Present, and Future Dr. Jim Angel, State Climatologist Illinois - - PowerPoint PPT Presentation

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Present, and Future Dr. Jim Angel, State Climatologist Illinois - - PowerPoint PPT Presentation

Aug 01, 2023 351 likes •630 views

Climate Change in Illinois: Past, Present, and Future Dr. Jim Angel, State Climatologist Illinois State Water Survey Prairie Research Institute Natural Controls of Climate Change Natural processes that produce climate change on Earth

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Climate Change in Illinois: Past, Present, and Future

  • Dr. Jim Angel, State Climatologist

Illinois State Water Survey Prairie Research Institute

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Natural Controls of Climate Change

  • Natural processes that produce climate change on Earth

– Responsible for past climate change thousands to millions of years ago

Variations in solar activity Slow orbital changes

(Milankovitch Cycles)

Large volcanic eruptions

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Human Influence on the Climate System

Addition of heat trapping gases to the atmosphere Change in land cover Urbanization, Deforestation, Desertification

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Overall: 4 to 5 degree F increase by mid-century National Climate Assessment (2014)

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Where Was This Winter?

4 to 5 degrees above normal, comparable to mid-century projections with high emission scenario

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Projections for Illinois: National Climate Assessment (2014)

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Four Seasons

  • Winter
  • Spring
  • Summer
  • Fall

All Getting Wetter Over Time

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Increasing Spring Precipitation

  • Reduced workable field days
  • Planting delays
  • Replanting
  • Soil compaction
  • Drainage
  • Nitrogen loss
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4th National Climate Assessment

  • Assess the current and possible future impacts
  • n climate change on the US.
  • Midwest Focus:

– Agriculture – Forestry/Ecosystems – Health – Community – Transportation

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Key Messages

  • Illinois is getting warmer, wetter
  • Potential for more flooding, heat waves with

associated losses in health and wealth

  • More challenges to ag/forest/ecosystems from

mild winters, hot summers – disease, pests, flooding, drought …

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Thank You

Jim Angel Email: jimangel@illinois.edu Blog: climateillinois.wordpress.com Twitter: @JimAngel22