argumentative paper climate change

The Center for Global Studies

Climate change argumentation.

Carmen Vanderhoof, Curriculum and Instruction, College of Education, Penn State

Carmen Vanderhoof is a doctoral candidate in Science Education at Penn State. Her research employs multimodal discourse analysis of elementary students engaged in a collaborative engineering design challenge in order to examine students’ decision-making practices. Prior to resuming graduate studies, she was a secondary science teacher and conducted molecular biology research. 

• Subject(s):  Earth Science
• Topic:  Climate Change and Sustainability
• Grade/Level:  9-12 (can be adapted to grades 6-8)
• Objectives:  Students will be able to write a scientific argument using evidence and reasoning to support claims. Students will also be able to reflect on the weaknesses in their own arguments in order to improve their argument and then respond to other arguments.
• Suggested Time Allotment:  4-5 hours (extra time for extension)

This lesson is derived from Dr. Peter Buckland’s sustainability  presentation for the Center for Global Studies . Dr. Peter Buckland, a Penn State alumnus, is a postdoctoral fellow for the Sustainability Institute. He has drawn together many resources for teaching about climate change, sustainability, and other environmental issues. 

While there are many resources for teaching about climate change and sustainability, it may be tough to figure out where to start. There are massive amounts of data available to the general public and students need help searching for good sources of evidence. Prior to launching into a search, it would be worthwhile figuring out what the students already know about climate change, where they learned it, and how they feel about efforts to reduce our carbon footprint. There are many options for eliciting prior knowledge, including taking online quizzes, whole-class discussion, or drawing concept maps. For this initial step, it is important that students feel comfortable to share, without engaging in disagreements. The main idea is to increase students’ understanding about global warming, rather than focus on the potential controversial nature of this topic.

A major goal of this unit is to engage students in co-constructing evidence-based explanations through individual writing, sharing, re-writing, group discussion, and whole group reflection. The argumentation format presented here contains claims supported by evidence and reasoning (Claims Evidence Reasoning – CER). Argumentation in this sense is different from how the word “argument” is used in everyday language. Argumentation is a collaborative process towards an end goal, rather than a competition to win (Duschl & Osborne, 2002). Scientific argumentation is the process of negotiating and communicating findings through a series of claims supported by evidence from various sources along with a rationale or reasoning linking the claim with the evidence. For students, making the link between claim and evidence can be the most difficult part of the process.

Where does the evidence come from?

Evidence and data are often used synonymously, but there is a difference. Evidence is “the representation of data in a form that undergirds an argument that works to answer the original question” (Hand et al., 2009, p. 129). This explains why even though scientists may use the same data to draw explanations from, the final product may take different forms depending on which parts of the data were used and how. For example, in a court case experts from opposing sides may use the same data to persuade the jury to reach different conclusions. Another way to explain this distinction to students is “the story built from the data that leads to a claim is the evidence” (Hand et al., 2009, p. 129). Evidence can come from many sources – results from controlled experiments, measurements, books, articles, websites, personal observations, etc. It is important to discuss with students the issue of the source’s reliability and accuracy. When using data freely available online, ask yourself: Who conducted the study? Who funded the research? Where was it published or presented? 

What is a claim and how do I find it?

A scientific claim is a statement that answers a question or an inference based on information, rather than just personal opinion.               

How can I connect the claim(s) with the evidence?

That’s where the justification or reasoning comes in. This portion of the argument explains why the evidence is relevant to the claim or how the evidence supports the claim.

Implementation

Learning context and connecting to state standards.

This interdisciplinary unit can be used in an earth science class or adapted to environmental science, chemistry, or physics. The key to adapting the lesson is guiding students to sources of data that fit the discipline they are studying.

For  earth science , students can explain the difference between climate and weather, describe the factors associated with global climate change, and explore a variety of data sources to draw their evidence from.  Pennsylvania Academic Standards  for earth and space science (secondary): 3.3.12.A1, 3.3.12.A6, 3.3.10.A7.    

For  environmental science , students can analyze the costs and benefits of pollution control measures.  Pennsylvania Academic Standards  for Environment and Ecology (secondary): 4.5.12.C.          

For  chemistry  and  physics , students can explain the function of greenhouse gases, construct a model of the greenhouse effect, and model energy flow through the atmosphere.   Pennsylvania Academic Standards  for Physical Sciences (secondary): 3.2.10.B6.      

