Solar energy, wind energy, geothermal energy, hydropower and biomass are some of the renewable sources of energy. Using of renewable sources of energy is good because these sources offer an environmentally friendly option than utilizing fossil fuels. There will be an improve energy security and energy independence if people use renewable source of energy.

Technological advancement is only possible through constant research and innovations. The latest example of such progress is the LED light bulb. Most research is carried out in order to find a way of improving the performance of an existing facility or to find a new product that will prove to be more economical and more efficient than the existing facility.

As consumers demand the need for more paper, whether it's for newspapers, plain paper or books, we continue to cut down vast numbers of really old trees. It will take numerous years to see this turned over. Reusing and recycling paper is really important nowadays. All paper, including books and magazines, are virtually wholly biodegradable.

As early as elementary science, it taught us that water covers 70% of the Earth's surface, while earth's land mass only covers 30% of the Earth's surface. Now that is huge different. Everyone might wonder how come other environmental organizations have been relentless in their campaign to conserve water. Well the truth is only a small percentage of water is actually in a useable stat.

Sewage treatment is very important in our society. It's an area that's often misunderstood if understood at all. Nevertheless, treatment plants have a number of important functions. A sewage treatment plant is also known as a domestic wastewater treatment plant. Basically, what the process involves is cleaning up the sewage which is released from domestic and commercial sources.