* A PC monitor left on all night uses enough energy to print with laser 800 of A4 pages.
* If every house from Great Britain would put even a light bulb that saves electricity, it would save enough electricity to feed 3 million homes for 1 year.
* 25% of the population uses 80% of electricity available.
* A light bulb that saves electricity, reduce electricity consumption by 80% compared to a normal light bulb.
* TV, printer, computer or other electronic device left in stand-by consumes between 40% and 70% of the energy they would consume if it was lit, which means an unnecessary extra expense and a waste of energy.
* A laundry its reduce electricity consumption by one third if it wash at 40 degrees C instead of 60 degrees C.
* Heat-insulated houses require less heat in the winter. The bare walls are to lose 35% of heat, while the other 25 percent are lost due to a bare roof.
* Reduce the temperature by just one degree Celsius may shrink heating bill by 10%.
* Seven of every ten trips in the UK are made with car.
* In the UK, at the peak, nearly one in five cars carrying children to school.
* The proportion of children between 5 and 16 years who go to school by car rose from 16% in 1985 to 28% in 1996 / 8, while the use of bicycle in transport has fallen from 4% to 1% and walking became less frequent, decreasing from 59% to 49% in British preferences.
At a conference with subject climate change, science Austrian man Anthony Patti said that the European target to achieve by 2020 a rate of 20% of the energy required altenative sources can be achieved by installing in North Africa a network of solar panels on an area of about 80 thousand square kilometers.
Solar power uses mirrors to focus the Sun’s rays at a thin pipe containing either water or salt. The rays boil the water or turn the salt molten and the energy is extracted by using the heat to power turbines.
Trials of concentrated solar power are being planned for Egypt, Morocco, Algeria and Dubai. Libya and Tunisia could also be considered as sources of European electricity.
Receiving energy from North Africa would, the conference heard, reduce dependence on fossil fuels, which drive climate change by emitting carbon dioxide. The renewable source of energy would also mean that Europe relied less on Russia and the Middle East for fuel.
Photovoltaic panels systems are able to transform solar energy directly into electricity through a complex chemical process. This way of producing electricity is environmentally friendly.
How it works:
Technology to generate energy photovoltaics uses as the basic element semiconductor cells, sometimes called wafers. The principle consists in the electric current generation between two electrodes attached to a solid or liquid system , under the direct action of sunlight. Almost all photovoltaic cells are made from silicon of different types, with a yield between 7 % and 18%. To produce electricity, cells are being coupled (between 36 and 72 ) in a panel . Practically all devices incorporate photovoltaic semiconductor over which the solar brightness is transformed into electricity. The power differs depending on how they are assembled semiconductor cells, but also the intensity of sunlight.
The system comprised of a battery that will store enough energy to survive even a long winter nights. In favorable environmental conditions, a part of the energy is consumed and the excess is stored in batteries and is consumed during the night or in unfavorable weather.
Disadvantages: No Disadvantage In This System.
So this is another step towards an favorable environment to life.
How can we reduce pollution of the planet? The answer is recycling materials. It is one of the easiest ways to protect the planet against pollution. Each of us can participate in the recycling process. Unlike the other methods of greening the recycling involves less effort on the part of our consumers. Our contribution to the method of recycling consists in sorting household waste before being disposed of in containers. So to the consumer involves recycling of all just a little attention to sorting waste. Recycling works by the''nothing is lost, everything is reuse''. This is theory, but in practice ...
The main types of materials that can recycling are: concrete products, batteries, biochemical compounds, electronic devices, ferrous and nonferrous metals, glass, paper, plastics, textile matermaterials.
Why should recycled materials? Here are some environmental benefits of recycling endowment:
- Prevents the destruction of natural habitats of animals, biodiversity;
- Help to conserve natural resources; - Reduce the number of pollutants in the air and water;
- Reduce the CO2 emissions created by extracting and processing minerals;
Besides the benefits that recycling has on the environment and there are economic benefits:
- The actual costs of designing a product are much higher than the costs recycling;
- Creation of new jobs;
- Reusable assets are better built and can appreciate the value of time;
So, by using waste instead of raw materials not only preserve the environment and natural resources but also reduce pollution and energy demand. Our participation in recycling is imperative and necessary.
