Green Roofs | Heat Island Effect A green roof, or rooftop garden, is a vegetative layer grown on a rooftop. Green roofs provide shade and remove heat from the air through evapotranspiration, reducing temperatures of the roof surface and the surrounding air. On hot summer days, the surface temperature of a green roof can be cooler than the air temperature, whereas the surface of a conventional rooftop can be up to 90°F (50°C) warmer.1 Green roofs can be installed on a wide range of buildings, from industrial facilities to private residences. They can be as simple as a 2-inch covering of hardy groundcover or as complex as a fully accessible park complete with trees. Benefits and Costs In addition to mitigating urban heat islands, the benefits of green roofs include: Reduced energy use: Green roofs absorb heat and act as insulators for buildings, reducing energy needed to provide cooling and heating. This apartment building in Portland, Oregon, is among the 6 acres (24,300 m2) of green roofs in the city, as of 2007. 1. . 3.
Battery Recycling - Cost-Effective and Safe Disposal Home Green Roofs If buildings sprang up suddenly out of the ground like mushrooms, their rooftops would be covered with a layer of soil and plants. That’s not how humans build, of course. Instead we scrape away the earth, erect the structure itself, and cap it with a rainproof, presumably forgettable, roof. But step out through a hatch onto the roof of the Vancouver Public Library at Library Square—nine stories above downtown—and you’ll find yourself in a prairie, not an asphalt wasteland. Living roofs aren’t new. Across town from the library, the Vancouver Convention Centre is getting a new living roof. Technology is only partly the reason. And, increasingly, researchers such as Maureen Connelly—who runs a green-roof lab at the British Columbia Institute of Technology—are studying the practical benefits green roofs offer, helping quantify how they perform and providing an accurate measure of their ability to reduce storm-water runoff, increase energy efficiency, and enhance the urban soundscape.
Plasma gasification Process[edit] A plasma torch uses an inert gas such as steam. The electrodes vary from copper or tungsten to hafnium or zirconium, along with various other alloys. Feedstocks[edit] The feedstock for plasma waste treatment is most often municipal solid waste, organic waste, or both. Yields[edit] Pure highly calorific synthetic gas consists of Carbon monoxide (CO), H2, CH, etc.. Plasma processing of waste is ecologically clean. The production of ecologically clean synthetic gas is the standard goal. Metals resulting from plasma pyrolysis can be recovered from the slag and eventually sold as a commodity. Equipment[edit] Gasification reactors operate at negative pressure[1] and recovers both[10] gaseous and solid resources. Advantages[edit] The main advantages of plasma technologies for waste treatment are: Disadvantages[edit] Main disadvantages of plasma technologies for waste treatment are: Commercialization[edit] Military Use[edit] See also[edit] References[edit] External links[edit]
Smart Communities Network: Green Buildings Green Building Principles Green Building Principles-- Resource Conservation Recycled-Content Materials Materials Reuse Minimization of Construction Waste Water Conservation Green Roofs Recycled-Content Materials There are many building products available today that are manufactured from recycled materials. Alternative building materials can conserve resources, as well. Links OIKOS Site includes a free searchable database of more than 1,700 companies that offer green building products. Green Building Resource Guide Provides information on The Green Building Resource Guide, a database of more than 600 green building materials and products. Guide to Resource Efficient Building Elements This online E-Guide from the NCAT Center for Resourceful Building Technology provides descriptions and contact information for the manufacturers of more than 600 recycled and resource efficient building products. Recycled-Content Product Directory A searchable database provided by the California Integrated Waste Management Board.
The Difference between Aliens, Demons and Fallen Angels The Difference Between Fallen Angels, Demons, Aliens, Jedi, and the Watchers By Sherry Shriner In these last days, the Bible says it will be a time of mass hybridization and the mixture and corruption of human DNA by fallen angels, also known as "Aliens." The government is and has been, conditioning the existence of aliens through Hollywood, science fiction, cartoons, and other sources. These Aliens are not ascended masters, or enlightened ones, or beings from galaxies millions of miles away, nor are they our forefathers or original creators. The Lord has told me that in the coming days, these Aliens will make their presence more visibly and physically known on earth. As the end times approach, the lies of extra terrestrial lineage, heritage, and creation will come out in full force. Two Separate Rebellions in the Early Days Most people are familiar with the rebellion of Satan wanting to be like God and wanting to be worshipped as God. In Enoch Chapter 6:1 it says.. 3 and beget us children.'
Lindsey Williams Simon Peter versus Simon the Sorcerer This is a great expose by the late Dr. E.L. Martin. It documents the true history of the Samaritans, the meaning of the word "peter" in the ancient world and the "church" that was established at Rome by Simon the Sorcerer. "But there was a certain man, called Simon, which beforetime in the same city used sorcery, and bewitched the people of Samaria, giving out that himself was some great one: To whom they all gave heed, from the least to the greatest, saying, This man is the great power of God. And to him they had regard, because that of long time he had bewitched them with sorceries. Right from the very beginning, Satan had his counterfeit "messiah" operating right in the true Messiah's backyard. Simon believed and was baptized. From Simon Magus we get the word simony which means to buy a religious office with money. After his encounter with St. As in the case of Patrick and Palladius, the arch-fiend Satan took advantage of the similarities of the names to supplant one with the other.