According to its recently published "Special Report Renewable Energy Sources", (9 May 20011) the IPCC views the following sources as "renewable":
Direct solar energy
Ocean energy
Wind energy
Hydropower
Geothermal Energy
Biomass
According to the IPCC report, the by far largest "renewable" energy source is biomass, which accounts for 79% of all renewable sources, which the IPCC breaks down into "traditional" and "modern" biomass and states that the most widespread apllication of "traditional" biomass is in developing countries.
According to the IPCC, "traditional" biomass accounts for 41% of "renewable" energy and "modern" biomass 38%.
And herein lies a HUGE problem for the IPCC (an inconvenient truth if you like): According to their OWN definition, provided in the report, traditional biomass IS NOT sustainable and therefore by definition, not renewable!
"Traditional biomass is defined by the International Energy Agency (IEA) as biomass consumption in the residential sector in developing countries and refers to the often-unsustainable use of wood, charcoal, agricultural residues, and animal dung for cooking and heating. All other biomass use is defined as modern" (page 4 "Special Report Renewable Energy Sources").
By this definition, the IPCC considers cooking on a campfire (in what is effective and abject poverty) a "renewable" energy!
The report also states: "As well as having a large potential to mitigate climate change, RE can provide wider benefits. RE may, if implemented properly, contribute to social and economic development, energy access, asecure energy supply, and reducing negative impacts on the environment and health[9.2, 9.3]" (page 3 "Special Report Renewable Energy Sources") but fails again to mention that its largest "renewable" energy source contributes to climate change by releasing black carbon into the atmosphere and contributing to deforestation in an extremely fragile eco-system (not to mention the health issues casued by smoke inhalation).
In the short term and financially it is not. However consideration should be made for a longer view.
he thinks it is a great idea
* Solar energy (direct or concentrated) * Wind energy * Hydroelectric energy (from rivers) * Wave energy * Tidal energy * Geothermal energy (from underground heat) * Biofuels (Although from an environmental point of view they can quite damaging)
Solar energy is considered renewable because the Sun's rays will never run out. There will be a constant supply of it in our lifetime. Solar energy is free, clean (no carbon dioxide pollution) and green. Non renewable sources are things that will run out such as fossil fuels (coal, oil and natural gas).
One can view boards of gas prices from the following sources: Oil Price, Ontario Energy Board, Gas Buddy Prices, Energy Shop, En Bridge Gas, Price of Gas, to name a few.
With the exception of geothermal and tidal energy, all other renewable energy sources ultimately derive their energy from the Sun. Because the Sun's light is essentially waste energy, its use is free. Tidal energy very slowly depletes the rotational energy of the Earth, and transfers some angular momentum to the Moon. In theory, using tidal energy over a very long time could slow the rotation of the Earth and fling the Moon further out into space. However, this energy use would likely be very small compared to the normal action of friction on the tides, and would be essentially harmless, as the rotation of the Earth will slow and the Moon will move further out into space, regardless of what Humans do. Geothermal energy use also comes with very long-term problems. The Earth's crust acts to insulate the magma beneath it, but drawing geothermal energy bypasses the insulating effect and cools the magma. Long term use would see a thickening of the crust at the location of the heat removal. Again, this will likely be a very small effect due to moving currents beneath the surface, and re-heating of the magma by the Earth's core. Nuclear energy is not considered renewable, because there is a finite supply of Uranium. It is possible to send near-Sun satellites containing transmutable elements to collect radiation, and return fissile materials to Earth, but that is a very expensive form of solar energy. Using a long-term view of the Earth, even coal would be considered a renewable energy source, except that human energy use exceeds its rate of formation.
Answer AHistorically, coal was the main energy source for the industrial revolution. Then oil and natural gas were developed. Hydro power has also provided a traditional energy source. These are all what can be called 'conventional'. Answer BThere is no widely approved definition for conventional (or traditional) energy sources. However, it could be claimed that conventional energy sources are those that have been used over enough time periods to accumulate good experience with its use. Under this view point it could be assumed that fossil fuels (coal. oil, natural gas), hydro power, and nuclear fuel are conventional energy sources.
One can view the Washington Post on multiple sources of media. These sources of media include their website, their newspaper, or a mobile device. These are all great choices to view the Washington Post.
Some people view solar panels and wind mills as renewable energy.The main renewable fuels are biodiesel and wood.You can use a wood burning stove to heat your home.You can also use a windmill to produce electricity for your home.
BIOS controls energy star monitors settings which you can view and change.
BIOS controls energy star monitors settings which you can view and change.
In cellular respiration, ATP is created. This energy is created with energy from other energy sources, and is used more readily by the rest of the cell.