GEOG 2300 1st Edition Lecture 17Outline of Last Lecture I. BiodiversityII. Positive FeedbacksIII. Other FeedbacksIV. Climate Change and HumansOutline of Current Lecture I. Mitigation of Climate ChangeII. Adaptation of Climate ChangeIII. Ozone DepletionIV. WindCurrent LectureI. Mitigation of Climate ChangeA. Use cleaner energy, burning coal causes a lot of pollution, use wind or solar instead, but it costs more money to begin withB. Less greenhouse gases less serious climate change effectsC. Sequestering carbon in trees, planting trees to take up more carbonD. Carbon management, manage the carbon emitted, pump it underground (new, could cause seismic activity)E. Fertilizing the ocean with iron, phytoplankton thrive on more iron and they take in carbon dioxide, but when phytoplankton die they decay and create methane, idea didn’t workII. Adaptation of Climate ChangeA. Coastal populations, because of rising sea levels, have to move inland or construct leveesB. Adapt to shifting agricultural zones, places getting drier and can’t grow nearlyas muchC. Which of the following is a negative feedback? Increasing radiation from earthIII. Ozone DepletionA. Ozone in the stratosphere absorbs UV radiation B. The ozone is thinning, hole in the ozone layer over the Antarctic C. CFC’s were thinning the ozone (also halon), used in aerosols, packing peanuts, refrigeratorsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.D. Halon still used in airplane fire retardant systemsE. Ozone depletion causes more instances of skin cancerF. Montreal Protocol: reduction in CFC’sG. Smuggling CFC’s is still a problem, but CFC’s are used a lot lessH. Which is not an adaptation of climate change? People will have to build morewind turbinesIV. WindA. Part of weather, moves air aroundB. Cause hazards, creates energy, used for transportationC. Saharan dust: gets blown into the ocean and can cause corals to die as far away as the Caribbean, airborne particles can cause health problems, cause contribute to red tideD. Atmospheric forces that create wind: gravity: pulls air down to earth, pressure gradient force: air moves from high pressure to low pressure, coriolis force: rotation of the earth deflects path of moving air, friction: roughness of surface can slow down earthE. Gravity: higher pressure closer to earth’s surface, pressure decreases rapidly with increased altitudeF. Atmospheric pressure: atmosphere that is held down by gravity exerts a forceupon every surface, measured with barometer, pressure = force per unit area G. Why are CFC’s so damaging to the ozone layer? Each CFC molecule is capable of destroying many ozone moleculesH. Pressure gradient: differences in air pressure, variation of pressure over space, air moves horizontally from areas of high pressure to areas of low pressure: air movement =
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