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dpurdy

Wind - Energy Explained, Your Guide To Understanding Energy - Energy Information Administration - 1 views

www.eia.gov/...index.cfm

wind form sustainable

shared by dpurdy on 11 Nov 12 - No Cached
  • Wind is simply air in motion. It is caused by the uneven heating of the Earth's surface by the sun. Because the Earth's surface is made of very different types of land and water, it absorbs the sun's heat at different rates.
  • Wind is a renewable energy source because the wind will blow as long as the sun shines.
wrighteri99

Tidal Wave Energy: New cutting edge technologies - 0 views

www.bionomicfuel.com/-new-cutting-edge-technologies

future change

shared by wrighteri99 on 05 Nov 12 - No Cached
  • Tidal wave energy
  • Environmentally friendly power sources which are clean and do not cause pollution or environmental harm are the key to the future
  • one direction
  • wrighteri99 on 05 Nov 12
     
    What do we have to do to make this resource work for us in the future?
coreyemi99

How is solar energy converted into electrical energy - 0 views

wiki.answers.com/...nverted_into_electrical_energy

convert

shared by coreyemi99 on 13 Mar 13 - No Cached
kenyonlau99 liked it
  • Solar energy is very easyto change to electric energy. All you have to do is to take a solar cell. Put it in sunlight or other such source of light. It will use this light energy and will convert it into electric energy.
  • coreyemi99 on 13 Mar 13
     
    how solar energy is converted into electricity
kennedyeri98

Climate Change: Evidence - 0 views

climate.nasa.gov/evidence

Climate climate change solar

shared by kennedyeri98 on 13 Mar 13 - No Cached
  • evidence that atmospheric CO2 has increased since the Industrial Revolution.
  • been seven cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago
  • proceeding at a rate that is unprecedented in the past 1,300 years.1
charlesjos00

How Long Has Solar Power Been Around? | eHow - 1 views

www.ehow.com/_long-solar-power-around_.html

solar history

shared by charlesjos00 on 13 Mar 13 - No Cached
  • August Mouchout is credited with the creation of the first active solar motor. In 1861, he developed a steam engine fueled completely by the sun.
  • kenyonlau99 on 13 Mar 13
     
    "Ever since ancient Romans installed glass and mica around their southern-facing door entrances, people have been finding ways to harness the power of the sun. From those origins, solar energy has slowly progressed into a viable source for powering your home. Other People Are Reading"
sconzomic99

Sustainable - Definition and More from the Free Merriam-Webster Dictionary - 0 views

www.merriam-webster.com/...sustainable

sustainable

shared by sconzomic99 on 14 Mar 13 - No Cached
  • of, relating to, or being a method of harvesting or using a resource so that the resource is not depleted or permanently damaged
deepat00

Where Does Geothermal Energy Come From - 0 views

www.universetoday.com/...es-geothermal-energy-come-from

geothermal co2 fossil fuels

shared by deepat00 on 11 Mar 13 - No Cached
  • bounadaries and faults are cracks in the Earth’s crust where magma rises near or to the surface. Geothermal plants take advantage of this fact using water heated by this volcanic activity to produce electric power.
  • The best part is that it is clean energy. There is no way it can produce pollution that can harm the environment
  • hardingmar00 on 23 Sep 13
     
    where geothermal energy comes from
boothreb99

Hydrogen's Dirty Secret | Mother Jones - 0 views

www.motherjones.com/...hydrogens-dirty-secret

_ fuel cell pollution co2

shared by boothreb99 on 11 Mar 13 - No Cached
  • boothreb99 on 11 Mar 13
     
    "Such a system, experts say, would effectively eliminate most of the benefits offered by hydrogen. Although the fuel-cell cars themselves may emit nothing but water vapor, the process of producing the fuel cells from hydrocarbons will continue America's dependence on fossil fuels and leave behind carbon dioxide, the primary cause of global warming."
hardingmar00

Geothermal energy in the United States - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...al_energy_in_the_United_States

current geothermal

shared by hardingmar00 on 12 Mar 13 - No Cached
  • knightoli99 on 12 Mar 13
     
    "eothermal energy in the United States continues to be an area of considerable activity. In 2012, the United States led the world in geothermal electricity production with 3,386 megawatts (MW) of installed capacity;[1][2] the largest group of geothermal power plants in the world is located at The Geysers, a geothermal field in California.[3] The United States generates an average of 15 billion kilowatt hours of geothermal power per year, comparable to burning some 25 million barrels (4,000,000 m3) of oil or 6 million short tons of coal per year.[4] Geothermal power plants are largely concentrated in the western states. They are the fourth largest source of renewable electricity, after hydroelectricity, biomass, and wind power. A geothermal resource assessment shows that nine western states together have the potential to provide over 20 percent of national electricity needs.[4][5]"
deepat00

