush vegetation, shatter the wilderness silence, leave rutted trails, terrify wildlife, and cause erosion. The number of high-octane thrill-seekers which are blazing their trails in four-wheel-drive trucks and cars is increasing day by day along with dune and swamp buggies, snowmobiles, motorcycles, and fat-tired tricycles, all of which are called all-terrain cycles (ATCs). Sales of these ATCs have risen dramatically.

Current Regulations

There are a number of Executive Orders which govern off-road vehicle use on BLM lands and National Forests. Executive Orders 11644 (signed by President Nixon in 1972) and 11989  (by President Carter in 1977) were issued to “ensure that the use of off-road vehicles on public lands will be controlled and directed so as to protect the resources of those lands, to promote the safety of all users of those lands, and to minimize conflicts among the various uses of those lands.”

These Orders require the agencies to monitor the effects of off-road vehicle use and to immediately close the trails or areas to off-road vehicle activities if their use is determined “will cause or is causing considerable adverse effects on the soil, vegetation, wildlife, wildlife habitat or cultural or historic resources of particular areas or trails of the public lands.” Executive Orders 11989 also authorized the federal agencies to adopt a policy which closed all areas to off-road vehicle use unless specifically designated open.

The Solution

It is necessary to place reasonable limits on off-road vehicles use which can make enormous impacts on public lands. There are four regulations to manage off-road vehicles:

  • Limit off-road vehicle use to designated trails and roads; prohibit cross country travel.
  • Designate off-road vehicle routes only where the use of a route will not cause negative environmental impacts.
  • Prohibit off-road vehicle use unless enforcement and monitoring are fully funded and implemented.
  • Prohibit off-road vehicle use in proposed roadless areas and wilderness areas.

About Greywater Reuse


Greywater is gently used water from your showers, tubs, bathroom sinks, and washing machines. It is not water which has come into contact with feces such as water from the toilet or from the washing diapers.

Greywater may contain traces of food, dirt, hair, grease, and certain household cleaning products. Although greywater may look dirty, it is a safe and beneficial source of irrigation water. Remember that if greywater is released into lakes, estuaries, or rivers, it becomes pollutants, but to plants, it is valuable fertilizer. Besides the obvious benefits of saving water and even money on your water bill, reusing greywater keeps it out of the septic or sewer system, thereby reducing the chance it pollutes the local water bodies. Reusing greywater for irrigation reconnects our backyard gardens and urban residents to the natural water cycle.

The most simple way to reuse greywater is to directly pipe it outside and use it to water fruit trees or ornamental plants. In addition, greywater can be used to irrigate vegetable plants because it doesn’t touch the edible parts of the plants. In each greywater system, it is necessary to use “plant-friendly” products, those without much boron, chlorine bleach, or salt. The build-up of boron and salt in the soil can damage plants.

Basic Greywater Guidelines

Greywater is different from fresh water so it requires the different guidelines to be reused.

  1. Don’t store greywater for more than 24 hours. If you store greywater, its nutrients will break down and create bad odors.
  2. Minimize contact with greywater. Greywater might contain a pathogen if the feces of an infected person got into the water, therefore, your system should be designed for the greywater to soak into the ground and not be available for either people or animals to drink.
  3. Keep your greywater system as simple as possible, avoid pumps and filters which need upkeep.
  4. Install a 3-way valve to easily switch between the system and the septic/sewer.
  5. Match the amount of greywater that your plants will receive from the system with their irrigation needs.

6 Worst Sports for the Environment


Modern life is really hard. Without exercise, our health suffers. But what will we do if our favorite physical activities hurt the environment as well? However, fortunately, most of these sports are only harmful to the environment at the professional level, or in places where a lot of people are participating at once. The below sports are six of the most harmful sports to the environment:

  1. Skydiving

Skydiving doesn’t at first seem like to cause a large environmental problem. It’s the activity which people do once for every couple years, rather than every day. However, there is such a thing as competitive, professional skydiving, as well as each plane requires constant refueling. If you really enjoy, instead of skydiving, try the base-jumping, which is more sustainable and less harmful to the environment.

  1. Football

Football is one of the world’s the most popular sports. Therefore, the players are traveling around the planet, burning lots of fossil fuels along the way. Though, backyard pick-up games are still fine.


It isn’t too surprising to include NASCAR into this list. Not only do the cars emit air pollution, but the events drawing large crowds of people also drive.

  1. Skiing and Snowboarding

Perhaps skiing is one of the best sports in the world. However, resorts are often not easy to get to and a lot of energy and material goes into making gear. Fortunately, many resorts have been switching over to use renewable energy, as a result, the skiers will be able to indulge guilt-free.

  1. Drag Boat Racing

There may be just a few drag boat racing enthusiasts and perhaps they are far between, but surprisingly, there are special boats which are designed just for this purpose. In order to achieve maximum speed, they also emit a lot of pollution.

  1. Golf

Golf is one of the most beloved sports in this list and might be a tough pill to swallow for someone. Golf courses use up to 4 billion gallons of water every day, and their increasing popularity means that more and more of them are being built every day.

Amazing Ways to Help Protect the Environment (p3)

  1. Capture rainfall in barrels and use this water for irrigation of your garden or to wash garden equipment.
  2. Instead of turning up the heat in winter, wear a sweater and wooly socks.
  3. Use heavy thermal drapery instead of light curtains in cold months to keep warmth inside your house.
  4. Clean shutters closed to keep your house cool on hot days so that you don’t have to rely on air conditioning so much.
  5. Unplug the TV and other electronic appliances to avoid creating a slow electricity drain due to their LED lights constantly on. While you’re sleeping, you have no need to know the time on your cable box.
  6. Clean up spills and countertops with cotton kitchen towels instead of using paper towels.
  7. Instead of an electric-powered or gasoline mower, consider using a reel mower to cut the grass. Reel mowers use only muscle, not any other power sources. They also help to decrease noise pollution.
  8. Buy foods from local farmers as much as possible. Transporting and refrigerating foods across the highways costs highly to the environment.
  9. Avoid using the pesticides because after entering the soil and groundwater, they will end up killing the soil nutrients. Instead of using them, consider natural gardening techniques to keep pests and weeds at bay.
  10. Avoid buying individually wrapped items such as cookies, candies, or medicine. The more wrapping, the more harmful it is to the environment.
  11. Instead of electric tools, use manual ones as much as possible. Instead of miter or chain saw, use a hand one.
  12. Instead of an electric powered or battery alarm clock, use an old-fashioned wind up one.
  13. Buy products which are less packed to cut down on packaging materials.
  14. Instead of getting a plastic bag from the dispenser whenever you go shopping, place your produce directly into your personal reusable bags or into your shopping cart.