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Chapter 23 Global warming
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Quiz 3

• 1.Which patch of forest supports more interior
  forest species A or B (1 point)?
• A.
• B.
• 2. Why (1 points)?
• 3. Assume the picture to the right represents
  forest patches which supports more interior
  forest species A. or B. (1 point)
• 4. Why (1 points)?

A.
B.
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Quiz 4 on global warming

• Approximately what percentage of the earths
  atmosphere is carbon dioxide (2 points)?
• a. .04
• b. 5
• c. 10
• d. 50
• 2) Which one of the following are greenhouse
  gases (2 points)?
• methane
• Carbon dioxide
• nitrogen
• A and b. above
• B. and c. above

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Global warming quiz

• 3) Which one of the following is a known fact (2
  points)?
• The earths average temperature of the atmosphere
  is increasing
• Temperatures everywhere at all times are
  increasing
• Global warming is mostly caused by increases in
  solar output
• The temperature at the equator is increasing but
  not elsewhere
• 4) Explain the greenhouse effect? How does it
  cause global warming (or better stated global
  climate change) (4 points)

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Students for Environmental Awareness Meeting

• Lewis Hall 131
• 545 p.m., TODAY!
• Shirt designs and candy sale, etc.

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Three Facts

1. The Earths overall average atmospheric
   temperature is increasing
2. The overall greenhouse gas concentrations,
   especially carbon dioxide, is increasing in the
   atmosphere
3. Greenhouse gasses for the most part are
   anthropogenic (man-made), especially carbon
   dioxide

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The Fourth Fact

• 4) According to the Intergovernmental Panel on
  Climate Change (IPCC), there is a 90 likelihood
  climate change is due to humans.

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Fact Number One The Earths Temperature is
Increasing
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Fact Number One The Earth Is Warming
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Fact Number Two Carbon Dioxide concentration
(and other gasses) are increasing
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Recent Increases in Carbon Dioxide concentration
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How Does the Greenhouse Effect Happen?
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Is there a relationship between CO2 and
temperature?
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Are humans to blame?
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Who are the polluters?

• U.S. is 25 of the worlds emissions, but only 4
  of the worlds population

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Greenhouse Gas Emissions
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What does the Future look like?
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What Does the Future Look Like? Model Predictions
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GLOBAL WARMING Early Warning Signs
http//www.climatehotmap.org/
Fingerprints and Harbingers
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Hurricane and Cyclone intensities and frequencies
Hurricane Katrina, August 29, 2005
Cyclone Nargis, May 2008
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Who participates in the Kyoto Protocol?
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What will you/we do?Four Options

• Denial
• Preference
• Despair
• Change

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What is the Copenhagen (United Nations Climate
Change Conference)?

• December, 2009
• Will be a meeting of all nations, including U.S.
  to reduce carbon and greenhouse gas emissions
• U.S. action is tied to bill (American Clean
  Energy and Security Act) in Congress (passed the
  House, waiting for Senate to act)

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What about the U.S.?

• Supreme Court has ruled that CO2 is a pollutant
  and the U.S. Environmental Protection Agency has
  taken steps to control CO2 as required by U.S.
  law pursuant to this decision
• U.S. stimulus made a down payment on the
  necessary investment in clean energy and global
  warming solutions
• House of Representatives passed clean energy and
  global warming legislation that would require
  U.S. emissions to decline annually through 2050

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Easter Island Parable
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Change is imperative!

• Should assume worst-case scenario
• Should assume problem can be solved via
  technology and change in values and education
• The time to act is NOW!

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• The problem starts with individuals such as
  yourself.
• The more apathy, the bigger the problem becomes.
• If youre not part of the solution, youre part
  of the problem.