Clicker quiz: Carbon and the climate created by Sarah Wise, CIRES Education and Outreach, for use by faculty at U. of Colorado at Boulder for Focus the Nation, Jan. 31, 2008Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Clicker quiz:Carbon and the climatecreated by Sarah Wise, CIRES Education and Outreach, for use by faculty at U. of Colorado at Boulderfor Focus the Nation, Jan. 31, 20081. Which cycle does this diagram represent?a. Carbon b. nitrogen c. water d. phosphorousSource of Diagram: The Blue Planet, Skinner et al., 19991. Follow up discussion: What clues from the diagram did you use to choose your answer?2. How do human activities affect the carbon cycle?a. add pollution to the cycleb. add carbon to the cycle c. transfer carbon from earth to atmosphered. cause the cycle to slow or stop2. Follow up discussion: Why are all but c. incorrect?a. add pollution to the cycleb. add carbon to the cycle c. transfer carbon from earth to atmosphered. cause the cycle to slow or stop3. What do these two graphs show?a. CO2 increase iscausing warmingb. CO2 increase is strongly correlated with warming source of diagrams:Wikipedia: Keeling curve, global warming3. Follow up discussion:what is different betweencorrelation and causation?source of diagrams:Wikipedia: Keeling curve, global warming4. What do these diagrams suggest about the cause of global warming?a. increased greenhouse gases (e.g. CO2) can cause warmingb. natural variation in the sun is not correlated with recent warmingc. both a. and b. source of diagrams: Wikipedia, global warming4. Follow up: Has anyone learned about other possible explanations of warming, based on known causes?Discussion questions:-- is there a difference between global warming and climate change?-- how do you think climate change will affect your life?-- how do you think the problem of climate change may be resolved?-- what do your friends and family think about climate change?-- has the issue of climate change made you want to make changes in your