Climate Change 3● Climate skeptics deny climate change occurring● Gore’s solution costs $$● Intergovernmental Panel Climate Change (IPCC)● Lomborg’s response - Lomborg (is slightly more articulate than most climate change skeptics)○ however, he still cites obscure papers that say what he wants to hear.○ ex: The UN science consensus expects temp to cause 400,000 more heat related deaths and 1.8 mill fewer cold-related deaths● 90% true but irrelevant● 10% relevant but trueRead: article in Nature: Civil Conflicts linked to global climate● read it like a science fair presentation○ hypothesis○ experiment: El Nino● Water in California● q: why is LA here? why as big as it is?● urban & agricultural areas need a LOT of water.● compete w/ other states for water● first: LA River● 2nd: reservoirs etc from San Gabriel Valley● 3rd: Owens River○ Mulholland saw 1 river that went east and built famous aqueduct from High Sierra to LA● 4th: Mono Lake● 5th: Colorado River● *the Delta = hub of California’s water supply system○ result: lowest deliveries on record○ 8 year Colorado River drought○ lowest precipitation on record○ fishery conflicts cause cutbacks● Q: who makes these decisions?● A: People like Judge Oliver WangerSalinization of Soils● Confined aquifers > cause salinization in soil● Solutions?○ Drip irrigation - less water in, less salt in○ introduce plants that can○ get rid of salt!● SARI pipeline/SARI system enhancements● 100% water low salt > reverse osmosis > produce 90% water and 10% high salt waterSnow● by 2050, very little snow will be left in Western Coastal areas● important for storage, holds water to avoid floods and provides natural service stroing water that trickles down.HW: links in powerpoint!!!
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