ISP Chapter 7 - Chapter 7: Climate Change? How we predict...

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Chapter 7: Climate Change? How we predict climate changes Computer models, test them by comparing to past history and current weather Extrapolate trends observed on earth Study other worlds, mars and Venus, under even more extreme conditions Wait and see what happens Planets as home for life Why do we think mars once had flowing water? Surface of mars appears to have ancient river beds Condition of craters indicates surface history, (eroded by water on the rims) o Polar caps have dry ice o Olympus mons- huge volcano on mars o Valles marineris- valley thought to be eroded by water Opportunity and spirit rovers- looked for water on mars o Still going, for 3 ½ years o Opportunity, checking out meteorite called shelter island o Main discoveries- blueberry rocks, and other features that can only form in presence of liquid WHAT DETERMINES A PLANETS SURFACE TEMP? ? Where is it hotter? (daytime side of moon? Daytime side of earth? Or both the same?) - The energy emitted by a planet in infrared light equals the amount of sunlight energy it absorbs
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ISP Chapter 7 - Chapter 7: Climate Change? How we predict...

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