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Adding it up with Carbon Footprints
Carbon dioxide exists everywhere. It's in every breath we take; it keeps trees
and plants around us lush and green; it even gives our soft drinks fizz.
But because the ever-present gas also helps holds the sun's heat in our
atmosphere, it has taken on an edge of notoriety in recent years.
Increasing amounts of carbon dioxide emitted from sources like factories, cars,
and power plants have been blamed for contributing to climate change (along with
a list of other "greenhouse gases," including methane).
Carbon dioxide molecules can last in the atmosphere for a century or more, and
many experts see too much of it as a bad thing. The idea of a "carbon footprint"
has been developed to tally the amount of carbon dioxide anything emits,
directly or indirectly-from a coal-fired power plant to a family of four.
Technically, each of us expands our own carbon footprint every time we exhale,
although the amount really adds up when it comes to burning fossil fuels like
coal, gasoline, and natural gas. Burning these fuels releases carbon dioxide
into the atmosphere, and everyone connected to those emissions (such as a family
driving a car or using electricity) boosts their own carbon footprint.
The sources making up carbon footprints are often broad in scope, spanning state
and sometimes national boundaries. The U.S. Environmental Protection Agency
(EPA) breaks sources of carbon dioxide emissions into three categories, applied
here to a family as an example: direct emissions, such as from the family
minivan; indirect emissions from generation of the electricity they use; and all
other indirect emissions, from trash to the manufacture of every item bought.
(For example, how much electricity went into making your television, and how
many miles did a tractor-trailer drive to get it to the store?) All things
considered, the average U.S. household is responsible for 21 tons of carbon
dioxide a year, according to the EPA, an amount that would take more than four
acres of pine trees to soak up.
Many companies are using the idea of carbon footprints to show consumers just
how much carbon dioxide was released in getting one particular item to them.
PepsiCo, for example, recently determined that 3.75 pounds of carbon dioxide are
emitted for every half-gallon carton of Tropicana Pure Premium Orange Juice it
produces. With this information, steps can be made to reduce emissions.
This applies to companies and individuals alike. A family can trim their carbon
footprint by trading in the minivan for a more fuel-efficient vehicle, and by
making their home more energy efficient to cut back on electricity use. Best of
all, these measures not only cut carbon emissions but gasoline and electric
bills as well.
As Congress considers legislation to limit carbon dioxide emissions, associated
costs will impact everyone. Consumers paying electric bills, and every company
making products with electricity generated from fossil fuels, will foot the tab.
Electric cooperatives are asking elected officials to address climate change
issues in an affordable and environmentally responsible fashion.
We're ready to provide insight into how various policy proposals will affect
consumers, and we'll urge lawmakers to reach the right answers.
In unity with 42 million other electric co-ops consumers around the country, ask
your U.S. representative and senators to work with electric cooperatives to keep
electric bills affordable. Get involved in this effort by participating in the
Our Energy, Our FutureT grassroots campaign at
www.ourenergy.coop.
To calculator your carbon footprint click the link below:
To calculate your household carbon footprint, visit:
http://www.epa.gov/climatechange/emissions/ind_calculator2.html
To calculate your business' carbon footprint, visit:
http://www.epa.gov/epawaste/partnerships/wastewise/carboncalc.htm
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