Looking awesome in my tuxedo
today!
HUB Quiz update:
OPTIONAL.
Complete quiz by 10pm
Thursday and it will replace
another lower daily grade.
• Please read the board
carefully!
Current Climate change effects
in the Antarctic
• Better known as
the Penguin
Activity
What we know for sure about
climate change:
• Mechanism of the greenhouse effect
• CO2 at the beginning of the Industrial
revolution: 280ppm
• CO2 today: 398ppm
• CO2 increases .5%/year
• Since 1860 global mean temp has
increased .6-.7oC (1.1-1.4oF)
IPCC: Intergovernmental Panel on
Climate Change
• UN group of scientists representing almost every
•
•
•
•
country
Jan 2007 – issued report on climate change.
Absolute agreement on anthropogenic cause of
current climate change.
“Warming of the climate system is unequivocal”
“There is very high confidence that the net
effect of human activities since 1750 has been
one of warming.”
What effects of these changes
are we already seeing?
CO levels currently
2
•
•
•
•
Mauna Loa Observatory - Hawaii
CO2 at beginning of Industrial revolution: 280 ppm
Current CO2 levels: 398ppm
(watch the movie – when is CO2 highest? Where??? Why???)
The poles are experiencing more
intense change
• Winter temps rising faster than summer
temps
• Average temperature change is double the
change at lower latitudes.
• 3-4oC in 50 years (5 - 7oF)
The importance of ice cover:
• The albedo effect:
• Incoming radiant
energy hits a white
surface and is
reflected – it bounces
without being
converted to infrared
energy
Today: determine relationships
AND relationships between some
abiotic factors:
• Air temperature
• Sea ice extent
• Winter snow
Make a prediction:
Predict the relationship
between one of the
biotic factors and one
of the abiotic factors
in this activity
• Biotic: krill, chinstrap
•
penguins, adelie
penguins
Abiotic: air
temperature, sea ice
extent, winter snow
Expert groups: Complete Part I
• examine data set
• Summarize key information provided
about your biotic or abiotic factor
• You have 15 minutes
Home Group:
• Go get: big paper, glue, 6 different cards,
colored pencils
• Make a concept map which shows
relationships between abiotic and biotic
factors.
• Include cards, arrows, explanations
• When you are sure about the
relationships, glue them down
So how did that prediction work out
for you?
• Describe something you learned about the
effects of climate change from doing this
activity.
Soooo . . . . . What does the
penguin activity show you?
• Feedback loops play a role in climate
change (identify them)
• Complexity of a system makes prediction
difficult (give an example)
• Biodiversity loss – populations may not be
able to adapt quickly enough
• A “little” change (.7 oC/1oF) is a big deal
Awkward segue!!!
Goals of this course:
• 1. Environmental literacy
• 2. preparation for AP test
• 3. Build college skills
Power up!
• www.ipcc.ch
• Intergovernmental Panel on Climate
Change