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Author Question: What is the global pattern of exploitation of fisheries? Compare the yield of capture fisheries with ... (Read 97 times)

cagreen833

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on: Jul 15, 2018
What is the global pattern of exploitation of fisheries? Compare the yield of capture fisheries with that of aquaculture.
 
  What will be an ideal response?

Question 2

What does the IPCC 5th Assessment report say about sea level rise by 2100?
 
  What will be an ideal response?


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zhanghao

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Reply #1 on: Jul 15, 2018
Answer to Question 1

The harvest has increased remarkably since 1950, when it was just 20 million metric tons. By 2003 it had reached 132 million metric tons. Aquaculture accounted for 41.9 million tons, or 32 of the world fish supplies that year. Based on the trends shown in the figure, the capture' fisheries leveled off in the 1990s, and the continued rise in fish production is due to aquaculture.

Answer to Question 2

Recent studies have made it clear that the IPCC projections of sea level rise are strikingly on the low side. These studies indicate that 21st-century warming would lead to a sea level rise of close to 2 meters, considering the plausible rates of melting of glaciers that run into the sea (in Greenland and Antarctica).


cagreen833

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Reply 2 on: Jul 15, 2018
Great answer, keep it coming :)

Dnite

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Reply 3 on: Yesterday
Excellent

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