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PBS double-bill: Nova's 'Megastorm;' Burns' 'The Dust Bowl'

Helen Graham sits on the porch of her

Helen Graham sits on the porch of her fire-damaged home while waiting to meet an insurance adjuster, Sunday, Nov. 18, 2012 in the Breezy Point section of the Queens borough of New York. More than 100 homes were destroyed by fire in the oceanside community during Superstorm Sandy. Credit: AP

Good night coming up on WNET, with "Nova's" special telecast, "Inside the Megastorm" at 7; then "The Dust Bowl" that follows. They are both, unintentionally, linked -- natural catastrophes with a human touch.

"Bowl" is a superb look at the so-called "dirty thirties," when a vast stretch of the Midwest was flattened by wind and dust; "Megastorm" -- see  promo below -- is a look at a more recent disaster, also caused -- many believe -- by the hand of humanity.

I spoke with Ken Burns briefly last week who clearly lays the cause of Sandy on global warming - and he's certainly not alone in that belief. 

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