The following is an excerpt from my Phase I submission of the CLEO Project. For more details about the great project, click on the banner or the graphic at the bottom of this post. By the way, I now am offering advertising space on my blog for free for all non-profits. Comment below to get in contact.
"My first cab drive in Rio was from the airport to my hotel. Although the
car ran out of gas, this didn’t upset me because I saw something that was
totally unexpected. The taxi ran on natural gas. It cost 3 cents per kilowatt hour. Oil costs 5 cents per KWH. Kilowatt hours are a unit of measurement
that shows the amount of energy that materials like natural gas, oil, and coal
can produce. Natural gas is made up of a number of compounds including methane.
Although methane is a potent greenhouse gas, it's better than carbon dioxide because it breaks up in the atmosphere after 12
years while CO2 affects the environment for
100 to 500 years after it is released."