|
For
that reason, he said, the need for chemicals to grow switchgrass is
relatively low.
"Switchgrass
is also very tolerant of poor soils, flooding and drought, which are
widespread agricultural problems in the Southeast," Bransby said.
If
used to produce energy, he continued, switchgrass will reduce the risk
of global warming by replacing fossil fuels such as coal, natural gas
and oil.
When
fossil fuels are burned, carbon is removed from below ground, releasing
carbon dioxide into the atmosphere. That produces greenhouse gas and
increases the risk of global warming.
"In
contrast, switchgrass removes carbon dioxide from the atmosphere and
incorporates it into plant tissue both above and below the ground,"
Bransby said.
If
switchgrass doesn’t pan out, Bransby said Alabama and other
Southeastern states have something that’s at times taken for granted—
trees.
"We’ve
got more wood than we know what to do with,’ he said. "In the
last seven years, we’ve seen three huge pulp mills close. Many of our
plants are outdated. They can produce pulp and paper more cheaply down
in Brazil now."
The
downturn in America’s housing industry has resulted in a huge increase
in the amount of available wood, Bransby said. For that reason, those
who are looking at alternate fuel sources might take a gander at wood.
"Wood
chips, for instance, can be used as biofuel," he said. "We’ve
got huge amounts of it in this country. Before we get into switchgrass,
there are other types of fuel sources out there."
America
has been a capitalist country since its creation more than two centuries
ago, Bransby noted, and, for that reason, he believes efforts are well
under way to help solve the energy crisis.
"Companies
compete with one another in a capitalist system," he said. "If
one company comes up with something worthwhile, they’re not going to
tell the market until they’re ready. There’s a lot going on under
the radar screen. I think we’re going to have some big surprises in
the next few years."
Until
that happens, Bransby said, switchgrass, corn and other ideas will be
used to try and put a dent in foreign oil dependency.
The
bottom line in switchgrass and other fuel alternatives, he said, is the
cost factor and that is likely to determine whether it succeeds or
fails.
"We
must demonstrate the process of using switchgrass for energy can be
profitable for energy producers, farmers and consumers of energy,"
he said.
Finding
a solution to the continuing energy crisis around the world won’t
happen overnight, Bransby believes.
"We
must recognize fossil fuels will be our main energy base for many years
and bioenergy from switchgrass is not intended to compete with these
valuable resources, but rather, to complement them by softening their
environmental impact," he said.
That
means switchgrass, wood and other agricultural possibilities will never
be the end-all to the world’s energy crisis.
But,
as Bransby believes, something is better than nothing and, as long as
research continues, a suitable answer may be around the corner one day.
Alvin
Benn is a freelance writer from Selma. |