Tornado Alley (PROG)

[ergo sum]

The animal, a Pacific fisher, had been poisoned by an anticoagulant in rat poisons like d-Con. Since then, six other poisoned fishers have been found. Two endangered spotted owls tested positive. Mourad W. Gabriel, a scientist at the University of California, Davis, concluded that the contamination began when marijuana growers in deep forests spread d-Con to protect their plants from wood rats.

That news has helped growers acknowledge, reluctantly, what their antagonists in law enforcement have long maintained: like industrial logging before it, the booming business of marijuana is a threat to forests whose looming dark redwoods preside over vibrant ecosystems.

Hilltops have been leveled to make room for the crop. Bulldozers start landslides on erosion-prone mountainsides. Road and dam construction clogs some streams with dislodged soil. Others are bled dry by diversions. Little water is left for salmon whose populations have been decimated by logging.

And local and state jurisdictions’ ability to deal with the problem has been hobbled by, among other things, the drug’s murky legal status. It is approved by the state for medical uses but still illegal under federal law, leading to a patchwork of growers. Some operate within state rules, while others operate totally outside the law.

The environmental damage may not be as extensive as that caused by the 19th-century diking of the Humboldt estuary here, or 20th-century clear-cut logging, but the romantic outlaw drug has become a destructive juggernaut, experts agree.

“In my career I’ve never seen anything like this,” said Stormer Feiler, a scientist with California’s North Coast Regional Water Quality Control Board. “Since 2007 the amount of unregulated activities has exploded.” He added, “They are grading the mountaintops now, so it affects the whole watershed below.”
http://www.nytimes.com/2013/06/21/us/marijuana-crops-in-california-threaten-forests-and-wildlife.html?hp&_r=0