1. Identify
natural and human-made causes of climate change visible in the computer
simulation. According to the computer
model, how have sources of heat-trapping pollution changed from 1750 to
today? How does the simulation predict
they will change by 2050?
2. According to
the computer model and your readings, which source(s) of heat-trapping
pollution contribute the most to climate change? Explain.
3. Recalling your observations from the
three time periods, how has the thickening blanket of heat-trapping pollution
affected Earth’s temperature between 1750 and today? How will the blanket and Earth’s temperature
look in 2050? Does the simulation
predict that positive feedbacks will kick in by 2050 (e.g., does the
temperature increase appear to be accelerating)? According to your readings, what might
explain positive feedbacks?
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