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Global Climate Change

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Global Climate Change Environmental Impacts: A Review and Reflection – PowerPoint PPT presentation

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Title: Global Climate Change


1
Global Climate Change
  • Environmental ImpactsA Review and Reflection

2
  • What should we worry about the most?

3
What should we tell our students?
  • Most important?
  • Most personally relevant?
  • Most dramatic?

4
Weve seen the data

5
Modern CO2 Measurements
6
Weve seen the data

7
is the increased greenhouse effect I'd bet the
mortgage it       Mark Serreze, NSIDC   
  • ARCTIC SEA ICE EXTENT - SEPTEMBER TREND,
    1978-2005


The area covered by sea ice
8
We have relevant stories for our students
  • MSNBC.com
  • Its official January was warmest on record
    U.S. forecasters say it was 8.5 degrees warmer
    than normal
  • The Associated Press
  • Updated 438 p.m. ET Feb. 7, 2006
  •  
  • WASHINGTON - January was a fair-weather friend.
  • Recording the warmest January on record allowed
    Americans to save on their heating bills. But
    like all good things, last months mildness seems
    to have been too good to last.
  • The countrys average temperature for the month
    was 39.5 degrees Fahrenheit, 8.5 degrees above
    average for January, the National Climatic Data
    Center said Tuesday. The old record for January
    warmth was 37.3 degrees set in 1953.

9
We have relevant stories for our students

                      
  • Global Warming Lending Strength to
    HurricanesWarmer waters fueling more
    powerful storms   WASHINGTON, September 2, 2005
    Because rising global temperatures have warmed
    the oceans, and warm oceans fuel hurricanes, many
    people have asked whether hurricane Katrina is
    connected to global warming. UCS

10
We have Early Warning Signs

11
Changes in Flowering Date
12
Mismatch of Bird Nesting Food Availability
13
Lets think outside our immediate realm of human
experience

14

15
What about the oceans?

16
Evolutionary Perspective
  • The living history of our planet spans 3.5
    billion years.
  • Life arose in our oceans about 3.5 bya
  • For the first 3 billion years, life was solely
    aquatic

17
Evolutionary Perspective
  • Photosynthesis was invented in the oceans (by
    cyanobacteria)
  • Photosynthesis produces oxygen gas (by splitting
    water molecules)
  • ? O2 makes complex life possible
  • ? O3 makes terrestrial life possible

18
Even Today
  • Ocean life accounts for over 90 of planets
    photosynthetic activity.

19
Oceans
  • Represent the cradle of life
  • What are the consequences of messing with your
    mother?

20
Oceans are warming
  • Effect on coast-line?
  • (Aside DDN articles)

21
How many gallons of water in the ocean?
1966 2006
Area of Pacific ocean (sq mi) 63,800,000 64,186,000
Ave. depth of Pacific ocean (ft) 14,050 14,049
of Earth surface covered by water 71 71
Gallons of H20 in oceans 361 quintillion(3.61 x 10 20)
SourceFacts Figures SourceUS Navy
22
Reference for volume of ocean
  • http//pao.cnmoc.navy.mil/educate/neptune/trivia/e
    arth.htm

23
Lethal Effects ofClimate Change-Coral Bleaching
24

25
Global Warning / Coral Reefs
  • Color Blindness
  • By Susan McGrath
  • The brilliant beauty of coral reefs has begun
    to disappear before our eyes, along with the
    incredible variety of marine life that surrounds
    them. It has taken only a slight increase in
    sea-surface temperatures to unravel one of the
    earths most ancient ecosystems.
  • SSTs rise just two degrees Fahrenheit above
    normal summer high temperatures for a period of
    just two weeks
  • http//magazine.audubon.org/features0312/color_bli
    ndness.html

26
Temperature increase in Ocean
  • Not discrete isolated event
  • Coastline
  • Weather/climate patterns effects
  • Marine, ultimately terrestrial ecosystems effects

27
Peak Oil
  • Economic crisis?
  • Ecologic Opportunity?
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