University of Iowa professors and CGRER Co-directors Gregory Carmichael and Jerald Schnoor will speak at a virtual event on Thursday, April 29 from 4-5 pm as part of the Hawkeyes Give Back events. Carmichael and Schnoor will speak on their current efforts to combat climate change.
Carmichael is a professor of chemical and biochemical engineering at UI. He has done intense research on air quality along with its environmental impacts. His research includes the “development of comprehensive air quality models and their application to regional and international air pollution problems”.
Schoor is a professor of civil and environmental engineering, as well as occupational and environmental health at the UI. His other environmental work includes hydroscience research and climate advocacy.
Both professors are experts in the field of environmental science. Students, alumni and friends have the opportunity to hear them speak by registering at this link.
Dr. Schnoor pointed out several ways in which climate change has already taken hold in Iowa. More intense storms are eroding soil into waterways, humidity is on the rise, and floods are likely to be separated by periods of drought. If greenhouse gas emissions are not cut dramatically, all of these effects will become more severe. So, what can Iowans actually do to reverse course? Dr. Schnoor had several recommendations.
He urged individuals to consider limiting their own carbon emissions. At the state level, he stated that Iowa should join the sixteen other states in The Climate Alliance, which is a “proposition that climate and energy leadership promotes good jobs and economic growth.” Iowa is a national leader in wind energy and biofuel usage; the professor argued that joining the alliance obviously aligns with the state’s clean energy accomplishments.
Private sector and industry groups can be a part of the climate solution, too, he said. The World Business Council for Sustainable Development provides innovative ideas for companies looking to curb their emissions. Just recently, international martime shipping companies agreed to cut their greenhouse gas emissions by 50 percent before 2050.
Climate change policy recommendations must be based in research. Dr. Schnoor invited Iowans to attend a WorldCanvass program on April 25th to hear about the latest scientific research related to climate change and climate-smart policy from several CGRER members. Part of a series of nine recorded discussions focused on topics of international interest, the event is free and open to the public.
What: WorldCanvass Climate Science and the Environment—What’s Next?
When: Wednesday, April 25th from 5:30-7:00 pm
Where: MERGE, 136 South Dubuque Street, Iowa City, Iowa
The spring semester has come to a close and most UI professors have retreated to their campus labs to catch up on research. Dr. David Peate, on the other hand, is spending his summer days floating on the South China Sea.
This is no pleasure cruise, however. The professor of Earth and Environmental sciences is working 12-hour days to advance scientific understanding of how continents separate and oceans are formed. Peate embarked on the 9-week expedition funded by the International Ocean Discovery Program with 125 other scientists and crew members from around the world, he explained in an interview with Iowa Now.
In the interview, Peate explained that when continents drift apart, the uppermost layer of the Earth’s crust is stretched so much that parts of a deeper layer called the mantle can ooze up into the crust. Sometimes the mantle is so hot that it rises up as lava and forms continental boundaries like those seen in eastern Greenland and northern Europe, he explained. Other times, the mantle rises at cooler temperatures and no lava is formed. The expedition’s primary mission is to understand the difference between these two types of continental rifts.
The continental rift in the South China sea is “different than other well-studied rifted margins. For one, it is not covered by thick piles of lava flows, unlike most other examples of continental rifting, which spawned lava flows,” he said.
The researchers’ ship is equipped with a three mile long steel tube that drills into the ocean floor to collect cores. “That is equivalent to the distance between the Old Capitol and Iowa City West High School,” Peate explained to Iowa Now. Once pulled up, cores are separated into five-foot lengths and prepared for geologists to study. Peate is mostly interested in volcanic rock. Some of the cores will return to Iowa with him. He said, “I will collaborate with other international scientists from the expedition to make detailed chemical investigations of all the volcanic rocks that we find.” Peate continued, “Combining results from the different drilled sites will allow us to build a picture of how the volcanic activity changed through time as the rifting event happened.”
Peate’s other areas of research include the formation and transport of magma in Iceland and the driving forces behind large magma eruptions. His compete interview with Iowa Now can be found here.
Neonicotinoids, a specific class of pesticides, have been detected for the first time ever in tap water according to a recently published study by University of Iowa scientists and the U.S. Geological Survey.
A team of researchers compared tap water samples from the University of Iowa drinking water supply to samples of Iowa City municipal tap water. Tap water from each source was tested for three primary neonicotinoid types: clothianidin, imidacloprid and thiamethoxam. The University of Iowa filtration system removed only a minute amount of each insecticide. In contrast, the City of Iowa City successfully removed 100 percent, 94 percent and 85 percent, respectively, of each primary neonicotinoid.
