Wind Pros and Cons, Myths and Misconceptions Myths and Misconceptions Myths about birds: Turbines kill: Today, turbines are built larger and more efficiently, and as a consequence, they rotate much more slowly than earlier versions (see them spin! Link to video). Even Audubon supports the development and use of wind power.
There are many renewable energy sources out there right now, continuing to develop in their technology and production. All of these resources have very high capital cost inputs that are hard to compete with cheap natural gas. However, these new resources are abundant, some even limitless, and unlike natural gas, fuels and oil, they will be around for a long time.
"Coal is to the world of industry what sun is to the natural world." Coal was critical to the United States' industrial revolution. By the late nineteenth century it replaced wood as the preferred fuel for powering factories, locomotives, and ships, and displaced wood for home heating in the northeastern United States.
Three Mile Island: In 1979 at Three Mile Island in USA a cooling malfunction caused part of the (TMI 2) core to melt. The reactor was destroyed but there were no injuries or adverse health effects from the Three Mile Island accident.
The health effects of the Chernobyl accident have been the subject of unprecedented study by health professionals and unprecedented speculation and exaggeration by parts of the media. This Appendix summarises the following authoritative and expert assessments of the situation:
The destruction of the Fukushima Daiichi nuclear power plant in March 2011, caused by an earthquake and subsequent tsunami, resulted in massive radioactive contamination of the Japanese mainland.
If it were not for naturally occurring greenhouse gases, the Earth would be too cold to support life as we know it. Without the greenhouse effect, the average temperature of the Earth would be about -2°F rather than the 57°F we currently experience There are over 1,000 surface mines and more than 1,000 underground mines in the US.
Mountaintop removal / valley fill coal mining (MTR) has been called strip mining on steroids. One author says the process should be more accurately named: mountain range removal. Mountaintop removal /valley fill mining annihilates ecosystems, transforming some of the most biologically diverse temperate forests in the world into biologically barren moonscapes.
RP Siegel frequently contributes to Triple Pundit, a website devoted to sustainability initiatives favoring "people, planet, profits." Recently Triple Pundit posted Siegel's series exploring the advantages and disadvantages of four widely used energy sources that fuel American industry. Whether a fossil fuel or renewable energy, every source presents its own unique set of challenges.
When comparing LECs for alternative systems, it is very important to define the boundaries of the 'system' and the costs that are included in it. For example, should transmissions lines and distribution systems be included in the cost? Typically only the costs of connecting the generating source into the transmission system is included as a cost of the generator.
A polygon is "traditionally a plane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments". This article will show you how to make a polygon building using SketchUp.
Google Sketchup is a great product. If you want to know how to use it,here is a step to step manual about using this software. Begin by downloading a free copy of the software. It is available from http://sketchup.google.com/download.html.