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Click here to search for other assets Salt of the Earth: Climate Change Impacts on Salinity Grade levels: 5-8, 9-12 Themes: climate, ocean circulation, water cycle Video: salt_of_earth_03.flv
Jeff Halverson: "Climate change on earth is complicated by the fact that the ocean moves much more slowly than the atmosphere. So you have warming in the atmosphere, warming in the ocean, but they're occurring at different speeds. So they're out of sync, and that makes predicting what's going to happen in the next hundred or two years very, very difficult." Susan Lozier: "Now what we might expect happens, in a very simplistic sense, is that as the ocean warms, there's going to be more evaporation. And that more evaporation would would mean that oceans become saltier. But really it's not just that simple because there's also evaporation, precipitation, and the ice as well, and that's all wrapped up in the study of the hydrologic cycle." (source) Student Outcomes After viewing this video, students should be able to: Explain the effect of solar energy on wind and cloud formation and the effect solar energy, wind and clouds have on climate. (C: 5-8) Explain the effect of solar energy heat on ocean circulation. (O: 5-8) Determine if global precipitation, evaporation, and the cycling of water are changing. (W: 9-12) Key: C = climate / O = ocean circulation / T = 21st century technology / W = water cycle |