Scenario relating to climate change

Reference no: EM133674031

Question

onsider this scenario relating to climate change: Historically, glaciers (massive formations of ice) reflected much of the sun hitting places like Greenland and Antarctica, preventing light energy from being absorbed and warming the land. Glaciers also trap much of the world's freshwater in their ice. Large glaciers often extend to the ocean, where much of their height is submerged below the water line. In recent decades, as polar sea water has warmed, glaciers have been releasing icebergs at a faster rate, which melt into the sea and contribute to rising sea levels. The higher seas submerge more of the glacier in warmer water.

(a) Draw a systems diagram like the ones in lecture, representing this part of the global climate system. Clearly label at least these four things on your diagram for full credit:

- the input: what comes in from outside the system?

- the stock: how is the input stored in the reserve?

- the valve(s): what is the adjustable rate that can increase or decrease the stock?

- any arrows representing feedback, where the amount of stock "turns the valve" and influences the system.

(b) Explain whether this is a case of positive or negative.

Reference no: EM133674031

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