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Climate Change: Outlook for Ohio to 2050. Thomas W. Blaine, Ph.D. Associate Professor Ohio State University Extension October 15, 2009. Ohio’s climate has changed in the past 150 years. it is about 1.2 degrees F warmer in the 2000s than in the 1860s

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climate change outlook for ohio to 2050

Climate Change: Outlook for Ohio to 2050

Thomas W. Blaine, Ph.D.

Associate Professor

Ohio State University Extension

October 15, 2009

ohio s climate has changed in the past 150 years
Ohio’s climate has changed in the past 150 years
  • it is about 1.2 degrees F warmer in the 2000s than in the 1860s
  • the northern portion has warmed more than the south
  • the northern portion has gotten wetter, while the south has received less precipitation
looking out to 2050
Looking out to 2050

Ohio’s average warming will be about the same as for the planet generally

if we assume CO2 at 450 PPM, and an average warming of 1.75 to 2.00 degrees, then:

climate zones will shift
climate zones will shift

imagine northern tier counties like

Hancock, Richland, Wayne and Mahoning with climates we see today in southern tier counties like Adams, Scioto, Lawrence, and Gallia

the greatest temperature changes would occur in the winter months
the greatest temperature changes would occur in the winter months
  • winters will be mild
  • Lake Erie will not freeze (winter of 2001-2002 was like this)
  • winters will be rainier and less snowy
  • there will be an increased tendency toward more “ice storms” – freezing rain events
slide7
Lake Erie levels will likely fall due to increased evaporation and use of water resources for irrigation

this will present some challenges to navigation and marinas – more frequent dredging will be required

cold water fish species like musky and trout would begin to be replaced by other species like blue gill and bass

challenges and opportunities for agriculture
Challenges and opportunities for agriculture
  • farmers are resilient and will adapt
  • the 120 day corn we currently see grown in the south will replace the 105 day corn currently grown in the north
  • crops not currently grown in the state will likely be introduced – such as cotton in the south
challenges and opportunities for agriculture continued
Challenges and opportunities for agriculture (Continued)
  • Livestock operations will be under pressure -particularly dairy - milk per cow is negatively associated with higher summer temperatures (St-Pierre et al, 2003)
  • increased tendency for summer drought will challenge farmers, and will probably lead to more reliance on irrigation
annual household energy demand will likely fall
Annual household energy demand will likely fall

winter household heating requirements will fall substantially - more than offsetting increased demand for cooling in the summer

management matters decisions matter
Management matters – decisions matter

Much of what happens will depend upon how we respond to the challenges and opportunities of living in a warmer Ohio

references reading
References/ Reading
  • Climate Change Impacts on the United States: The Potential Consequences of Climate Variability and Change (2004). A Report of the National Assessment Synthesis Team, U.S. Global Change Research Program, available at http://www.gcrio.org/NationalAssessment/index.htm
  • Global Climate Change: NASA’s Eyes on the Earth (2009). Jet Propulsion Laboratory, California Institute of Technology, available at http://climate.jpl.nasa.gov/
  • Blaine, Thomas W. (1996). Global Climate Change, CDFS 186-96, available at http://ohioline.osu.edu/cd-fact/pdf/0186.pdf
references reading continued
References/Reading (Continued)
  • St-Pierre, Cobanov and Schnitkey (2003). Economic Losses from Heat Stress by US Livestock Industries, Journal of Dairy Science. 86: E52-E77
  • Christy, J.R. and R.W. Spencer, (2007). “Taking Earth\'s Temperature,” UAH News, The University of Alabama in Huntsville, available at http://www.uah.edu/News/climatebackground.php
  • 2007 Intergovernmental Panel on Climate Change Assessment Reports, US Environmental Protection Agency, available at http://www.epa.gov/climatechange/ipcc2007.html
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