Please respond to this prompt with the following information Using the ELAC Library’s website, scholar.google.com, or a judicious use of other search engines, _**answer TWO of the following questions**_ for your fellow students, consulting _**at least TWO distinct sources**_. Make sure to indicate which questions you are answering! **1. How much has sea level changed since the end of the last Ice Age?** * Where did you find this information? Include a link to your source. * Do you trust this source? Why or why not? **2. How much has sea level changed since ~1900 until now?** * Where did you find this information? Include a link to your source. * Do you trust this source? Why or why not? **3. How much is sea level projected to change by 2100?** * Where did you find this information? Include a link to your source. * Do you trust this source? Why or why not? **4. Name 1 way humans will be or are currently being impacted by sea level change.** * Where did you find this information? Include a link to your source. * Do you trust this source? Why or why not? After you finish the prompt please respond to the TWO other posts is send you with the following content * Do you agree with your classmate’s assessment of the trustworthiness of their sources? Why or why not? * Is there anything about their answer that is inaccurate, or is their response based on accurate information? Did you find conflicting information, or did your research corroborate their answer? * Are you left with any lingering questions about the topic? **First Person to Reply to :** ## Itxchel I found an article that will answer these two questions: 1) How much is sea level projected to change by 2100? And 2) Name one way humans will be or are currently being impacted by sea level change? At a current rate of sea level rise, ocean levels would be on average “one third of a meter higher by the year 2100.” The average degree of sea level increase is hurrying by an additional “0.085 millimeters per year”, suggesting that the sea levels will be “0.65 meters higher than the current levels by 2100.” Sea level rise will displace tens of millions of people worldwide. Displacements are already taking place in small communities located in erosion prone low-lying coastal sites. Human communities are endangered by sea level rise in two keyways: first the ultimate flood of homes and properties in low- lying coastal areas. Second, the rising water level allows for greater inland incursion of coastal dangers such as storm surges and tsunamis. I trust the source. It was published in the _Bulletin of the Atomic Scientists_. The author Robert McLemon is currently an Associate _Professor_ of Geography and Environmental Stuidies at Wilfrid Laurier _University_ in Waterloo Canada. He is the author of more than two dozen _peer_ reviewed publications on the impacts of climate change on communities. He has also counseled governments in North America and Europe on climate related migration and displacement. McLeman, Robert. “Migration and Displacement Risks _Due_ to Mean Sea-Level Rise.” _Bulletin of the Atomic Scientists_ , vol. 74, no. 3, 2018, pp. 148–54. _Crossref_ , doi:10.1080/00963402.2018.1461951. **Second Person to Reply To** ## Diana **How much has sea level changed since ~1900 until now?** Sea level has changed drastically in the last 100 years. Since the late 1800’s, the sea level has increased to almost a foot and most of it from the last 25 years. “Global mean sea level has risen about 8–9 inches (21–24 cm) since 1880, with about a third of that coming in just the last two and a half decades. The rising water level is mostly _due_ to a combination of meltwater from glaciers and ice sheets and thermal expansion of seawater as it warms. In 2019, global mean sea level was 3.4 inches (87.6 mm) above the 1993 average—the highest annual average in the satellite record (1993-present). From 2018 to 2019, global sea level rose 0.24 inches (6.1 mm) ” (Lindsey, 2021). Lindsey, R. (2021, January 25). Climate change: Global sea Level: NOAA Climate.gov. Retrieved April 14, 2021, from https://www.climate.gov/news- features/understandin… I trust this source because it came from the National Oceanic and Atmospheric Administration at the US Department of Commerce. Being a US government departmend/organization, I consider it credible. **Name 1 way humans will be or are currently being impacted by sea level change.** Humans are being impacted by sea level change in coastal areas like in New Orleans and the devastation that the storm surge that came before Hurricane Katrina even hit landfall in August 2005. Coastal areas in the east and southeast are prone to hurricanes, but over the last years we have seen how these hurricanes, fueled by warm waters and wind, have caused so much destruction in states like Texas and Louisiana. “… more than half of the potential population exposure can be avoided by 2100 if global warming is capped. It is important to keep in mind, however, that population exposure does not depend only on the amount of sea-level rise — the number of people exposed could decrease if people move away from the coast, for example” (Slangen, 2018). Slangen, Aimee. “How humans and rising seas affect each other.” Nature, vol. 558, no. 7708, 2018, p. 196+. Gale Academic OneFile, link.gale.com/apps/doc/A572639603/AONE?u=mont93762&sid=AONE&xid=1c7cbad6. Accessed 14 Apr. 2021.
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