30 Jun Global Climate Change Science Reflective Questions Help
Question Description
Instructions
Your essay answer should be clear and succinct, amounting to perhaps 3-5 sentences totaling 50 to 80 words; longer essays are strongly discouraged. It is recommended that you prepare your answer in a separate document from which you copy it into Canvas.
Question 1 5 pts
Is the temperature increase associated with increased concentrations of atmospheric CO2 globally uniform, or does it vary between continents and oceans, or show other spatial variations?
A strong answer will describe the variations in temperature changes in different regions, ideally citing values for temperature anomalies in °C relative to the 1951-1980 baseline. It will compare the temperature changes for continents and oceans and identify regions where the changes are most extreme.
Question 2 3 pts
Match the three processes that are associated with climate change resulting from increasing CO2 with the specific feedbacks that they trigger.
Loss of Arctic sea ice
Ocean acidification
Increasing ocean temperatures
Question 3 2 pts
Ice cores and/or marine sediments provide records of past glacial/interglacial cycles associated with major changes in ice volume. Select the two aspects of these climate cycles that are characteristic of these glacial/interglacial cycles.
Stepwise cooling and rapid warming
Rapid cooling and gradual warming
Increased dust during glaciations
Increased dust during interglacials
Higher levels of CO2 during glacials
Higher levels of CO2 associated with lower temperatures
Decreased 18O in forams during cold intervals
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