Sections 10.4
Name: ___________________________
1. Scientists believe there is a maximum temperature increase that we must not allow the Earth to pass.
a) Earth’s temperature has already risen by 0.74°C. To what maximum temperature rise do these scientists
hope to limit Earth?
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b) To keep Earth within this temperature rise, what is the maximum concentration of greenhouse gases we
must allow by the year 2050?
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c) To keep the maximum concentration to the number you mentioned in part (b), by how much must the
world reduce its annual production of greenhouse gases by the year 2050?
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Section 10.5
1. a) What one activity does the average Canadian do regularly that produces half of the individual greenhouse gas
emissions in Canada?
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b) Think of four ways that you and your family can reduce greenhouse gas emissions in this activity.
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2. Describe how reducing greenhouse gas emissions could improve your standard of living.
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3. How does tree planting reduce the impact of climate change?
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4. a) Write a few sentences describing what carbon offset credits are and why we should use them.
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b) What are two concerns with carbon offset credits?
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