The University of Iowa

Annual Report 2010-2011

Out Front logo--The University of Iowa

Something in the air

UI researcher finds black carbon implicated in global warming

Increasing the ratio of black carbon to sulfate in the atmosphere increases climate warming, suggests a study conducted by a University of Iowa professor and his colleagues and published in the journal Nature Geoscience.

Black carbons—arising from such sources as diesel engine exhaust and cooking fires —are widely considered a factor in global warming and are an important component of air pollution around the world, according to Greg Carmichael, Karl Kammermeyer Professor of Chemical and Biochemical Engineering in the UI College of Engineering and co-director of the UI Center for Global and Regional Environmental Research. Sulfates occur in the atmosphere largely as a result of various industrial processes.

In order to conduct the National Science Foundation-funded study, Carmichael and his research colleagues made ground-level studies of air samples at Cheju Island, South Korea, and then sampled the air at altitudes between 100 and 15,000 feet above the ground using unmanned aircrafts (UAVs).

They found that the amount of solar radiation absorbed increased as the black carbon-to-sulphate ratio rose. Also, black carbon plumes derived from fossil fuels were 100 percent more efficient at warming than were plumes arising from biomass burning.

"These results had been indicated by theory but not verified by observations before this work," Carmichael says. "There is currently great interest in developing strategies to reduce black carbon as it offers the opportunity to reduce air pollution and global warming at the same time."

The authors suggest that climate mitigation policies should aim to reduce the ratio of black carbon to sulphate in emissions, as well as the total amount of black carbon released.

Carmichael is chair of the scientific advisory group for the World Meteorological Organization's GURME (Global atmospheric watch Urban Research Meteorology and Environment) project and chair of the scientific advisory group for the Shanghai Expo pilot project on air quality forecasting. He has worked with Shanghai authorities for three years to help develop an early warning system for air quality problems and heat waves.

stories about people, being human, our bodies, minds, health care, or existential questions

P also stands for Provost

P. Barry ButlerMason names P. Barry Butler executive vice president and provost...more

Peel appeal

Substance found in apples promotes muscle growth in mice...more

Fear discovery

Fear discovery could lead to new interventions for PTSD...more

Cystic fibrosis finding

UI-led study could help predict severity of disease, may lead to new therapies...more

Locking out Ebola?

UI-led research team identifies receptor for virus...more

Beating mealtime woes

Pediatric feeding program helps children overcome severe eating difficulties...more

Furry FriendsProgram provides emotional lift to young patients...more

a patient hugs a dog that is part of the Furry Friends program

Working toward justice

UI law students help commute abused woman’s prison sentence...more

Body-language bewilderment

UI study investigates variability in men's recall of sexual cues...more

Muscular dystrophy discovery

muscular dystrophy microscopic viewUI team identifies new gene mutation that causes the condition...more

Nursing dedicates center

Top-rated gerontological/geriatric program gets boost from $2.2M donation...more

Heard the buzz?

University of Iowa researchers identify caffeine-consuming bacterium...more

things associated with work—business research, economic development, education

You can’t beat BONGO

BONGO app on a smartphoneNew service helps bus riders get real-time route information via mobile devices...more

Quite the impact

UI contributes $6 billion annually to Iowa economy, creates 1 in 30 jobs...more

Meet the dean

Margaret Crocco, College of Education deanMargaret Crocco leading College of Education...more

Holy hardware!

High-performance computing cluster is UI's largest supercomputer ever...more

A precarious development

UI study finds employee training might actually increase turnover...more

“Transformation, reflection”

dentistry building renderingUI Colleges of Dentistry, Pharmacy celebrate landmark moments...more

Did you see that?

Marketing researcher examines how we remember what we don't remember...more

Taking back the message

hip hop magazine creatorAlum rocks the BELL with hip-hop magazine...more

Meeting real challenges

Wild Bill's Coffee Shop signBusiness student group aids nonprofit organizations... more

Online approach adds up

UI offers new Web-based resources to maximize student math potential...more

Stop the wacky wikis!

wikipedia logoUI researchers design tool to improve Wikipedia accuracy...more

Managers matter

UI researcher finds that bad leadership wrecks companies, despite what leaders wish...more

stories about Iowa, the country, the world, the universe (geography, flooding, immigration, space)

Lightening their load

Virtual Soldier Research helping Navy, Marines with combat effectiveness...more

A welcome proposal

Iowa Flood Center embraces call to develop national flood center...more

Something in the air

UI researcher finds black carbon implicated in global warming...more

Set sail on micro scale

IIHR wave basinIIHR–Hydroscience & Engineering unveils $4.9 million wave basin...more

Sharing our gift

South Korean teachers visit UI to learn more about gifted education...more

Herky hits D.C.Hawkeye Caucus makes trip to nation's capital...more

Herky outside White House in DC

Helping unify a nation

College of Law professor guides Nepal toward new constitution...more

Giving Chile a clearer picture

UI researchers develop system to predict air pollution events for Santiago...more

Screening overseas

Films with UI ties play at renowned Venice, Cannes festivals...more

Aiding a town’s turnaround

Grad students partner with Dubuque on sustainability initiative...more

Beyond science

Lakeside LabLakeside Lab in northwest Iowa serves as regents resource center...more

A global grasp

New UI student group seeks to improve UI, China business opportunities...more

arts and entertainment, athletics

A plan of note

LMN Architects selected to design new facility for UI School of Music...more

Fit for EveryoneNew recreation and wellness center opens...more

Campus Recreation and Wellness Center

Something to admire

UIMA Director Sean O’Harrow envisions art museum for 21st century...more

Hawks’ run continues

Football squad notches third straight bowl win at 2010 Insight Bowl...more

Sophocles, rebooted

University Theatres Mainstage presents interactive Antigone 2.0...more

India has honors

Hawkeye golfer named Big Ten Player of the Year...more

Democracy's harmony

School of Music ensemble’s interactive presentation is music to students’ ears...more

Those Who CanExhibit honors departed art faculty...more

Tom Aprile exhibit

Ladies take KinnickA sporting way to tackle a fund-raiser...more

Marcus Coker hangs on to the ball as a Ladies Football Academy participants tries to take it away

This app is apropos

UI development team launches Iowa City UNESCO City of Literature iPhone app...more

Giving life to the defunct

old typewriterUI literary magazine focuses on trends, fads, cultures that have come and gone...more

More than a game

Law school helps students study the legal side of sports...more

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