New Generation Science Standards (NGSS) Connections

Human impacts and global climate change are directly addressed in the NGSS.  Disciplinary Core Ideas  (DCI): HS-ESS3-3, HS-ESS3-4, HS-ESS3-5, HS-ESS3-6.     

Lesson 1: Introduction to climate change

• What are greenhouse gases and the greenhouse effect? (sample answer: greenhouse gases like carbon dioxide and methane contribute to overall heating of the atmosphere; these gases trap heat just like the glass in a greenhouse or in a car) 
• What is the difference between weather and climate? (sample answer: weather is the daily temperature and precipitation measurements, while climate is a much longer pattern over multiple years)

Drawing of the greenhouse effect  – as individuals or in pairs, have students look up the greenhouse effect and draw a diagram to represent it; share out with the class

• Optional: figure out students’ beliefs about global warming using the Yale Six Americas Survey (students answer a series of questions and at the end they are given one of the following categories: alarmed, concerned, cautious, disengaged, doubtful, dismissive).

Lesson 2: Searching for and evaluating evidence

• Compare different data sources and assess their credibility
• Temperature
• Precipitation
• Storm surge
• Ask the students to think about what types of claims they can make about climate change using the data they found (Sample claims: human activity is causing global warming or sea-level rise in the next fifty years will affect coastal cities like Amsterdam, Hong Kong, or New Orleans).

Lesson 3: Writing an argument using evidence

• Claim – an inference or a statement that answers a question
• Evidence – an outside source of information that supports the claim, often drawn from selected data
• Reasoning –  the justification/support for the claim; what connects the evidence with the claim
• Extending arguments –  have students exchange papers and notice the strengths of the other arguments they are reading (can do multiple cycles of reading); ask students to go back to their original argument and expand it with more evidence and/or more justification for why the evidence supports the claim
• Anticipate Rebuttals  – ask students to think and write about any weaknesses in their own argument

Lesson 4: Argumentation discussion  

• rebuttal  – challenges a component of someone’s argument – for example, a challenge to the evidence used in the original argument
• counterargument  – a whole new argument that challenges the original argument
• respect group members and their ideas
• wait for group members to finish their turns before speaking
• be mindful of your own contributions to the discussion (try not to take over the whole discussion so others can contribute too; conversely, if you didn’t already talk, find a way to bring in a new argument, expand on an existing argument, or challenge another argument)  
• Debate/discussion  – In table groups have students share their arguments and practice rebuttals and counterarguments
• Whole-group reflection  – ask students to share key points from their discussion

Lesson 5: Argumentation in action case study

Mumbai, india case study.

Rishi is a thirteen year old boy who attends the Gayak Rafi Nagar Urdu Municipal school in Mumbai. There is a massive landfill called Deonar right across from his school. Every day 4,000 tons of waste are piled on top of the existing garbage spanning 132 hectares (roughly half a square mile). Rishi ventures out to the landfill after school to look for materials that he can later trade for a little bit of extra money to help his family. He feels lucky that he gets to go to school during the day; others are not so lucky. One of his friends, Aamir, had to stop going to school and work full time after his dad got injured. They often meet to chat while they dig through the garbage with sticks. Occasionally, they find books in okay shape, which aren’t worth anything in trade, but to them they are valuable.

One day Rishi was out to the market with his mom and saw the sky darken with a heavy smoke that blocked out the sun. They both hurried home and found out there was a state of emergency and the schools closed for two days. It took many days to put out the fire at Deonar. He heard his dad say that the fire was so bad that it could be seen from space. He wonders what it would be like to see Mumbai from up there. Some days he wishes the government would close down Deonar and clean it up. Other days he wonders what would happen to all the people that depend on it to live if the city shuts down Deonar.

Mumbai is one of the coastal cities that are considered vulnerable with increasing global temperature and sea level rise. The urban poor are most affected by climate change. Their shelter could be wiped out by a tropical storm and rebuilding would be very difficult.

Write a letter to a public official who may be able to influence policy in Mumbai.

What would you recommend they do? Should they close Deonar? What can they do to reduce air pollution in the city and prepare for possible storms? Remember to use evidence in your argument.  

