Climate Change Climate Change Middle School Level: 7-9 Overview of - - PowerPoint PPT Presentation

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Climate Change Climate Change Middle School Level: 7-9 Overview of - - PowerPoint PPT Presentation

Sep 21, 2023 127 likes •426 views

Climate Change Climate Change Middle School Level: 7-9 Overview of content Overview of content 1. Weather vs. Climate: whats the difference? 2. What do we know about climate change? 3. Earths climate history 4. Human influence on climate 5.

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Climate Change Climate Change

Middle School Level: 7-9

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Overview of content Overview of content

  • 1. Weather vs. Climate: what’s the

difference?

  • 2. What do we know about climate change?
  • 3. Earth’s climate history
  • 4. Human influence on climate
  • 5. The future
  • 6. Renewable energy
  • 7. Discussion

Courtesy of the Center for Global and Regional Environmental Research

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  • 1. WEATHER VS. CLIMATE
  • 1. WEATHER VS. CLIMATE

What’s the difference?

Courtesy of the Center for Global and Regional Environmental Research

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What is weather? What is weather?

 Weather is what we experience every day  NWS: Iowa City, Iowa

Courtesy of the Center for Global and Regional Environmental Research

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What is climate? What is climate?

 What makes climate different from weather?  How would you describe the climate for…

  • A desert?
  • A rainforest?

Courtesy of the Center for Global and Regional Environmental Research

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Try this: Try this:

Courtesy of the Center for Global and Regional Environmental Research

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Summary Summary

 Weather is what we experience day-to-day

  • It can vary a lot

 Climate is a long-term average

  • It represents what is typical for a region

 Climate change is a big deal!

Courtesy of the Center for Global and Regional Environmental Research

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  • 2. WHAT DO WE KNOW ABOUT
  • 2. WHAT DO WE KNOW ABOUT

CLIMATE CHANGE? CLIMATE CHANGE?

Courtesy of the Center for Global and Regional Environmental Research

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Who is the climate change Who is the climate change authority? authority?

 Intergovernmental Panel on Climate Change (or, IPCC for short)  Combines all scientific information on climate change

Courtesy of the Center for Global and Regional Environmental Research

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Where does data come from? Where does data come from?

 Observing weather from weather stations

  • Only goes back about

100 years

Courtesy of the Center for Global and Regional Environmental Research

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SLIDE 11

Courtesy of the Center for Global and Regional Environmental Research

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Earth’s climate history Earth’s climate history

 Ice cores tell us Earth’s temperature history

Courtesy of the Center for Global and Regional Environmental Research

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How does CO How does CO2 change Earth’s change Earth’s climate? climate?

Courtesy of the Center for Global and Regional Environmental Research Image from Ruddiman 2000. Earth’s Climate: Past and Future. W.H. Freeman and Co.

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Summary Summary

 Temperature has changed naturally over Earth’s history  Ice volume has changed naturally over Earth’s history

Courtesy of the Center for Global and Regional Environmental Research

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Courtesy of the Center for Global and Regional Environmental Research

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CO CO2 is increasing in our is increasing in our atmosphere atmosphere

Courtesy of the Center for Global and Regional Environmental Research

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The “Hockey Stick” The “Hockey Stick”

Courtesy of the Center for Global and Regional Environmental Research

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 CO2 is not the only Green House Gas

  • Methane
  • Water

vapor

Courtesy of the Center for Global and Regional Environmental Research

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Effects of our changing Effects of our changing climate climate

 YouTube: Arctic methane vent  YouTube: Arctic sea ice melt 2007  YouTube: First year sea ice

Courtesy of the Center for Global and Regional Environmental Research

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Models predict more change Models predict more change

 Models show us what will likely happen if we:

  • Don’t change

anything

  • Change a

little

  • Change a lot
  • Stop

releasing all GHGs

Courtesy of the Center for Global and Regional Environmental Research

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Our changing oceans Our changing oceans

 Sea ice is melting  So is Antarctica, and Greenland

Courtesy of the Center for Global and Regional Environmental Research Images from Roger Braithwaite.

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Sea level rise with melting ice Sea level rise with melting ice caps caps

Courtesy of the Center for Global and Regional Environmental Research

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Summary Summary

 The future of our climate depends on how we react now.  Melting polar ice will have an impact on society and the economy unless we do something.

Courtesy of the Center for Global and Regional Environmental Research

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  • 6. RENEWABLE ENERGY
  • 6. RENEWABLE ENERGY

Courtesy of the Center for Global and Regional Environmental Research

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Solar panels Solar panels

 Harnesses the energy from the sun  Technology of solar panels continue to improve  Equipped with battery storage

  • Have electricity for

night time and cloudy days

Courtesy of the Center for Global and Regional Environmental Research

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Wind power Wind power

Courtesy of the Center for Global and Regional Environmental Research

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Biodiesel and Ethanol Biodiesel and Ethanol

 Ethanol from:

  • Corn, sugar cane,

sugar beets, potatoes

 Biodiesel from:

  • Waste cooking oil,

soybeans, canola

 Cars are already able to run on ethanol and biodiesel.

Courtesy of the Center for Global and Regional Environmental Research

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  • 7. DISCUSSION
  • 7. DISCUSSION

Courtesy of the Center for Global and Regional Environmental Research

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For more information… For more information…

 IPCC  NOAA  NWS

Courtesy of the Center for Global and Regional Environmental Research