Sustainability

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Self-sustaining energy, also known as sustainable energy, is energy that meets present needs without depleting natural resources for future generations. It focuses on preserving the environment while developing technology in ways that use renewable energy.

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  • What do trees provide?

    Q: What do trees provide?

    A: One of the most important things that trees give people is oxygen to breathe. Trees also give shade, house animals and muffle noise.
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  • How do you dispose of a lithium-ion battery?

    Q: How do you dispose of a lithium-ion battery?

    A: Lithium-ion and other rechargeable batteries should be recycled so that any hazardous waste, including lead acid and nickel cadmium, can be removed from the waste cycle. Federal guidelines consider lithium-ion and nickel metal hydride batteries to be non-hazardous.
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  • Why should we recycle metals?

    Q: Why should we recycle metals?

    A: Recycling metals offers many benefits, including conserving natural resources, reducing emissions and creating new jobs. Forbes reports that recycling metals supported over 450,000 jobs in the United States as of 2011, generating over $90 billion annually.
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  • What would happen if people did not recycle?

    Q: What would happen if people did not recycle?

    A: Without recycling, Earth's natural resources would diminish even more quickly than they already do from human activity. Using items made from recycled material, such as paper, helps prevent deforestation. Recycling also reduces the amount of trash cluttering the planet.
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  • What is hydroelectric energy?

    Q: What is hydroelectric energy?

    A: Hydroelectric energy converts the kinetic energy of flowing water into electricity using a turbine. Water flows through a channel, usually carefully regulated as part of a dam spillway, and it turns the blades of the turbine. As long as water continues to flow steadily, the turbine produces a steady stream of electricity. The U.S. Geological Survey Science School states that 19 percent of the world's electricity comes from hydroelectric energy.
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  • How is coal used by humans?

    Q: How is coal used by humans?

    A: Humans use coal in many ways, including as a fuel and as a source of carbon. As a solid fuel, coal burns to provide heat from stoves, furnaces and boilers as well as energy to supply electrical generating plants. Metal refiners use coke, a solid residue from low-sulfur bituminous coal, in purifying metals in blast furnaces.
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  • What is self-sustaining energy?

    Q: What is self-sustaining energy?

    A: Self-sustaining energy, also known as sustainable energy, is energy that meets present needs without depleting natural resources for future generations. It focuses on preserving the environment while developing technology in ways that use renewable energy.
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  • What can I do to help save the environment?

    Q: What can I do to help save the environment?

    A: Eliminate paper. Easing up on the use of paper and paper products will help with one of the biggest landfill culprits. Good places to start include replacing paper gift wrapping with fabric or used grocery bags, using glassware instead of paper plates, bringing reusable shopping bags for use at the store, and replacing paper towels with washable hand towels.
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  • Q: How long should 100 gallons of propane last?

    A: Propane usage depends on the nature of use, such as appliances, furnaces and fireplaces, as well as the climate. Each gallon of propane provides 91,547 British thermal units, or BTUs. Appliances can vary a great deal from about 25,000 BTUs per hour to more than 400,000 BTU per hour.
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  • Q: What is Agenda 21?

    A: Agenda 21 is a United Nations plan of action that provides a guideline to manage human impact on the environment. Agenda 21 provides actionable plan recommendations that is to be implemented by all governments, systems and groups under the United Nations umbrella.
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  • Q: How is wind energy obtained?

    A: A wind turbine harnesses wind energy by converting the kinetic energy obtained through the rotation of the blades into mechanical energy. It accomplishes this by using a system comprised of a generator, gears and shafts. By means of a network of transmission lines, the turbine sends electricity to the homes of consumers.
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  • Q: What are the major points to transition to a sustainable future?

    A: According to the Sustainability Laboratories, there are five core principles vital to the achievement of a sustainable future for the world. They are the material, economic, social, life and spiritual domains. In order for the programs seeking to create a sustainable future to succeed, the sustainable programs being implemented should have a balance of activities and policies that cover all the five core principles, as they are interdependent.
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  • Q: How do you make a homemade compost bin?

    A: To create a simple home compost bin, use either wire mesh or snow fencing material to create a holding unit. Approximately 10 feet of wire mesh yields a bin 3 feet in diameter, while 13 feet of snow fence creates a 3-square-foot bin.
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  • Q: How do you melt aluminum cans at home?

    A: Instructables explains that aluminum cans can be melted using a propane torch. A steel drum or a canister is needed to act as a crucible, which should be insulated and stabilized by sand. For maximum safety, all the work should be done outside on a flat, fire-retardant surface.
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  • Q: Why is recycling important?

    A: Recycling is important for making the environment a cleaner place, conserving materials, saving energy and reducing the amount of garbage in landfills. One of the most important benefits of recycling is the impact it has on the Earth. Recycling different materials helps the environment by reducing the use of natural resources. For example, recycling paper goods reduces the number of trees cut down each year.
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  • Q: What are disadvantages of hydroelectric power?

    A: Two primary disadvantages of hydroelectric power include the high investment cost and its reliance on precipitation. Hydropower facilities can have a negative impact on the environment, despite not causing pollution, including the loss of fish habitats, displacement of the local population and the inundation of surrounding land.
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  • Q: What is a self-sustaining ecosystem?

    A: A self-sustaining ecosystem is an ecosystem that does not need to make any exchange or have contact with an outside or adjoining ecosystem. These are most commonly seen as bottle ecosystems or glass jar/dome ecosystems. These glass jar ecosystems are often given as gifts.
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  • What are the pros and cons of using solar panels?

    Q: What are the pros and cons of using solar panels?

    A: Some of the benefits of using solar panels for energy generation include the fact that solar energy is a renewable resource, the abundance of solar energy that reaches the earth and reduced electric costs. Negatives of using solar panels include the expense of installing solar panels, the costs of storing solar energy and limited access to solar energy at night or during overcast periods.
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  • Q: How do you make biodiesel at home?

    A: Make biodiesel at home using vegetable oil, methanol and sodium hydroxide, commonly known as lye. While biodiesel is not toxic, some of the inputs and intermediate products of biodiesel production are toxic or dangerous to handle. Always wear appropriate personal protective equipment, including gloves, respirators and eye protection.
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  • Q: Why is sustainable development important?

    A: Sustainable development is a worthy principle that can be applied at every level of society, as it demands that we meet the needs of our generation without compromising the needs of the next. Sustainable development is fiscally responsible, drives intellectual and technological innovation, and demonstrates humanity's pursuit of excellence.
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  • Q: Where can you find information on cardboard recycling centers and the value of cardboard?

    A: Find information about cardboard recycling centers and values on sites such as RecycleFinder.com, Earth911.com, RecyclingCenters.org and AmericaRecyclesDay.org. Many local governments also offer recycling information on their websites as well.
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