Changing climate, invasive species and pollution are threatening the plant.
More from Star Tribune
More from Star Tribune
More from Star Tribune
More from Star Tribune
More from Star Tribune
More From Star Tribune
More From Local
Local

Minneapolis narrows locations for new Third Precinct to two
One would reopen on the site of the current vacant building; the other would be four blocks away.
Local

Falcon Heights to end contract with Ramsey County Sheriff
Sheriff Bob Fletcher said the move "is in everyone's best interest."
South Metro
Twin Cities swimming pool builder charged in alleged down-payment scam
Charges say he spent some of the money gambling, making child support payments, and on a horse and saddle.
Rochester

Winona officials hope to curb carp population in Lake Winona
Advocates and the city are pushing for a grant to fund a study as the first step in improving water quality.
Eat & Drink