By
Zulima Palacio
The
production of passenger vehicles around the world reached an all-time high this
year: 80 million new cars and light trucks, according to a study by the
Worldwatch Institute in Washington . The new production record is heightening
concerns among environmentalists, since petroleum-fueled automobiles are a
major source of air pollution and climate-changing carbon emissions.
With
the new cars and light trucks added to the global fleet, the world is nearing a
milestone - one billion vehicles on the roads. Most are petroleum-fueled
internal combustion engines, whose emissions cause environmental problems like
air pollution and contribute to global warming.
Michael
Renner of the Worldwatch Institute wrote the analysis of worldwide auto
production.
The
strongest producer by far right now is China ,
which had a tremendous period of growth over the last decade and have overtaken
Germany , Japan and the U.S. , which used to be the three
big producers worldwide," Renner said.
Hybrid
and electric vehicles represent less than two percent of the total output, the
study says.
But
representatives of the auto industry say they care about the environment. Steven Brooks, an analyst at Edmunds.com, which
compiles data on the automobile market, says the industry is responding to the
desire for greener products.
“There
are 43 different vehicles that are going to get introduced into the shopping
arena by the end of 2015, like this Honda CR-Z here. This is a hybrid electric
vehicle,” Brooks said.
But
Renner says unless we move to cleaner and more efficient fuels, as well as
alternative propulsion systems, electric cars won't solve the environmental
problem.
“If
we don’t significantly change the bases on which our electricity systems are
functioning, in other words if we use large amounts of coal and fossil fuels to
produce electricity, then going with the electrical vehicles is not getting us
all that far,” Renner said.
Industry
experts say hydrogen fuel cells and experimental new materials, such as strong,
lightweight magnesium and carbon composites, could dramatically improve energy
efficiency in tomorrow's passenger vehicles.
But such improvements are still years away. In today's car market, Steven Brooks says, gasoline
prices are still driving people’s vehicle choices.
“The
mid-size sedans are still the number-one-selling segment in the country, but
the adoption of the small and hybrid vehicles is on the rise as the gas prices
go up,” Brooks said.
According
to the United Nations, emissions from road transport constitute more than 20
percent of greenhouse gases.
The
Worldwatch study notes that even in developing countries, car travel distances
have doubled in the past decade. Experts agree that to counter the public
health and environmental impact of this trend, governments must develop better
systems of public transportation. ---VOA News
0 comments:
Post a Comment