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June 9, 2018
Quinn Palar, Cottage Grove forester, left, and intern Danny Nichols attach pesticide feeds to a port drilled into an ash tree in Cottage Grove, Minn., on Thursday, June 7. Palar and his team will attempt to treat 1,000 of the roughly 3,000 ash trees that the city of Cottage Grove is responsible for. (John Autey / St. Paul Pioneer Press)
Ash borer dilemma: Cut or treat? Homeowners’ options unpleasant with insect sure to wipe out tree species
June 9, 2018 - 2:29pm
June 7, 2018
Two Wolves travel in a single-file line across ice and snow in winter near Isle Royale. (Rolf Peterson / National Park Service)
Isle Royale wolf reintroduction to begin
June 7, 2018 - 5:48pm
June 4, 2018
Volcano erupts in Guatemala, killing at least 25, injuring dozens more, officials say
June 4, 2018 - 7:23am
June 3, 2018
Storage tanks damaged by fire frame several refining towers at the Husky Energy refinery in Superior. The refinery experienced a large fire earlier this year that damaged much of the infrastructure at the facility. Clint Austin / Forum News Service
The risk remains: Refinery’s use of hydrogen fluoride not going anywhere fast
June 3, 2018 - 5:00am
June 1, 2018
Yellowstone National Park Superintendent Dan Wenk, shown outside his office in Mammoth, Wyo., in 2013. Photo for The Washington Post by Erik Petersen
Facing reassignment under Trump, top Yellowstone official instead retires
June 1, 2018 - 12:39pm
May 31, 2018
Coalition signs letters opposing Twin Metals' mineral leases
May 31, 2018 - 7:33pm
May 17, 2018
Refrigerators at a dump in New Orleans. Reported in 2018, government scientists have detected an increase in emissions of an outlawed industrial gas that destroys ozone, potentially slowing progress in restoring the atmosphere’s protective ozone layer. (Vincent Laforet/Copyright 2018 The New York Times)
Someone, somewhere, is making a banned chemical that destroys the ozone layer, scientists suspect
May 17, 2018 - 9:31pm
Corn is harvested in Princeton, Illinois, on Oct. 9, 2017.  Bloomberg photo by Daniel Acker.
Warming planet could mean bigger corn crops for US farmers
May 17, 2018 - 12:17pm
May 16, 2018
The S.S. William A. Irvin has sat in Minnesota Slip since 1986. Tentative plans to move the 611-foot-long freighter out of the slip so that contaminated bottom sediments can be leveled and covered with clean material are moving forward. Moving the floating museum would present difficulties, as it is only inches narrower than the open channel when the slip’s pedestrian bridge is in the open position. Steve Kuchera / Forum News Serviceplay button
Irvin faces a tight squeeze as preliminary plans to move historic ship underway in Duluth
May 16, 2018 - 11:38am
May 13, 2018
Running coach Jeff Horowitz, in red, and ploggers pick up trash near the Francis L. Cardozo Education Campus in Washington, on April 22, 2018. Photo by Kelyn Soong.
Plogging: A light run with big impact on litter
May 13, 2018 - 10:42am
May 9, 2018
Enbridge, several northern Minnesota bands file exceptions
May 9, 2018 - 8:30pm
Minnesota state Reps. Jason Metsa of Virginia, left, and Dale Lueck of Aitkin answer questions about a wild rice protection bill during a Thursday, March 8, 2018, House committee meeting. Don Davis / Forum News Service
Dayton vetoes wild rice sulfate bill
May 9, 2018 - 5:24pm
May 7, 2018
The European Centre for Medium Range Weather Forecasts' Copernicus Climate Change Service tracks aurface air temperatures. 
Photo by: Copernicus Climate Change Service — Handout
While the US shivered, the rest of the world simmered in planet's third-hottest April
May 7, 2018 - 1:29pm
S new fissure erupted near fissures 2 and 7, beginning with small lava spattering at about 8:44 p.m. on Saturday, May 5. By 9 p.m., lava fountains as high as about 230 feet were erupting from the fissure. Photo courtesy of the U.S. Geological Survey.play button
'This is heartbreaking': Lava burns more homes on Hawaii's Big Island as new fissures form
May 7, 2018 - 8:12am
Ta'sina SapaWin (center) of Cloquet, makes points about treaty rights, land and energy use with Superior, Wis., police officer Joe Markon during a protest at Michel's Corp LLC, a contractor for Enbridge, in Superior on Sept. 14, 2017. At right, officer Marc Letendre listens in. About a dozen protesters were present. (Bob King / Forum News Service)
Minn. authorities prep for pipeline protests: St. Louis Co. sheriff: ‘It’s clearly on our minds’
May 7, 2018 - 5:00am
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