Colour Your English - 2008
Open Camera
Green energy
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Descripción de video:
El video muestra distintos ejemplos de energía alternativas: aerogeneradores, central solar, placa solar sobre terraza. Finalmente se realiza una visita a una estación de biocombustible.Texto asociado a audio:
Green energy is energy that comes from resources that nature can replace, like wind, sunshine and plants. Coal and natural gas are fossil fuels, and these can't be replaced. It takes millions of years to form them. Fossil fuels also cause pollution. Green energy is also called "clean energy" because it doesn't pollute the air or the water. Wind mills use the wind to create electricity. This is a wind farm with many huge wind turbines. Wind farms are built in flat, open areas where there is strong and constant wind. They are now very common in our landscapes.
Solar power is the energy that comes from the sun. We can convert this energy into other forms of energy, like heat and electricity. These are solar panels, and they generate solar energy for large-scale production. We can also use solar collectors for heating water and air at home. Many family houses have solar panels on their roofs, and even hotels and other big buildings use solar power.
Biodiesel is an example of biofuel. Biofuels come from biomass, and biomass comes from plants. Oil from sunflowers, olives, soya or colza is transformed into fuel for transportation. We can use it in cars and lorries and we help the environment because they don't cause so much pollution.
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