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QUESTION
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current event
Current Events Rubric
Current Events Rubric
Current Events – There will be 10 Current Events (CE), one every week, posted in the Discussion section no later than Tuesday afternoon and must be an event posted between one to eight days. You will be required to research and summarize one geography-related news story per week from the popular media and post a brief summary of this story. Your initial post must be at least 300 words, and your student response at least five complete sentences. You will not receive any points for your student response unless you have first submitted an
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| Subject |
Geography |
Pages |
3 |
Style |
APA |
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Answer
Climate Change and the Increasing Arctic Freshwater
Climate change is a topic that has been with us for a long time now. One of its most noticeable and dreaded effects is the rise in ocean and sea levels. In recent days, the media has reported on the results of new studies that indicate that Climate Change is driving increasing amounts of freshwater in the Arctic Ocean. Consequently, this study concludes, increased freshwater will move into the North Atlantic Ocean, thereby disrupting ocean currents and affecting temperatures in Europe.
In the study, Jahn and Laiho (2020) reiterate that “We hear a lot of changes in the Arctic with respect to temperature, how ecosystems and animals are going to be affected, but this particular study gives an added perspective on what’s happening physically to the ocean itself, which then can have important implications for ocean circulation and climate.” (para 2).
It is not that such a scenario has never been witnessed before. In the 1970s and 80s, the Arctic disruptions caused the “great salinity anomalies” that even if were threatening, were only temporary. In case too much fresh water flows from the Arctic into the North Atlantic, and this flow became permanent, then the ocean currents that are responsible for moderating the winter temperatures could be disrupted.
In a strange ironic twist though, this kind of disruption would mitigate the harsh realities of climate in Europe caused by global warming during winter. But as the University of Colorado at Boulder (2020) concludes, “Disrupting the ocean currents could have negative effects for climate change long-term and on the North Atlantic’s ecosystems.” (para 7)
In conclusion, the flow of the Arctic fresh water, if it goes on to become a permanent phenomenon, will greatly impact Europe’s climate and threaten its biodiversity.
References
Alexandra Jahn, Rory Laiho. Forced Changes in the Arctic Freshwater Budget Emerge in
the Early 21st Century. Geophysical Research Letters, 2020; DOI: 10.1029/2020GL088854
University of Colorado at Boulder. (2020, July 30). Increasing Arctic freshwater is driven by
climate change. ScienceDaily. Retrieved August 2, 2020 from www.sciencedaily.com/releases/2020/07/200730092607.htm
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