05.07.2009
The simplest hydrocarbon, methane, is a gas (at standard temperature and pressure) with a chemical formula of CH 4. However, when averaged over 100 years each kg of CH4 warms the earth 23 times as much as the same mass of CO2. Methane is a GHG with a relatively short atmospheric lifetime of 10+ years. The primary sources of methane are landfills, coal mines, natural gas systems and livestock.
Metering stations are placed periodically along interstate natural gas pipelines to allow pipeline companies to monitor and manage the natural gas in their pipes.
A device that measures the amount of electricity a customer uses. The primary types are energy meters (measures electricity use in kilowatt-hours), demand meters (also measures peak load), interval demand meters (records use in measured time periods), and time-of-use meters (allows different charges for electricity used during different time periods).
The change from one energy structure to another
Metamorphic rocks are rocks that have “morphed” into another kind of rock. These rocks were once igneous or sedimentary rocks. These rocks were once igneous or sedimentary rocks and changed as a result of being under tons and tons of pressure, which fosters heat build up, and this causes them to change