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 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 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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  • 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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  • 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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  • 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 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: Can concrete be recycled?

    A: Concrete can be recycled by breaking up or crushing the concrete for use in other concrete applications. Recycled concrete uses include bulk fill, road construction, bank protection, filler in drainage structures and aggregates to produce new concrete.
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  • Are old VCR tapes recyclable?

    Q: Are old VCR tapes recyclable?

    A: VHS tapes can be recycled if taken apart. The hard outer plastic casing of the tape can be recycled, but the insides cannot be.
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  • Q: What are some of the recycling codes for polymers?

    A: The Society of Plastic Industry designed the resin identification coding system to identify plastic type for recycling purposes, these are coded one through seven and printed on the object inside a recycling symbol. The numbers one through six identify specific plastics, and seven is used for miscellaneous.
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  • How does one recycle pallets for cash?

    Q: How does one recycle pallets for cash?

    A: Recyclers find used pallets from various sources, such as local businesses and landfills, and sell them to pallet recycling centers or directly to manufacturing companies. They must repair, sort and unload their own pallets. Some jurisdictions disallow cash payments but provide alternatives by direct deposit or check.
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  • Q: What are the pros and cons of clearcutting?

    A: Advantages of clearcutting include the ability to manage forests economically, the creation of sunny spaces for sun-loving plant species, and the development of forage habitats for deer, elk and wildlife. Disadvantages include the disruption of existing ecosystems, the unsightly appearance and increased risk of erosion.
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  • Why is solar energy good?

    Q: Why is solar energy good?

    A: Solar energy offers many advantages, including lower electric bills, increased home value and a decreased carbon footprint. According to SolarWorld-USA, homeowners who install solar panels on their homes save an average of 50 percent off of their electric bills. Using solar energy is also environmentally friendly since it comes directly from the sun and does not produce any harmful waste products.
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  • Q: What is the primary goal of conservation biology?

    A: The primary goal of conservation biology is to address the Earth's loss of its biological diversity. It focuses on advancing the practice of conserving this diversity and preventing further losses.
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  • Q: How do you recycle VHS cassettes?

    A: Recycle VHS cassettes by sending them to a company that deals with recycling e-waste. While these companies do charge for the service, they also offer a per pound rate and take other electronics for recycling as well.
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  • Q: What are the benefits of purchasing a home solar power system?

    A: The two major benefits of purchasing and installing a home solar power system are economical and environmental. The latter benefit is due to solar power being a zero-carbon emission form of electrical generation. Economic benefits of solar power include lower utility bills, surplus energy sell-back and increased property values.
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  • What are the advantages and disadvantages of the Green Revolution?

    Q: What are the advantages and disadvantages of the Green Revolution?

    A: According to Coolgeography, the Green Revolution is advantageous because it has enhanced yields, improved resistance of crops to diseases, expanded the export of cash crops and created massive job opportunities within the industrial and agricultural sectors. The disadvantages of the Green Revolution include the inability of poor workers to afford expensive machinery and fertilizer, replacement of food crops with cash crops and contribution to unemployment among manual workers.
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  • Q: What organizations offer free trees to the public?

    A: The Arbor Day Foundation, MillionTreesNYC and TreePhilly are some organizations that offer free trees to the public. Free tree programs are available in many major cities throughout the United States via the local or city government.
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  • Q: What type of energy does the sun produce?

    A: The sun produces heat and electromagnetic radiation as a product of the fusion of hydrogen nuclei into helium nuclei. The radiation produced covers most of the electromagnetic spectrum, including visible, ultraviolet and infrared light, as well as X-rays and radio waves.
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  • Q: How many types of solar panels exist?

    A: There are four types of solar panels commonly used: single silicon, multi-silicon, BIPV and solar thermal panels. Each offers benefits and disadvantages.
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