If students want to read the articles that inspired the case study direct them to: http://unhabitat.org/urban-themes/climate-change/

http://www.bloomberg.com/slideshow/2012-07-06/top-20-cities-with-billions-at-risk-from-climate-change.html#slide16

http://www.bloomberg.com/news/articles/2015-07-26/smelly-dumps-drive-away-affordable-homes-in-land-starved-mumbai

http://www.cnn.com/2016/02/05/asia/mumbai-giant-garbage-dump-fire/

Resources:    

• Lines of Evidence  video  from the National Academies of Sciences, Engineering, and Medicine  http://nas-sites.org/americasclimatechoices/videos-multimedia/climate-change-lines-of-evidence-videos/  
• Climate Literacy and Energy Awareness Network  (CLEAN) 
• Climate maps  from the National Oceanic and Atmospheric Administration
• Sources of data from  NASA
• Explore the original source of the  Proceedings of the National Academies of Sciences (PNAS) study

Differentiated Instruction

• For visual learners – use diagrams, encourage students to map out their arguments prior to writing them
• For auditory learners – use the lines of evidence video
• For ESL students – provide them with a variety of greenhouse gases diagrams, allow for a more flexible argument format and focus on general meaning-making – ex. using arrows to connect their sources of evidence to claims
• For advanced learners – ask them to search through larger data sets and make comparisons between data from different sources; they can also research environmental policies and why they stalled out in congress 
• For learners that need more support – print out excerpts from articles; pinpoint the main ideas to help with the research; help students connect their evidence with their claims; consider allowing students to work in pairs to accomplish the writing task 

Argument write-up  – check that students’ arguments contain claims supported by evidence and reasoning and that they thought about possible weaknesses in their own arguments. 

Case study letter  – check that students included evidence in their letter.

References:

Duschl, R. A., & Osborne, J. (2002). Supporting and promoting argumentation discourse in science education.

Hand, B. et al. (2009) Negotiating Science: The Critical Role of Argumentation in Student Inquiry. Portsmouth, NH: Heinemann.

McNeill, K. L., & Krajcik, J. (2012). Claim, evidence and reasoning: Supporting grade 5 – 8 students in constructing scientific explanations. New York, NY: Pearson Allyn & Bacon.

Sawyer, R. K. (Ed.). (2014). The Cambridge handbook of the learning sciences. New York, NY: Cambridge University Press.

https://www3.epa.gov/climatechange/kids/basics/today/greenhouse-gases.html

http://unhabitat.org/urban-themes/climate-change/

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Climate Change: What Must Be Done, Now

Writers argue for eating less meat, relocating to safer zones, promoting nuclear energy and passing a carbon tax.

To the Editor:

Re “ Adults Are Failing Us on Climate ,” by Greta Thunberg, Adriana Calderón, Farzana Faruk Jhumu and Eric Njuguna (Opinion guest essay, Sunday Review, Aug. 22):

I’m upset. I’m worried. I am angry because the adults have ruined Earth for my generation! You have trashed this world; you have polluted it. The fact that I, a 10-year-old, have to write this letter is proving your failure.

But if you believe that we can save the planet, then you can embrace change. You can vote for world leaders who will stop climate change! There are billions of children around the world, and all of us deserve to live in a world with clean oceans, clean air and a healthy planet.

Our lives are already being affected by climate change. Think about how horrible life could be for the next generation if we don’t act now. Heat waves would be so terrible they could actually make parts of the planet unsafe for us. And rising sea levels would be so serious that some coastal areas could become uninhabitable. We are at the beginning of a mass extinction; it’s been estimated that up to 200 species of plants and animals go extinct every single day , and that isn’t acceptable.

We must push world leaders to act on climate change so that life can continue. Change is coming, and only we can fix the future.

Lily G. Haussamen Las Cruces, N.M.

It is time to get serious. The conclusions of the sixth Intergovernmental Panel on Climate Change report on climate change are devastating, and, unfortunately, not surprising. It’s too late to stop the natural disasters, conflicts and resource shortages that are coming.

For those of us who cannot afford to colonize space, here is my dead serious advice: Plan immediately to relocate to a buffer zone — the Great Lakes region or the Northeast — and buy property. Stake yourself on high ground and purchase flood insurance, sewer backup insurance and every kind of insurance. Hook yourself up to solar panels and a backup generator. Build swales and retention ponds to collect excess floodwater. Grow your own food.

If you haven’t already, scrap plans to have (or have more) children. Use the energy you would put toward nurturing a family into nurturing your community and fighting for survival on an increasingly inhospitable planet.

Demanding action from politicians is not enough. Run for office and get other climate activists to run for office. We need a government that actually protects our air, water and soil. Soon it will be a matter of life or death, if it is not already.

Clara Fang Detroit The writer is founder of Climate Diversity.

