Global Warming 101, Grades 3-6 (2013 Version)


Published on

Published in: Technology, News & Politics
  • Be the first to comment

  • Be the first to like this

No Downloads
Total views
On SlideShare
From Embeds
Number of Embeds
Embeds 0
No embeds

No notes for slide
  • Significant loss of glaciers in Central Asia began around the 1930s, and become more dramatic in the second half of the 20th century and continue into the 21st century. Glacier area was reduced in the Tien Shan and in the Pamirs, including its largest Fedchenko Glacier. The debris-covered glacier tongue retreated by more than 1 km since 1933 and lowered by about 50 m since 1980.
  • Coastal and island tide-gauge data show that sea level rose by just under 20 cm between 1870 and 2001, with an average rise of 1.7 mm per year during the 20th century and with an increase in the rate of rise over this period. This is consistent with the geological data and the few long records of sea level from coastal tide gauges. From 1993 to the end of 2006, near-global measurements of sea level (between 65。N and 65。S) made by high precision satellite altimeters indicate global average sea level has been rising at 3.1 ア 0.4 mm per year.
  • Brainstorm a list of how this might effect Minnesotans. Be sure to include wildlife, tourism/recreation, agriculture, and human health.
  • Atmospheric CO2 has increased from a pre-industrial concentration of about 280 ppmv to about 367 ppmv at present (ppmv= parts per million by volume). CO2 concentration data from before 1958 are from ice core measurements taken in Antarctica and from 1958 onwards are from the Mauna Loa measurement site. The smooth curve is based on a hundred year running mean. It is evident that the rapid increase in CO2 concentrations has been occurring since the onset of industrialization. The increase has closely followed the increase in CO2 emissions from fossil fuels.
  • Global Warming 101, Grades 3-6 (2013 Version)

    1. 1. Climate Change: The Basics What is climate change and why is it happening?
    2. 2. Questions I hope to answer… 1. What is the difference between the greenhouse effect, climate change and global warming? 2. What proof do we have that climate change is happening? 3. Why is it happening?
    3. 3. The Greenhouse Effect The Earth is surrounded by a thin layer of gasses we call greenhouse gases. These gases are what make up our atmosphere. Source: NASA
    4. 4. The Greenhouse Effect The Sun’s energy passes through the car’s windshield. This energy (heat) is trapped inside the car and cannot pass back through the windshield, causing the inside of the car to warm up. © 2007National Wildlife Federation
    5. 5. The thickness of the atmosphere and the concentration of its gases influence the surface temperature on any planet. Source: Will Steger Foundation, Elizabeth Andre
    6. 6. What’s the difference? GLOBAL WARMING Is the increase of the Earth’s average surface temperature due to a build-up of greenhouse gases in the atmosphere. © 2007National Wildlife Federation CLIMATE CHANGE Is the long-term changes in climate, including average temperature and precipitation. It recognizes that, although the average surface temperature may increase, the regional or local temperature may decrease or remain constant.
    7. 7. What does “average” mean? • Climate is the average weather conditions over time. • Global warming refers to an increase in the Earth’s average temperature. Source:
    8. 8. How Global Warming Works Carbon Dioxide (CO2) Fossil fuels (coal, oil, natural gas) © 2007National Wildlife Federation
    9. 9. What proof do we have?
    10. 10. 1000 years of CO2 & temperature data Temperature (Northern Hemisphere) © 2007National Wildlife Federation Year 2000 1800 1600 1400 1200 1000 2000 1800 Parts Per Million Year 1600 1400 1200 1000 Temperature Increase (C) CO 2 Concentrations
    11. 11. Shrinking of Fedchenko Glacier in Tajikistan Source: Photo: V. Novikov (taken in summer 2006); data from the Tajik Agency on Hydrometeorology
    12. 12. Portage Glacier Alaska 1914 Photos: NOAA Photo Collection and Gary Braasch – WorldViewOfGlobalWarming.orgNWF/2007 2004
    13. 13. Source: Church, J.A. and White, N.J. (2006). A 20th century acceleration in global sea-level rise. Geophysical Research Letters, 33, L01602
    14. 14. Climate Change in the Midwest • Temperatures are rising, especially in winter. • Extreme rainfall events (24-hr and 7-day) are more frequent. • Winters are shorter. • Lake ice melts earlier, especially on smaller lakes. Source: Great Lakes Report, Union of Concerned Scientists
    15. 15. Why is climate change happening?
    16. 16. CO2 and the Industrial Revolution Source: TP Whorf Scripps, Mauna Loa Observatory, Hawaii, Institution of Oceanography (SIO), University of California La Jolla, California, United States, 1999
    17. 17. Burning of Fossil Fuels Pollution from Pollution from coal, Pollution from coal, natural coal, gas, natural gas, and oil natural gas, and oil and oil © 2007National Wildlife Federation
    18. 18. Credits Thank you to the National Wildlife Federation for giving permission to use slides from Climate Classroom. Hickey, Laura. (2007). Whats up with global warming? Retrieved, October 10, 2007, from, The Great Lakes report, as well as other regional reports, can be downloaded from the Union of Concerned Scientist website at: