Indiana Climate Change Impacts Assessment

What does climate change mean for Indiana?

Our climate shapes our lives. The ways we build our roads, manage our farms, move our water and use energy are all influenced by our unique Indiana climate. But our climate has been changing, and it will continue changing in ways that affect our productivity, our safety, and our livelihoods. We need to know what climate change means for Indiana.

Climate Change Science for Indiana

Scientists and decision makers from across the state are working together to develop a series of easily understandable reports that shows how a changing climate will affect state and local interests. Led by the Purdue Climate Change Research Center (PCCRC), the Indiana Climate Change Impacts Assessment (IN CCIA) provides the latest scientific research to help Hoosiers understand and prepare for the impacts of a changing climate.

Throughout this process, we are ncreasing dialogue about Indiana’s changing climate and building a network of experts and citizens working on climate change issues across the state.

expert contributors

participating organizations

topic-based reports beginning March 2018

Over the last century, weather observations show that Indiana has become warmer and wetter. Indiana scientists have concluded these climate trends will continue and intensify, affecting the health and wellbeing of all Hoosiers.

Number of 90°F days per year

Today: 20 | 2050s: 74

Average coldest day of the year

Today: -7°F | 2050s: 0°F

Average date of last spring freeze

Today: April 20 | 2050s: April 5

Percent change in spring rainfall

2050s: +16%

Above data shows a comparison of historical conditions and future predictions for mid-century (average for the period 2011 to 2041) in central Indiana. Predicted values are based on a “business as usual” scenario where there are no changes to the amount of heat-trapping gases entering the atmosphere. Data from IN CCIA report Indiana’s Past and Future Climate compiled by experts at Purdue University, University of Notre Dame, Indiana University, Ball State University and the Midwest Regional Climate Center.

“For years, the images shown to us and the language we’ve used has made it really difficult for Hoosiers to see climate change as an urgent local issue. With the Indiana Climate Change Impacts Assessment, we’re changing the conversation and helping Hoosiers understand the ways a shifting climate affects our day-to-day lives.”

-- Melissa Widhalm, IN CCIA Coordinator

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