Higher temperatures, extreme rainstorms, loss of wildlife, and a drop in Lake Michigan water levels. This is what the Midwest can expect in the coming decades according to the latest review of climate change trends.
Released on Tuesday, the
2014 National Climate Assessment provides an in-depth look at the expected impacts of climate change across the country. The report also investigates how businesses, agriculture, infrastructure, natural resources, and public health will be affected if current trends continue.
Midwesterners have likely noticed a few of the projected changes already. Summers are longer and warmer, winters are wetter, and flooding is increasing. But some of the long-term impacts might not be as apparent. For example, higher water temperatures could drive out fish species and make it easier for non-native species to invade new habitats. Stronger rainstorms, especially in cities, will also mean more runoff that pollutes waterways and erodes shorelines and river banks.
Visit our
climate change page for information on what communities and individuals can do to mitigate and prepare for the changing climate.
Water levels in the Great Lakes, especially the Lake Michigan and Huron combo, have been a concern in recent years. But with this winter’s heavy snow and ice coverage, the water levels of both lakes may rise as much as 14 inches this spring and summer.
“This winter, the abundance of snow and near-record ice cover are the reasons for the rebound in water levels, according to Keith W. Kompoltowicz, a meteorologist with the Corps’ office in Detroit.
Snowfall around Lake Michigan is 30% higher than any time in the last decade, and ice cover on the lake is flirting with a record.
On Tuesday, ice on Lake Michigan reached 92.45%, according to the Great Lakes Environmental Research Laboratory in Ann Arbor, Mich. That’s the second highest level since the record of 93.1% in 1977…
But the winter of 2013-’14 can only have so much effect on the lakes. Water levels are cyclical and rise and fall due to a series of events over many months and years, Kompoltowicz said.
Even if the next six months mirrors the rainy spring of 2013, Kompoltowicz said, Lake Michigan and Lake Huron might reach within a few inches of the lakes’ long-term average. The Corps doesn’t make predictions beyond six months.”
Read more about the lake levels and the potential effects at the link above.
The guidebook serves as a toolkit of sorts to help planners, administrators, and others formulate comprehensive plans and responses to current and future effects resulting from a changing climate. The guidebook addresses a number of water related issues and vulnerabilities, including flood protection and mitigation, meeting drinking water needs, and more.
Illinois-Indiana Sea Grant’s extension climatologist Molly Woloszyn assisted in the creation of the toolkit, specifically in drafting the guidebook’s Primary Impacts of Climate Change in the Chicago Region appendix (PDF), along with the Illinois State Climatologist Office and the Midwestern Regional Climate Center. The section reviews the state of scientific knowledge regarding climate change in northeastern Illinois with a particular focus on variables of interest to municipalities. The section offers information on several anticipated impacts from changing climate conditions, including periods of heavy rain and corresponding flooding, increased drought conditions, weather variability that can affect utilities, and additional concerns.
The guidebook is one part of northeastern Illinois’ comprehensive plan GO TO 2040, which addresses environmental impacts, energy efficiency, transportation needs, and other areas of concern for growing municipal populations in the coming years.
Cities throughout the U.S., especially those with aging infrastructure and water management issues, are implementing more and more green features in their planning. Some simple changes and additions can help reduce the burden on older systems, reducing issues of flooding, runoff, and more.
From The Atlantic Cities:
“Portland, Oregon, Washington, D.C., and Seattle are just some of the cities that have pioneered green infrastructure projects. In Philadelphia, the city will spend some $3 billion over 25 years on such infrastructure as part of its Green City, Clean Waters program.
In the Midwest, Indianapolis is leading the way. Stormwater planters and bioswales with native grasses run almost the entire length of the city’s Cultural Trail, a state-of-the-art bicycle and pedestrian route built over the past six years that wends its way for eight miles through the downtown streets of Indiana’s largest city.”
Carbon dioxide is contributing to a change in the chemical makeup of the world’s oceans, which is known as ocean acidification. This process may make it more difficult for shellfish and coral to survive in this new environment. But the oceans may not be the only bodies of water threatened by this dangerous change.
From The Great Lakes Echo:
The increased carbon dioxide changing the water chemistry and ecology of oceans may also be affecting freshwater and the organisms that live in it.
“Based on our preliminary modeling and understanding of carbon cycles, we think similar acidification trends will take place in the Great Lakes to the degree that researchers are expecting in the oceans,” said Galen McKinley, a professor of atmospheric and oceanic sciences at the University of Wisconsin.
Visit the Great Lakes Echo for the full article, which details potential impacts that these changes in water chemistry may have on the Great Lakes ecosystems.
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