Geothermal Technologies Office: A History of Geothermal Energy in the United States - 0 views

www1.eere.energy.gov/...history.html

geothermal history

shared by deepat00 on 12 Mar 13 - No Cached
  • Archaeological evidence shows that the first human use of geothermal resources in North America occurred more than 10,000 years ago with the settlement of Paleo-Indians at hot springs
  • knightoli99 on 12 Mar 13
     
    "Archaeological evidence shows that the first human use of geothermal resources in North America occurred more than 10,000 years ago with the settlement of Paleo-Indians at hot springs. The springs served as a source of warmth and cleansing, their minerals as a source of healing. While people still soak in shallow pools heated by the earth, engineers are developing technologies that will allow us to probe more than 10 miles below the earth's surface in search of geothermal energy. We invite you to study the timeline of the recent history of geothermal energy in the United States."
sconzomic99

Global Fossil-Fuel CO2 Emissions - 1 views

cdiac.ornl.gov/...tre_glob.html

co2

shared by sconzomic99 on 15 Mar 13 - No Cached
  • Since 1751 approximately 337 billion tons of carbon have been released to the atmosphere from the consumption of fossil fuels and cement production
  • Half of these emissions have occurred since the mid 1970s
adamsaub98

ELI: Energy: Support Materials: Tidal Energy - 0 views

www.ei.lehigh.edu/...tidal4.html

history

shared by adamsaub98 on 12 Mar 13 - No Cached
  • People have harnessed the tides and used its energy for many centuries. Tide mills—which are the precursors to today’s tidal power plants— have great similarity to water wheels. The difference is that water must first be collected from the incoming tide before it can be released to rotate the water wheel.
  • he oldest, excavated tide mill is dated to the year 619.
gazdiknic99

Energy Resources: Geothermal power - 2 views

www.darvill.clara.net/...geothermal.htm

geothermal sustainable pollution

shared by gazdiknic99 on 12 Mar 13 - No Cached
  • Geothermal energy does not produce any pollution, and does not contribute to the greenhouse effect.
  • No fuel is needed.
hayespay99

How long have people been using solar energy - 1 views

wiki.answers.com/...people_been_using_solar_energy

solar history convert form energy

shared by hayespay99 on 12 Mar 13 - No Cached
  • It depends what you mean by "solar energy." Humans have always used solar energy in some sense: to warm themselves, to grow food, etc. However, I'm assuming that's not really what you mean (although it is important to realize that all energy on earth, with the exception of nuclear fission and geothermal, is ultimately driven by the sun's energy -- even fossil fuels, which after all were plants that grew with sunlight millions of years ago). Solar power has been used directly in various forms for over 100 years.
wellsann99

The Most Frequently Asked Questions about Wind Energy - 0 views

www.culturechange.org/wind.htm

fossil fuels pollution

shared by wellsann99 on 12 Mar 13 - No Cached
  • In 1997, U.S. power plants emitted 70% of the sulfur dioxide, 34% of carbon dioxide, 33% of nitrogen oxides, 28% of particulate matter and 23% of toxic heavy metals released into our nation's environment, mostly the air. These figures are currently increasing in spite of efforts to roll back air pollution through the federal Clean Air Act.
  • wellsann99 on 12 Mar 13
     
    wind power technology
sconzomic99

Tidal energy extraction: renewabl... preview & related info | Mendeley - 0 views

www.mendeley.com/...ewable-sustainable-predictable

cost tide sustainable

shared by sconzomic99 on 12 Mar 13 - No Cached
  • The tidal flow of sea water induced by planetary motion is a potential source of energy if suitable systems can be designed and operated in a cost-effective manner
murphymat98

Tidal Energy | Renewable Energy Development - 0 views

renewableenergydev.com/tidal-energy

cost tide

shared by murphymat98 on 12 Mar 13 - No Cached
  • The cost of setting up a tidal power station can be very high, although once in place the operating costs are low. As an example of the cost of setting up, a proposed 8000 MW tidal power plant and barrage system on the Severn Estuary in the UK has been estimated to cost US$15 billion, while another in the San Bernadino strait which would produce 2,200 MW as a tidal fence in the Philippines will cost an estimated US$3 billion.
coreyemi99

What is Solar Energy? - 0 views

www.technologystudent.com/...solar1.htm

form

shared by coreyemi99 on 12 Mar 13 - No Cached
  • Solar power is energy from the sun and without its presence all life on earth would end. Solar energy has been looked upon as a serious source of energy for many years because of the vas
  • amounts of energy that are made freely available, if harnessed by modern technology.
  • coreyemi99 on 12 Mar 13
     
    What solar power is
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