COLUMBUS, Ohio – With the waters of Lake Erie starting to warm, concerns are rising about the possibility of toxic algal blooms over the summer months.
There are evidence-based agricultural practices that can reduce the threat, so why are they not widely used?
New research of solutions and behaviors found that goals to reduce nutrient runoff linked to algal blooms are feasible, as many farmers are motivated to use best practices.
However, Robyn Wilson, associate professor of risk analysis and decision science at Ohio State University’s School of Environment and Natural Resources, explains real and perceived barriers are preventing action.
"We see a lot of people being willing to use cover crops,” she says. “But when you dig into why they're not doing it, what we see as a reason at an individual level, farmers lack confidence in their ability to successfully implement them. And they also question how effective cover crops are as a solution."
Wilson, who led the research, says farmers need better cost-benefit information, support tools and technical assistance to execute recommended practices.
According to the study, the most effective strategies to reduce nutrients are the use of phosphorus application guidelines, subsurface fertilizer application, erosion controls and water-management practices.
Voluntary and mandatory approaches to address algal blooms are suggested. And Wilson explains well-designed outreach and incentive programs could increase voluntary adoption, such as the installation of water filtration measures on fields currently in use.
"That's going to require economic incentive because no farmer's going to volunteer to take land out of production,” she states. “We have some pretty conservation-minded farmers, but that's still a pretty big ask for them. We're asking them to do something for a collective benefit at an individual cost."
Wilson also recommends further understanding of the motivations behind the use of certain practices, and how to best ensure long-term use. That's because improvements won't happen overnight.
"Even if another 40 percent of farmers started using these practices tomorrow, would we see those benefits from the lake in the next year or two?” she questions. “Maybe not. So some of those processes take a while to play out to get the positive changes from an environmental standpoint."
Wilson says she's encouraged by the research, as well as Gov. Mike DeWine's recently proposed $900 million fund to improve water quality, specifically focused on Lake Erie.
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"Don't go into the water" is a warning Illinoisans may want to heed. A 2024 study released this week found all state-border beaches on Lake Michigan last year had evidence of contamination.
Findings from the Safe in Swimming report indicate these conditions could cause serious gastrointestinal and respiratory ailments. The data show bacteria levels were well above the EPA's "Beach Action Value" water quality standards. These guidelines help determine advisories and closures.
Emily Kowalski, outreach and engagement manager for the Environment Illinois Research and Education Center, explained the odds of exposure.
"One hundred percent of those beaches had potentially unsafe levels of fecal indicator bacteria at least one day in 2024, meaning that swimmers were potentially at risk," she said.
A water sample exceeding acceptable BAV standards increases the chances of a higher illness rate among swimmers. The study shows 71% of Great Lakes beaches had at least one potentially unsafe test day. Three beaches in Cook County had the highest degrees of dirty water - Winnetka Lloyd Park had the highest at 21. Glencoe Park and Montrose beaches had 14 days each.
The study identified runoff from paved streets and parking lots, and overflow from outdated, bacteria-encrusted sewage systems as harmful contributors. Livestock waste from concentrated animal feeding operations, or CAFOs, is another source.
Human contact with water tainted by manure could cause an E. coli infection. Kowalski suggested the environment could be one solution to interrupt the pathogen flow.
"Investing in nature-based solutions, green infrastructure, but also the repair needed in aging sewage systems nationally," she continued.
An estimated 57 million Americans experience nausea, diarrhea, ear and eye infections, and skin rashes after swimming in polluted waters. Kowalski adds the EPA estimates a price tag of $630 billion over 20 years will be needed to address sewage runoff and other wastewater problems nationwide.
Illinoisans can check the status of their favorite beach at Chicago Park District Beaches website.
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Following last year's historic drought in Montana and hot temperatures early this spring, the Blackfoot River is running at roughly 25% of normal water levels.
Water rights have shifted some this year but experts said management will continue to be community-driven.
Clancy Jandreau, Blackfoot water steward for the nonprofit group Blackfoot Challenge, said the river's fish population declined in the late 1980s and early 90s, but there has also been a long history of restoration efforts. The new Blackfoot Drought Response Plan, updated in April, helps build on those efforts, Jandreau noted.
"We really wanted to more explicitly recognize that habitat restoration efforts that improve fisheries can in and of itself be a response to drought, as it builds resilient fisheries," Jandreau explained.
The new plan also incorporates deferred changes from the 2015 Montana Water Rights Compact, in which the Confederated Salish and Kootenai Tribes and Montana Fish, Wildlife and Parks became co-owners of a water right historically associated with hydropower production.
During a dry summer like this one, Jandreau pointed out the drought plan encourages a "shared sacrifice for shared benefit" model, in which irrigators, anglers and other water users voluntarily reduce their effects on the resource.
"Everybody's going to be seeking the refuge of the river over this summer," Jandreau added. "That includes humans and wildlife. So just doing their best to be aware of that and being responsible and ethical recreators this summer out there on the river."
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Because of drought and failing infrastructure, the state of Texas will run out of water by 2030, according to the Texas Water Development Board.
But two new pieces of legislation are on the books that are designed to address the state's water shortage.
Senate Bill 7 and House Joint Resolution 7 would allocate $20 billion for infrastructure improvements and new projects.
Agriculture Commissioner Sid Miller said he's been trying to get lawmakers to address the state's water crisis for 10 years.
"We completely lost our sugar cane industry because - no water," said Miller. "We've brought it to light that Mexico is not paying their water bill with our treaty on the Rio Grande, so that was brought to light. We've got a drought over half the state of Texas."
An increase in population has also contributed to the state's water woes.
JR 7 would authorize the state to use $1 billion a year from sales tax revenue for the water projects. The resolution must be approved by voters in November.
If the amendment is approved, the projects and funds will be overseen by the Texas Water Development Board. Miller said in the meantime, the state needs to do a better job at managing the water it has.
"We spend millions and millions of dollars on stormwater drainage, getting rid of excess water when it rains," said Miller. "We need to capture that water and use it. We need to capture the water out of these water treatment plants. I'm not advocating that we drink it but, my farmers sure would like to irrigate with it."
Miller said the state can also benefit from rainwater harvesting. He added that up to 70% of the state's water is lost, as it's transported to various municipalities because of old, worn-out infrastructure.
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