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Lecture 24 - Lecture 24 Renewable Energy Sources...

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Lecture’24’ Renewable’Energy’Sources’
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Announcements Exam 4 Dec. 19 th , 1:30-4:30 PM in 314 Altgeld Hall Conflict exam: Dec. 20 th , 1:30-4:30 PM in 165 Noyes Lab You need to e-mail me to sign up for the conflict exam by Monday Dec. 17 th I will hold a review session towards the end of next week, locaRon and Rme to be announced Take advantage of the extra credit lesson (due next week Wednesday)
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A7er’this’class’and’the’associated’reading’you’should’be’able’to’ explain:’ Consequences of climate change to Biodiversity and Humanity (conRnued) How is precipitaRon likely to change in a warmer world? How do we have to change our greenhouse gas emissions to stabilize climate change What technologies exist for low-CO2 emi\ng energy producRon What are the pros and cons of the ones we discussed What makes biofuels a crucial component of renewable energy? Means for energy conservaRon Carbon capture technology/methods What role can governments play in reducing greenhouse gas emissions
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Coral’Bleaching’kills’symbio4c’ algae’in’corals’&’if’sustained’the’ coral’dies’of’starva4on’ Warming’of’the’oceans’and’ocean’acidiFca4on’due’to’released’CO 2 are’two’of’many’contribu4ng’causes’to’loss’of’the’world±s’reefs’ Yellow’dots’indicate’loca4ons’of’major’coral’ bleaching’events’in’recent’years’
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Increases’in’the’amount’of’precipita4on’are’ very likely in’high-la4tudes,’while’decreases’are’ likely in’most’subtropical’land’regions’(by’as’much’as’about’20%’in’the’A1B’scenario’in’ 2100).’ This’is’because’warmer’air’can’pick’up’more’moisture,’which’causes’tropical’areas’to’pick’up’ more’moisture,’leading’to’drought.’All’this’moisture’has’to’go’somewhere,’however,’and’it’ precipitated’back’out’over’cooler’temperate’and’polar’la4tudes,’causing’increased’ precipita4on.’On’average:’ Dry’regions’will’become’dryer,’while’wet’regions’will’become’ weAer Warming’of’the’planet’leads’to’other’changes’in’the’ global’climate’system
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Fig. 1 (A and B) Satellite-derived standardized anomalies for dry-season rainfall for the two most extensive droughts of the 21st century in Amazonia.
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