Lec 23 - 4/27/06 Devouring a Golden State Destruction of...

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4/27/06 Devouring a Golden State Destruction of Land, Water, and Air Lecture 23 Wastelands o Mines Wastes Hydraulic mining cuts and debris Downstream deposits o Could be caused by dredging also Still debris moving down Yuba and America Rivers today Water leaching into and out of mines carries heavy metals out into the water creates highly toxic watersheds o Iron Mountain, east of Shasta has a huge problem with this Leeches into the Sacramento River Almaden Mercury mine is leaking mercury into the bay o Bacteria converts it to methyl mercury which gets into the food chain Big Fish are packed with mercury Tuna and Shark o No more than a can of tuna a week o Oil Wastes Bakersfield Brine injection to get more oil out creates more pollution Blowouts, seeps, and leaks of crude oil is very toxic with lots of benzene 1990, Golden Gate oil spill Biggest causes of spill is a tanker breaking up Avila Beach, biggest oil spill site in the U.S. Near Pismo Beach Oil from Kern County Pipeline leaked for 80 years and all the sand had to be removed o Move oil spilled than the Exxon Valdez o Wasted Woodlands 95% of the original forests cut Not once but twice and now working on it a third time Redwood National Park Lumber cutters worked 24 hour a day to try to get enough before the National Park gets established They logged the peaks o So when it was declared a national park, erosion from the peaks carried the some of the tallest trees in the world down into a creak Rumored the lumber cutters cut down the tallest tree
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Lec 23 - 4/27/06 Devouring a Golden State Destruction of...

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