Highlights from the most recent edition of the Cascadia Scorecard.

To measure the health of Northwest forests, the Cascadia Scorecard monitors clearcuts evident in 30 years of NASA Landsat images of five key areas. These include the Olympic Peninsula, two areas in the British Columbia interior, an area in the central Cascades along the Columbia River, and one in southern Oregon.

(See series of animated clearcutting maps.)

• Tracking clearcuts provides a rough gauge for how extensively humans have altered the forests of the Northwest-—and for how effectively northwesterners are safeguarding their distinctive natural heritage.
• Clearcuts of old-growth forests cause long-lasting simplifications of those natural communities. But even the many clearcuts that now occur in second- or third-growth stands are signs of disrupted ecosystems and a general indicator of wood-products consumption.
• Clearcut logging alters natural ecosystems, constricting the habitat for old-forest species, which cannot survive in immature second-growth stands. And all forms of logging emit greenhouse gases, which are responsible for global warming, and require road building, which causes erosion and degrades streams.
• Forest clearcutting slowed dramatically in the 1990s in the limited areas covered by the Scorecard--but it may have sped up again in recent years. In good news, though, the number of acres of forests managed in compliance with the demanding standards of the Forest Stewardship Council is increasing.
  
• Sightline chose three study areas in Western Washington and Oregon to highlight forest practices in a sample of locations. Each location is unique, but they are all similar in the sense that they represent a mix of public and private; state and federal; open to logging and protected forests.
  
• British Columbia: In BC, we chose two adjoining scenes to highlight an area in the interior that has been mostly overlooked, in part because of all the attention to British Columbia’s coastal rainforest. Each study area is defined by a series of satellite images.
• In all three study areas in the United States—Olympic Peninsula, Central Cascades, and Southern Oregon—Forest Service cutting occurred almost exclusively before the Northwest Forest Plan was implemented in 1994. This contributed to an overall reduction in clearcutting since the late 1990s.
• On the Olympic Peninsula, the state has clearcut a greater percentage of its land than the US Forest Service. The reverse is true, however, in the Central Cascades and Southern Oregon study areas. The highest rates of clearcutting occur on private and tribal lands—-particularly the Quinault Indian Reservation-—in some cases clearcutting more than 40 percent of the forests in the past three decades.
• The study highlights the need for better conservation measures across landscapes and across land ownerships. In some cases, FSC certification of timber would improve conditions, in other cases, additional preservation, perhaps in wilderness areas, would help protect our remnant native forests.