Episode 1359 · Jun 25, 2010 · 2h 37m
June 25, 2010: Environmental Disasters - Larry Schweiger
Key Moments
Open transcriptTurning up the planet's thermostatSchweiger frames climate change as a thermostat dial: warming pumps more water vapor into the atmosphere, melts mountain glaciers, and feeds the more intense storms scientists have warned about for 15 years.
Methane 100,000 times normal in the GulfPunnett warns that methane levels around the BP spill are running 100,000 times normal - enough that a single lightning strike could ignite a fireball over Florida.
Half of America's seafood at riskSchweiger details what's actually at stake: the Gulf produces about half of US shrimp, 35 percent of blue crab, 40 percent of oysters and 25 percent of finfish.
Dispersants bleached the color out of his shirtSchweiger describes returning from the Gulf to find the Corexit-soaked sleeves of his shirt had lost their color where the chemical touched the fabric.
Corexit was never approved for one mile downSchweiger explains BP is injecting Corexit at the wellhead a mile beneath the surface - a use the chemical was never authorized for - and that's why so much oil never reaches the top.
Schweiger explains the controversy surrounding the chemical dispersant Corexit, which BP has been injecting at the wellhead one mile underwater, a use never previously authorized. He describes how the dispersant forces oil into the water column rather than allowing it to float on the surface, effectively bypassing containment booms and making the true scale of the disaster invisible. He recounts how the chemicals bleached the color from his shirt during one boat trip, illustrating their potency.
The conversation broadens to the Gulf's role as a critical food source, producing roughly half of America's shrimp and 40% of its oysters. Schweiger connects the oil disaster to the larger climate crisis, describing how fossil fuel addiction and political resistance to change continue to block meaningful action on alternative energy.
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