
Reducing greenhouse gas emissions
can boost Michigan economy
Jun 15, 2007 - Jim Erickson - University
of Michigan News Service
Michigan can add $380 million a year
and 3,400 full-time jobs to the state's economy by
2025 while reducing emissions of heat-trapping greenhouse
gases linked to global warming, according to a study
released today by the Center for Sustainable Systems.
The study, Michigan at a Climate Crossroads:
Strategies for Guiding the State in a Carbon-Constrained
World, evaluates emissions-reduction options and their
likely effects on the state economy. Based on computer
modeling studies, the report concludes that Michigan
can reduce emissions of carbon dioxide and other greenhouse
gases 12 percent by 2025 while fueling job creation
and economic growth. Researchers presented their findings
in testimony before the House Energy and Technology
committee of the Michigan Legislature. "Our research
demonstrates that the state can achieve environmental
improvements at the same time that it creates positive
economic outcomes," says project director Gregory
Keoleian, co-director of the Center for Sustainable
Systems. "Policies such as a Renewable Portfolio Standard
could better position the state to thrive economically
while addressing future energy challenges and anticipated
carbon regulations." Enacted separately, the examined
policies could result in the following economic impacts
by 2025: • Renewable portfolio standard—requiring
state-regulated utilities to provide 20 percent of
their power from renewable sources could add $64.6
million annually to the state's economy and create
881 jobs; • Renewable motor fuel standard—mandating
that renewable sources such as ethanol supply 25 percent
of the state's motor vehicle fuel could create 1,700
jobs and contribute $283 million annually to the state's
economy; • Building codes—requiring higher insulation
values for ceiling, walls, floors, windows and basements
in all new single-family homes built in the state
could create 644 jobs and contribute $54 million annually.
This option would involve implementing a combination
of the International Energy Conservation Code 2006
and U.S. Department of Energy insulation recommendations;
• Appliance standards—setting efficiency standards
for 15 common industrial and household appliances
could create 437 jobs and contribute $38.3 million
annually; • Combined heat and power—producing at least
180 megawatts using combined heat-and-power systems
as replacement electricity and steam sources for industry
would reduce greenhouse emissions. But 81 jobs and
$13.6 million annually could be lost due to state
government subsidies; and • Carbon sequestration—planting
conifers on 10 percent of the state's marginal agricultural
lands could lead to a loss of 212 jobs and cost the
state $46.7 million annually due to state government
subsidies. Of the policies analyzed, implementing
a 20 percent renewable portfolio standard would result
in the greatest reductions in greenhouse gas emissions
by 2025: 39.9 million metric tons of carbon equivalent.
By 2025 a renewable motor fuel standard could cut
emissions by 13.2 million metric tons; carbon sequestration
by 10.3 million metric tons; appliance efficiency
standards by 7.35 million metric tons; revised building
codes by 6.83 million metric tons; and the use of
combined heat and power by 6.09 million metric tons.
"This study demonstrates that environmentally sound
policy and economic growth are not mutually exclusive,"
says Rosina Bierbaum, dean of the School of Natural
Resources and Environment. A team of U-M faculty members
and graduate students worked on the project for more
than a year, with guidance from more than 150 experts
from business, government, education and non-profit
organizations. Primary project sponsors were the Center
for Sustainable Systems and the National Environmental
Trust. The new study builds on the Michigan Greenhouse
Gas Inventory 1990 and 2002, prepared by the Center
for Sustainable Systems. That report showed that statewide
greenhouse gas emissions increased 9 percent between
1990 and 2002, from 57.4 million metric tons of carbon
equivalent to 62.6. In 2002, a third of the emissions
resulted from electricity generation, 26 percent came
from the transportation sector, and 17 percent from
industry. In February the United Nations-sponsored
Intergovernmental Panel on Climate Change concluded
that the human-caused buildup of heat-trapping greenhouses
gases has "very likely" contributed to the observed
increase in the global average temperature over the
past 50 years. The full report is available at css.snre.umich.edu/css_doc/CSS07-02.pdf.
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