In this recitation exercise you will assess two elements of the global warming issues: (1) uncertainties in future greenhouse gas emissions and thus in the future load of greenhouse gases (especially carbon dioxide) in the atmosphere, and (2) the geo-political aspects of policies to reduce carbon dioxide build-up in the atmosphere and thus the risk of global warming. This is a demanding exercise that requires you to read technical reports on the web and draw your own conclusions. The material will be introduced in class and in recitation, and you have two weeks and Thanksgiving Break to work on this two-part exercise.
In this first part of this exercise you will discuss in recitation, and examine on your own or in groups outside the classroom, the latest set of greenhouse gas emissions scenarios (projections) created by the UN’s Intergovernmental Panel on Climate Change (IPCC). These projections are all laid out in a very detailed report called the “Special report on Emissions Scenarios” (SRES) available at:
http://www.grida.no/climate/ipcc/emission/index.htm
You will find everything you need from this web link, but you will also find that the material is quite thick, and demanding, so be sure to give it some time. The material will be introduced in class, in recitation, and you have two weeks and Thanksgiving Break to work on this two-part exercise.
As you read the SRES, you will immediately see that essentially all the scenarios show increasing uncertainty, or spread, through time. Depending on the underlying assumptions about economic growth and population, and some complex interactions between, say, agriculture and forestry.
Your mission is to identify sources of uncertainty in the projections, either in driving forces or interactions of factors.
Student
name:___________________________
TA
name:___________________________
Instructions: After you have discussed the SRES
scenarios in recitation, take time to read/skim the “Summary for Policy
Makers,” the “Technical Summary,” and at least skim Chaps. 2,
5 and 6, to develop pertinent answers to these five questions.
For 1-3
briefly describe uncertainties in the relationship that could increase or
decrease GHG emissions over time:
1. The
relationship between population and gross world product.
2. The
relationship between gross World product and Energy Intensity.
3. The
relationship between Energy Intensity and Carbon Intensity.
4. Give at least
three distinct reasons that several of the projected GHG emissions decline
after about 2050.
As with other
trans-boundary environmental problems, this one has led to an international
agreement, the so-called “UN Framework Convention on Climate Change” and the
“Kyoto Protocol,” in which the leading industrial nations of the world agree to
limit their emissions according to targets and timetables that are designed at
least to slow the build-up and resulting warming, and eventually stabilize
atmospheric CO2. The Kyoto agreement
contains provisions that recognize some important geographical (geo-political)
elements of the problem: (a) the most developed countries are asked to cut
emissions in the first round of actions because they have caused most of the
problem in the first place, and can do so with less social harm; (b) there is
an obvious need to bring developing countries into the agreement eventually,
and technological solutions are to be made available in ways that recognize
that developing countries may not have the wealth or expertise to implement
energy efficiency.
Backgrounder:
You can read
about
And, for a
U.S.-centered perspective, see:
http://www.ncseonline.org/NLE/CRSreports/climate/clim-25.pdf
The main
geopolitical issues include:
·
Differential obligations to reduce emissions by the
industrial countries (the Most developed Countries, or MDCs)
compared to developing countries (the Least Developed Countries, or LDCs—often referred to as “the South” in the lingo of
international development), based on the simple equity of those who caused most
of the problem having the obligation to fix most of the problem.
·
Arguments by LDCs for favorable
terms of trade, and technology transfer from MDCs to LDCs in order to speed up their development of efficient
industrial/energy systems; this is part of the LDCs
have a “right to develop,” either by following the carbon-based path of the MDCs or by getting help to leapfrog to post-carbon energy
systems. If they use similar energy paths as the MDCs,
then as the economies of the developing countries grow, they will become big
(maybe even larger) contributors in the future
·
Arguments that the impacts of global warming will not be
evenly distributed, and that less developed countries have more to lose (their
resource-based economies are more sensitive to climate) and some are in more
vulnerable settings (coastal zones like
·
The debate in the
·
Arguments that countries that championed
For a look at
International Emissions projections, see:
http://yosemite.epa.gov/OAR/globalwarming.nsf/content/EmissionsInternationalProjections.html
For a look at
http://yosemite.epa.gov/oar/globalwarming.nsf/content/emissionsindividual.html
For maps of
greenhouse gas emissions, see:
For an essay
on the equity issues, see: http://www.ecoequity.org/ceo/ceo_6_1.htm
And see: http://pdf.wri.org/opc_chapter1.pdf
For the
http://www.whitehouse.gov/news/releases/2001/06/20010611-2.html
For a wide
range of skeptical views of global warming and the
http://www.cato.org/current/global-warming/index.html
Student name:___________________________
TA
name:___________________________
Instructions: After you have discussed the
international agreement on climate change in recitation, answer these four
questions with short, pertinent answers. Give
each question a YES or a NO, then explain briefly WHY.
5. Is an
international treaty in which each signatory agrees to immediately start to
limit greenhouse gas emissions the right response to the threat of global
warming? Yes or No, and Why?
Now, recognizing that there is be
an international treaty:
6. Should the LDCs be included in the early rounds of greenhouse gas
emission reduction targets” Yes or No,
and Why?
7. Should LDCs be given preferential terms of trade for technologies
that allow them to develop along a less carbon-rich path? Yes or No, and Why?
8. Should
vulnerability to climate change, including a country’s ability to adapt to
global warming, be used as a factor in allocating limits on emissions and/or
terms of development assistance? Yes or
No, and Why?