Nanotechnology is the study and development of particles and even machines on a cellular scale. A nanometer equals one-billionth of a meter. Nanoparticles are already being used in medicine and nanomachines are being developed to perform a variety of tasks. Nanotechnology will affect every part of our lives within the next decade.
In the US many new cars and trucks are equipped to operate on either gasoline or ethanol. Many parts of the US now have ethanol available at fuel stations and convenience stores for far less per gallon than gasoline. Although this is exciting news, the use of ethanol as a motor vehicle fuel in the US remains a very small portion of the total fuel market.
The US Department of Energy has announced a projected investment of €2.7billion ($3.8billion USD) in a national smart grid to more efficiently create and distribute electrical power. Existing electrical power grids are aging and inefficient compared to current technology.
Petropolis, Brazil, a small town 45 miles (65km) from Rio de Janeiro, is a tourist hot spot that has turned its human sewage problem into a solution for clean energy. The town has built more than 80 bio-digesting units designed to capture the methane gas and carbon dioxide released by sewage. In the past, a lack of sufficient sewage treatment facilities has been a problem for the area, as it is in many developing countries.
Each of us leaves a carbon footprint on the earth as we live our daily lives. Most of us don’t think about it or realize the actual impact of the things we do routinely. Amazingly, each of us produces an average of 7.5 tons of carbon dioxide (CO2) per year. Unfortunately, many of us produce a much higher amount of CO2.
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