Part A: Assume you are a climate scientist and are wondering if Earth's global mean sea level (MSL) is rising. You begin investigating this question by examining linear trend plots of sea level records from coastal cities around the world. Figure 3.1 shows four samples of these records from locations around the world. The Battery, NY 2.77 +/-0.09 mm/yr eMean rerd Kushiro, Japan 9.39 /-0.30 mm/yr 7.80 750 0.10 720 000 690 4.30 610 2010 630 180 1970 2010 1850 190 Marselle, France 1.25+/-0.14 mm/yr AM Me e iee Mumbai, India 0.79 +/-0.11 mm/yr Lie Meale 7.30 130 720 630 690 640 430 IMO 1940 1900 100 1940 190 1900 2010 2010 Rosearch from NOAA FIGURE 3-1 11. Based on the trend plots in Figure 3.1, state your hypothesis about the trend of Earth's global mean sea level. Meters Meters Meters Meters

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