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1/7/24, 3:48 PM AP Environmental Science https://edenpr.schoology.com/external_tool/2837838207/launch 1/7 AP ENVIRONMENTAL SCIENCE : GLOBAL CHANGE : 08.03 GLOBAL CLIMATE CHANGE Assessment The Earth has undergone climate change throughout geologic time, with major shifts in global temperatures causing periods of warming and cooling as recorded with CO data and ice cores. However, current climate change is due to anthropogenic (human-made) sources of recent decades. Winds generated by atmospheric circulation help transport heat throughout the Earth. Oceanic currents, or the ocean conveyor belt, carry heat throughout the world. Climate change affects circulation patterns in wind and oceans, which inﬂuences global weather patterns. Earth's polar regions are responsible for reﬂecting sunlight and heat back to space, but with sea ice dwindling, more heat is building in the polar regions, increasing global warming. This positive feedback loop is melting more sea ice and thawing tundra, releasing greenhouse gases like methane, which increases global warming even further. Some effects of climate change include rising temperatures, melting permafrost and sea ice, rising sea levels, disrupted marine and polar ecosystems, and displacement of coastal populations. Climate change can also affect soil through changes in temperature and rainfall, which can impact soil's viability and potentially increase erosion. For this lesson's science skills, you interpreted data evidence to support the theory that current climate change is due to anthropogenic (human-made) sources of recent decades. 2 Global Climate Change Lab Lab Activity You know that greenhouse gases absorb and emit infrared radiation in our atmosphere. The effect of these greenhouse gases is to warm the atmosphere to the life-friendly temperatures we expect on Earth. Without these greenhouse gases, Earth's temperature would be too cold to support life as we know it. However, the global climate has become warmer in recent decades. Carbon dioxide and water vapor, both of which are greenhouse gases, are products of fossil fuel combustion. Scientists are looking closely at the connection between increased fossil fuel use, the

1/7/24, 3:48 PM AP Environmental Science https://edenpr.schoology.com/external_tool/2837838207/launch 2/7 increased production of carbon dioxide as the result of burning more fossil fuels, and the increasing climate temperatures. In this virtual lab activity, you will examine the effects of increasing greenhouse gas concentrations to Earth’s atmosphere and determine how this increase is affecting Earth’s climate. You will also discuss the consequences of climate change to Earth’s biosphere. Lab Report and Rubric Download and complete the Global Climate Change Lab Report as you work through the steps of the lab activity. Be sure to review the grading rubric before submitting the lab report to your instructor. Use this student example to review how to complete a lab report. Global Climate Change Lab Grading Rubric Master Scientist Skilled Scientist Developing Scientist Novice Scientist Title and Objective 3 points The title and objective represent the purpose of the experiment. They are stated with clear and concise language that avoids ambiguity. 2 points The title and objective represent the purpose of the experiment. They are stated with concise language, but the purpose is slightly vague . 1 point The title and objective represent the purpose of the experiment. However, the language used adds ambiguity to the purpose or the title, or the objective is missing . 0 points Both the title and objective are missing . 

1/7/24, 3:48 PM AP Environmental Science https://edenpr.schoology.com/external_tool/2837838207/launch 3/7 Master Scientist Skilled Scientist Developing Scientist Novice Scientist Hypothesis 3 points The hypothesis predicts and clearly explains how the variables of the experiment are related. 2 points The hypothesis predicts and attempts to explain how the variables of the experiment are related. 1 point The hypothesis makes a prediction but does not explain how the variables of the experiment are related. 0 points The report does not include a hypothesis. Procedures 4 points The procedures include clear and concise language, numbered steps, and appropriate details for others to follow and repeat the experiment. 3 points The procedures include clear and concise language and numbered steps, but they are missing some important details needed for others to follow and repeat the experiment. 2–1 points The procedures lack clear and concise language, and/or numbered steps, and/or appropriate details for others to follow and repeat the experiment. 0 points The report does not include procedures.

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