Re “ Humanity Must Take a Stand on Climate ” (editorial, Aug. 15):

There is no doubt about The Times’s commitment to climate change. So it’s very hard to understand how your editorial can entirely neglect agriculture, which causes roughly one third of direct emissions .

The United Nations predicts a steady increase in meat consumption over the next three decades, and with that increase will come huge increases in carbon emissions, plus methane and nitrous oxide, which are 30 and 300 times more warming than carbon. Education has not stemmed the tide, but making meat from plants and cultivating meat from cells could. No one is coming for anyone’s burger. These technologies create products that are indistinguishable from the meat Americans love, but with a fraction of the direct and indirect adverse climate impact .

We can’t keep ignoring the contribution of agriculture to climate change. If we really believe that climate change is “code red for humanity,” the climate community should support government funding for research as well as private sector incentives for plant-based and cultivated meat.

Bruce Friedrich Washington The writer is the founder and chief executive of the Good Food Institute.

As you say, the industrial world has known about this problem for decades but has done little. The science is clear-cut, but the politics are anything but. Any meaningful actions in the United States are met with stiff resistance from mainly one political party.

Having been concerned about this for a long time, including teaching about the problem at the University of California San Diego, I’m left wondering if before the planet can return to prehumanity conditions, humans have to cease to exist.

Jeffrey Bada Encinitas, Calif. The writer is professor emeritus of marine chemistry, Scripps Institution of Oceanography, University of California San Diego.

Yes, a hotter future for this beautiful Earth is now locked in. And yes, we can and must act immediately to prevent the worst effects and preserve a livable world for our children, grandchildren and all beings.

However, the measures you recommended for mitigating this crisis left out one crucial tool: putting a price on carbon. Prominent economists agree that pricing carbon is the quickest and most effective way to immediately begin to bring down greenhouse gases in the atmosphere and stop escalating temperatures. Returning revenues to American households would help pay for the rising costs of goods and energy, and spur innovation in renewable energy.

Linda Reichert Chester Springs, Pa.

The editorial calls for big investments in wind, solar and nuclear power to move away from fossil fuels and get to zero net carbon emissions by 2050. Although unpopular, nuclear power will play a vital role that must not be undervalued.

While it’s been comforting to see the adoption of renewable power sources (hydro, wind and solar) and the grass roots efforts by citizens’ groups to get a carbon fee and dividend program passed by Congress, it’s not enough. Projections by the Energy Information Administration show that renewables will only cover about 42 percent of our demand for power by 2050. Nevertheless, we must fully phase out fossil fuels by then.

The only way to fill the gap is to accelerate the adoption of nuclear power. After high-profile incidents like Fukushima, the world has been moving in the other direction. We need to reverse this trend and rapidly deploy newer, safer and more cost-effective fourth-generation nuclear power technology . This is essential to halt the accelerating effects of climate change and buy us enough time to implement long-term power solutions.

William L. Bain Bellevue, Wash.

Re “ G.O.P. Shifts on Climate, but Not on Fossil Fuels ” (front page, Aug. 14):

The minuscule changes in policy positions of Republicans acknowledging that climate change is, at least in part, human-caused are an example of cynicism on steroids. It is not because they now understand the science better. It is because the position of denial is so out of step that it’s untenable, even for Republicans comfortable with the Big Lie.

They remain comfortable with another big lie — that we can continue burning fossil fuels and still be OK. They will trot out glib phrases meant to dismiss concern about emissions. They will try any spin to protect fossil fuel interests. Now that they are acknowledging the reality of human-caused climate change, protecting Big Oil is a stunning display of callous cynicism toward the citizens facing climate disasters.

Republicans already know that a carbon tax would reduce emissions and avoid an economic downturn, but they won’t support it until public opinion gives them no choice.

Gary M. Stewart Laguna Beach, Calif.

In an unintended way, Senator Bill Cassidy is absolutely correct when he says, “We cannot live without fossil fuels or chemicals, period, end of story.”

If this level of policy analysis continues to prevail on Capitol Hill, it is “end of story.” Of course we can’t shut down the petrochemical industry overnight, but we must transition quickly to a clean energy economy. The technology exists to do this. What doesn’t exist yet is the political will of the majority of our representatives, Republican and Democrat, to break away from their corporate benefactors and move quickly toward power generation that does not burn fossil fuels.

People, you and I, must get involved to get the message through to our politicians. Otherwise, “end of story” is an apt characterization for our planet.

John Burr Jacksonville, Fla.