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Sep.6,2011
The green-house effect is the most important cause behind global warming. In fact global warming is known as the greenhouse effect. This phenomenon leads to an increase in the Earth temperature due to certain gases like CO2, nitrous oxide, and methane. These gases trap the energy from the sun and without them the heat would go back into space and Earth would be one massive iceberg. Since these gases warm the Earth, they are known as greenhouse gases.
In the last couple of decades, people have started using glass houses to grow plants in winter and these are called greenhouses. Typically, these houses will trap the heat from the sun. The glasses in the greenhouse let the light through and at the same time prevent the heat from escaping.
As a result, the greenhouse heats up to keep the plants alive in the winter. Similarly, the greenhouse gases in the Earths atmosphere work like the glass and prevent the heat from escaping. The sunlight enters piercing through the cloud of greenhouse gases and when it reaches the Earths surface, it is absorbed by land, water, and air.
After absorption the same energy is sent back into the atmosphere. Some of it remains trapped in the atmosphere due to the greenhouse gases and this energy makes the Earth warmer. Since there has been an increase in CO2 emissions in the last couple of decades, more and more heat is being absorbed in the atmosphere. This is increasing the temperature of the Earth gradually and causing global warming.
Category : green house
As with garden sheds, there are two ways to build a greenhouse: you can either buy the sheets of glass and the frame and do it yourself, or you can hire a professional. However, building a greenhouse can be a lot harder than building a garden shed, which is why even experienced DIY enthusiasts might want to think about calling in some professional help.
The main reason greenhouses are difficult to build is the material that they’re made from: glass. If you drop glass or install it wrongly, it will shatter, meaning that any mistakes you make will start to get expensive fast. Would you put in your own windows? If not, you probably shouldn’t be building a greenhouse. If greenhouses are built incorrectly, not only is it dangerous, but it is unlikely that any of your plants will actually grow properly. Also, it is very difficult to build greenhouses when the sun is shining, as you will get very hot – it’s easier to do it in the winter or the night, but then those are hardly ideal building conditions either.
It can also be complicated to install the necessary irrigation and air circulation systems that a greenhouse needs to function well, although this is less of a problem in a small greenhouse.
If you are going to hire a professional to either build your greenhouse for you or help you, however, make sure that they have the relevant certification and qualifications. Because glass is such a dangerous material, you should steer clear of anyone who seems confident but inexperienced, and only hire someone who knows what they’re doing, even if it is at a relatively high price. If you’re having trouble finding someone, contact the company that sold you the greenhouse originally, as they should have a list of registered installers in your area.
I live in the south on the Mississippi Gulf Coast. The winters are usually mild and snow occurs once every twenty years and melts in 2 hours. We do have days when the temperature drops below freezing and you have to run outside and cover tender vegetation to prevent losing your plants. Even people in the south could benefit from knowing how to build a greenhouse because the temperature even in our mild winters would not be conducive to growing plants and vegetables all year round. It would be much more valuable to people up north where the winters are cold and snow is plentiful.
I did have an uncle when I was growing up in New Orleans who had his own greenhouse and grew flowers, vegetables and especially peppers year round. He was famous for his peppers which he marinated in some kind of vinegar and oil and he kept the family supplied with hot pepper sauce which was well received in New Orleans. The farmer’s market is a very popular place on weekends in south Mississippi so obviously people like their fresh vegetables.
One big advantage to having your own greenhouse is year-round fresh vegetables on your dinner plate. Now the idea of a greenhouse does not appeal to everyone, but help is available to anyone who is interested.
If you are not into eating a lot of vegetables, many wives and housekeepers would appreciate fresh flowers to grace the dinner table and decorate the house all year round. If you want to know all about greenhouses, from how they work to how to build and maintain one you can get all the details in this well written guide.
Tags : Housekeepers, Temperature, Vinegar