Researchers say this can be explained by the different filtration systems used in each facility. Neonicotinoids readily dissolve in water, they say, and therefore easily slip through the University’s sand filters. The city employs an activated carbon filter that successfully removes the chemicals. Dr. Gregory LeFevre, University of Iowa environmental engineer and one of the study’s authors, said that activated carbon filters can be a cost-effective way to tackle these insecticides in an interview with the Washington Post. In fact, the University purchased a small activated carbon filtration system shortly after the study wrapped up in July 2016.
Levels of neonicotinoids in University water were relatively small, ranging from 0.24 to 57.3 nanograms per liter. LeFevre said, “Parts per trillion is a really, really small concentration.” The U.S. Environmental Protection Agency has not set a limit for neonicotinoid levels in drinking water. The study’s authors argue that more research is called for to assess neonicotinoid exposure on a larger scale. LeFevre explained, “Without really good toxicity data it is hard to ascertain the scale of this, but whenever we have pesticides in the drinking water that is something that raises a flag no matter what type of concentration it is.”
This week’s On The Radio segment discusses changing flood patterns found by University of Iowa researchers.
Transcript: The risk of flooding is changing regionally across the United States and the reasons could be shifting rainfall patterns and changes in groundwater.
This is the Iowa Environmental Focus.
University of Iowa engineers, in a new study, have determined that the threat of flooding is growing in the northern half of the U.S. while declining in the southern half. The American Southwest and West, meanwhile, are experiencing decreasing flood risk.
UI engineers Gabriele Villarini and Louise Slater compiled water-height information from 2,042 stream gauges operated by the U.S. Geological Survey. They then compared the data to satellite information gathered over more than a dozen years by NASA’s Gravity Recovery and Climate Experiment mission showing the amount of water stored in the ground.
The study found that northern sections of the country have an increased amount of water stored in the ground and are at increased risk for minor and moderate flooding. Meanwhile, flood risk is decreasing in the southern portions of the U.S., where stored water has declined.
The researchers hope their findings can change how flood patterns are discussed. In the past, flood risk trends have typically been discussed using stream flow, or the amount of water flowing per unit time. The UI study views flood risk through the lens of how it may affect people and property and aligns the results with National Weather Service terminology understood by the general public.
For more information about the flood research, visit iowaenvironmentalfocus.org.
From the UI Center for Global and Regional Environmental Research, I’m Jerry Schnoor.
Nearly two dozen Eastern Iowa K-12 teachers attended a workshop Tuesday to learn about hands-on activities and lesson plans for engaging students in science.
The Critical Zone Observatory Environmental Science Workshop brought together the University of Iowa College of Education, the UI Department of Earth & Environmental Sciences, the UI State Hygienic Laboratory, and the Intensively Managed Landscapes-Critical Zone Observatory to help teachers connect their students to environmental science. While the workshop focused mostly on science, Leslie Flynn, a clinical assistant professor in the UI College of Education, said the workshop also aims to show teachers and students how science is connected to other fields.
“I think what (earth and environmental sciences professor) Dr. Bettis did that was interesting for the teachers was show them how our landscape has changed over time. As farm practices have changed and more people have moved into the area, it’s changed the Clear Creek Watershed,” said Flynn. “Teachers were drawing connections not just between the science but also the history of the landscape, geography, political considerations in terms of zoning. I think what it showed us is that it’s a very interdisciplinary topic and that we can use the environment and the watershed to look through multiple lenses. Through math, science, social studies, engineering and I think that really struck a chord with the teachers.”
Workshop attendees spent the morning at a research site in rural Iowa County to learn about hands-on activities and potential field trip opportunities related to environmental science. The afternoon session was at the UI State Hygienic Laboratory where teachers developed environmental science lessons plans. Flynn said she thinks inter-departmental cooperation, particularly between she and CGRER member Dr. Art Bettis, was key to the success of the event.
“One thing that’s really important to me is finding people who want to partner. In this project, Art and I said “yes” to each other. We didn’t know each other (prior to this event.) Then the State Hygienic Laboratory welcomed us in here,” said Flynn. “So one of the great things is finding people who say “yes” and when they do you can solve problems for K-12 and the community so it’s just been a great experience.”
Students in Environmental Science classes at Lincoln High School in Des Moines are working hard to increase their school’s recycling. Once a week, the students collect recycling bins that each class fills and places outside of their classroom.
The Environmental Science students then sort through the bins to ensure that everything is recyclable.
So far, they have collected over 9,700 lbs. of recycling.
Read more about this project and other school projects via the Des Moines Register here.
For a series of videos on creating a school recycling program, click here.