Through an interactive slideshow, explore natural and artificial light and the choices we can make to power down, conserve energy and stay healthy.
Their roots grow down (or laterally) and the aerial parts grow towards natural or artificial light. The process of photosynthesis uses light energy to turn carbon dioxide and water into sugars, which the plant uses. Essentially, the plant needs to find light to get food.
Although plants will grow under artificial light, studies have shown that they prefer natural light which has a perfect balance of wavelengths necessary for plant growth. Use of artificial light (greenhouses and in underground spaces) is a growing industry. Benefits include the ability to grow local food throughout the year, however, there are impacts on energy, and light pollution.
Natural light can benefit our health and save energy. Natural light:
LED light bulbs have a long lifetime and use 75% less energy than incandescent light bulbs. There is also a range of colours available for LED bulbs, ranging from a soft yellow to a bright daylight, which can provide an alternate to natural light. Go here for information on LED lighting.
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